Canada Air Pollutant Concentrations
Air Pollutants: Daily Avg: NO2: Brantford
Air Pollutants: Daily Avg: NO2: Brantford data was reported at 7.800 ppb in 15 Feb 2026. This records an increase from the previous number of 5.900 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Brantford data is updated daily, averaging 5.600 ppb from Jan 2004 (Median) to 15 Feb 2026, with 8008 observations. The data reached an all-time high of 35.500 ppb in 08 Dec 2025 and a record low of 0.200 ppb in 07 May 2017. Air Pollutants: Daily Avg: NO2: Brantford data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 5.900 14 Feb 2026 | daily | 01 Jan 2004 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Brantford from 01 Jan 2004 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: Guelph
Air Pollutants: Daily Avg: NO2: Guelph data was reported at 10.800 ppb in 15 Feb 2026. This records an increase from the previous number of 10.600 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Guelph data is updated daily, averaging 3.000 ppb from Jul 2001 (Median) to 15 Feb 2026, with 6369 observations. The data reached an all-time high of 36.000 ppb in 26 May 2021 and a record low of 0.100 ppb in 10 Jun 2024. Air Pollutants: Daily Avg: NO2: Guelph data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 10.600 14 Feb 2026 | daily | 30 Jul 2001 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Guelph from 30 Jul 2001 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: Hamilton Downtown
Air Pollutants: Daily Avg: NO2: Hamilton Downtown data was reported at 17.000 ppb in 15 Feb 2026. This records an increase from the previous number of 13.500 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Hamilton Downtown data is updated daily, averaging 11.600 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9469 observations. The data reached an all-time high of 40.900 ppb in 22 Mar 2021 and a record low of 1.500 ppb in 12 Jul 2025. Air Pollutants: Daily Avg: NO2: Hamilton Downtown data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 13.500 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Hamilton Downtown from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: Hamilton Mountain
Air Pollutants: Daily Avg: NO2: Hamilton Mountain data was reported at 12.400 ppb in 15 Feb 2026. This records an increase from the previous number of 10.500 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Hamilton Mountain data is updated daily, averaging 5.300 ppb from Apr 2001 (Median) to 15 Feb 2026, with 8137 observations. The data reached an all-time high of 36.000 ppb in 26 May 2021 and a record low of 0.300 ppb in 27 Jun 2021. Air Pollutants: Daily Avg: NO2: Hamilton Mountain data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 10.500 14 Feb 2026 | daily | 26 Apr 2001 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Hamilton Mountain from 26 Apr 2001 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: Kitchener
Air Pollutants: Daily Avg: NO2: Kitchener data was reported at 13.000 ppb in 15 Feb 2026. This records a decrease from the previous number of 13.400 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Kitchener data is updated daily, averaging 6.400 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9062 observations. The data reached an all-time high of 26.500 ppb in 20 Dec 2018 and a record low of 0.500 ppb in 31 May 2020. Air Pollutants: Daily Avg: NO2: Kitchener data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 13.400 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Kitchener from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: London
Air Pollutants: Daily Avg: NO2: London data was reported at 10.500 ppb in 15 Feb 2026. This records a decrease from the previous number of 16.200 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: London data is updated daily, averaging 4.500 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9165 observations. The data reached an all-time high of 24.900 ppb in 01 Feb 2019 and a record low of 0.600 ppb in 02 Aug 2020. Air Pollutants: Daily Avg: NO2: London data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 16.200 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: London from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: Mississauga
Air Pollutants: Daily Avg: NO2: Mississauga data was reported at 14.100 ppb in 15 Feb 2026. This records a decrease from the previous number of 16.200 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Mississauga data is updated daily, averaging 11.100 ppb from Jan 2000 (Median) to 15 Feb 2026, with 7749 observations. The data reached an all-time high of 35.200 ppb in 29 Dec 2017 and a record low of 0.100 ppb in 27 Mar 2022. Air Pollutants: Daily Avg: NO2: Mississauga data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 16.200 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Mississauga from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: Ottawa Downtown
Air Pollutants: Daily Avg: NO2: Ottawa Downtown data was reported at 5.100 ppb in 15 Feb 2026. This records a decrease from the previous number of 7.900 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Ottawa Downtown data is updated daily, averaging 3.300 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9367 observations. The data reached an all-time high of 31.000 ppb in 15 Feb 2018 and a record low of 0.000 ppb in 08 Sep 2024. Air Pollutants: Daily Avg: NO2: Ottawa Downtown data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 7.900 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Ottawa Downtown from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: Port Stanley
Air Pollutants: Daily Avg: NO2: Port Stanley data was reported at 5.900 ppb in 15 Feb 2026. This records a decrease from the previous number of 6.100 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Port Stanley data is updated daily, averaging 3.400 ppb from Dec 2014 (Median) to 15 Feb 2026, with 4066 observations. The data reached an all-time high of 13.000 ppb in 25 Jan 2024 and a record low of 0.000 ppb in 17 Apr 2022. Air Pollutants: Daily Avg: NO2: Port Stanley data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 6.100 14 Feb 2026 | daily | 16 Dec 2014 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Port Stanley from 16 Dec 2014 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: Sarnia
Air Pollutants: Daily Avg: NO2: Sarnia data was reported at 14.500 ppb in 15 Feb 2026. This records an increase from the previous number of 12.900 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Sarnia data is updated daily, averaging 5.800 ppb from Jan 2003 (Median) to 15 Feb 2026, with 8245 observations. The data reached an all-time high of 34.900 ppb in 11 Jul 2022 and a record low of 0.100 ppb in 27 Mar 2022. Air Pollutants: Daily Avg: NO2: Sarnia data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 12.900 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Sarnia from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: St. Catharines
Air Pollutants: Daily Avg: NO2: St. Catharines data was reported at 11.400 ppb in 15 Feb 2026. This records a decrease from the previous number of 12.600 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: St. Catharines data is updated daily, averaging 5.900 ppb from Mar 2005 (Median) to 15 Feb 2026, with 7636 observations. The data reached an all-time high of 25.100 ppb in 07 Feb 2024 and a record low of 1.000 ppb in 20 Nov 2016. Air Pollutants: Daily Avg: NO2: St. Catharines data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 12.600 14 Feb 2026 | daily | 11 Mar 2005 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: St. Catharines from 11 Mar 2005 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: Thunder Bay
Air Pollutants: Daily Avg: NO2: Thunder Bay data was reported at 7.200 ppb in 15 Feb 2026. This records a decrease from the previous number of 13.900 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Thunder Bay data is updated daily, averaging 9.900 ppb from Jan 2003 (Median) to 15 Feb 2026, with 6816 observations. The data reached an all-time high of 35.200 ppb in 15 Mar 2022 and a record low of 0.400 ppb in 09 Oct 2023. Air Pollutants: Daily Avg: NO2: Thunder Bay data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 13.900 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Thunder Bay from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: Toronto East
Air Pollutants: Daily Avg: NO2: Toronto East data was reported at 13.600 ppb in 15 Feb 2026. This records a decrease from the previous number of 20.900 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Toronto East data is updated daily, averaging 14.000 ppb from Jan 2003 (Median) to 15 Feb 2026, with 8439 observations. The data reached an all-time high of 43.500 ppb in 25 May 2021 and a record low of 1.400 ppb in 26 Sep 2023. Air Pollutants: Daily Avg: NO2: Toronto East data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 20.900 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Toronto East from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: Windsor Downtown
Air Pollutants: Daily Avg: NO2: Windsor Downtown data was reported at 24.100 ppb in 15 Feb 2026. This records an increase from the previous number of 21.700 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Windsor Downtown data is updated daily, averaging 10.400 ppb from Jan 2002 (Median) to 15 Feb 2026, with 8720 observations. The data reached an all-time high of 44.500 ppb in 08 Mar 2019 and a record low of 1.900 ppb in 02 Aug 2020. Air Pollutants: Daily Avg: NO2: Windsor Downtown data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 21.700 14 Feb 2026 | daily | 01 Jan 2002 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Windsor Downtown from 01 Jan 2002 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: NO2: Windsor West
Air Pollutants: Daily Avg: NO2: Windsor West data was reported at 26.100 ppb in 15 Feb 2026. This records an increase from the previous number of 21.300 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: NO2: Windsor West data is updated daily, averaging 17.500 ppb from Jan 2002 (Median) to 15 Feb 2026, with 8646 observations. The data reached an all-time high of 43.500 ppb in 25 May 2021 and a record low of 1.100 ppb in 11 Sep 2022. Air Pollutants: Daily Avg: NO2: Windsor West data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 21.300 14 Feb 2026 | daily | 01 Jan 2002 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: NO2: Windsor West from 01 Jan 2002 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: Nitrogen Dioxide (NO2): Barrie
Air Pollutants: Daily Avg: Nitrogen Dioxide (NO2): Barrie data was reported at 3.100 ppb in 15 Feb 2026. This records a decrease from the previous number of 7.500 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: Nitrogen Dioxide (NO2): Barrie data is updated daily, averaging 2.800 ppb from Jan 2002 (Median) to 15 Feb 2026, with 8779 observations. The data reached an all-time high of 34.100 ppb in 28 Dec 2017 and a record low of 0.700 ppb in 03 Aug 2020. Air Pollutants: Daily Avg: Nitrogen Dioxide (NO2): Barrie data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 7.500 14 Feb 2026 | daily | 01 Jan 2002 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: Nitrogen Dioxide (NO2): Barrie from 01 Jan 2002 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Belleville
Air Pollutants: Daily Avg: O3: Belleville data was reported at 34.500 ppb in 15 Feb 2026. This records a decrease from the previous number of 36.800 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Belleville data is updated daily, averaging 31.300 ppb from Jan 2003 (Median) to 15 Feb 2026, with 8423 observations. The data reached an all-time high of 64.400 ppb in 06 Jun 2021 and a record low of 5.000 ppb in 25 Dec 2023. Air Pollutants: Daily Avg: O3: Belleville data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 36.800 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Belleville from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Brampton
Air Pollutants: Daily Avg: O3: Brampton data was reported at 22.100 ppb in 15 Feb 2026. This records a decrease from the previous number of 28.500 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Brampton data is updated daily, averaging 31.400 ppb from Jul 2000 (Median) to 15 Feb 2026, with 9326 observations. The data reached an all-time high of 62.000 ppb in 25 May 2018 and a record low of 1.000 ppb in 20 Dec 2018. Air Pollutants: Daily Avg: O3: Brampton data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 28.500 14 Feb 2026 | daily | 30 Jul 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Brampton from 30 Jul 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Brantford
Air Pollutants: Daily Avg: O3: Brantford data was reported at 24.000 ppb in 15 Feb 2026. This records a decrease from the previous number of 27.100 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Brantford data is updated daily, averaging 35.200 ppb from Jan 2004 (Median) to 15 Feb 2026, with 8070 observations. The data reached an all-time high of 63.400 ppb in 25 May 2016 and a record low of 1.500 ppb in 20 Dec 2018. Air Pollutants: Daily Avg: O3: Brantford data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 27.100 14 Feb 2026 | daily | 01 Jan 2004 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Brantford from 01 Jan 2004 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Burlington
Air Pollutants: Daily Avg: O3: Burlington data was reported at 33.800 ppb in 15 Feb 2026. This records an increase from the previous number of 27.300 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Burlington data is updated daily, averaging 27.500 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9538 observations. The data reached an all-time high of 62.100 ppb in 26 May 2018 and a record low of 1.800 ppb in 14 Dec 2018. Air Pollutants: Daily Avg: O3: Burlington data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 27.300 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Burlington from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Chatham
Air Pollutants: Daily Avg: O3: Chatham data was reported at 44.900 ppb in 15 Feb 2026. This records an increase from the previous number of 35.300 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Chatham data is updated daily, averaging 31.200 ppb from Jan 2005 (Median) to 15 Feb 2026, with 7692 observations. The data reached an all-time high of 59.800 ppb in 19 May 2021 and a record low of 3.300 ppb in 19 Nov 2019. Air Pollutants: Daily Avg: O3: Chatham data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 35.300 14 Feb 2026 | daily | 01 Jan 2005 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Chatham from 01 Jan 2005 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Cornwall
Air Pollutants: Daily Avg: O3: Cornwall data was reported at 40.000 ppb in 15 Feb 2026. This records an increase from the previous number of 39.800 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Cornwall data is updated daily, averaging 27.000 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9424 observations. The data reached an all-time high of 62.800 ppb in 11 Jun 2017 and a record low of 2.200 ppb in 26 Nov 2020. Air Pollutants: Daily Avg: O3: Cornwall data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 39.800 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Cornwall from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Dorset
Air Pollutants: Daily Avg: O3: Dorset data was reported at 39.100 ppb in 15 Feb 2026. This records an increase from the previous number of 36.100 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Dorset data is updated daily, averaging 34.300 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9477 observations. The data reached an all-time high of 54.800 ppb in 21 Jul 2018 and a record low of 6.200 ppb in 17 Jul 2021. Air Pollutants: Daily Avg: O3: Dorset data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 36.100 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Dorset from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Grand Bend
Air Pollutants: Daily Avg: O3: Grand Bend data was reported at 41.800 ppb in 15 Feb 2026. This records an increase from the previous number of 32.500 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Grand Bend data is updated daily, averaging 33.600 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9446 observations. The data reached an all-time high of 64.500 ppb in 25 May 2018 and a record low of 8.000 ppb in 28 Dec 2023. Air Pollutants: Daily Avg: O3: Grand Bend data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 32.500 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Grand Bend from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Guelph
Air Pollutants: Daily Avg: O3: Guelph data was reported at 28.300 ppb in 15 Feb 2026. This records a decrease from the previous number of 29.300 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Guelph data is updated daily, averaging 32.900 ppb from Jul 2000 (Median) to 15 Feb 2026, with 9329 observations. The data reached an all-time high of 60.300 ppb in 11 Jun 2017 and a record low of 1.700 ppb in 20 Dec 2018. Air Pollutants: Daily Avg: O3: Guelph data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 29.300 14 Feb 2026 | daily | 10 Jul 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Guelph from 10 Jul 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Hamilton Downtown
Air Pollutants: Daily Avg: O3: Hamilton Downtown data was reported at 22.300 ppb in 15 Feb 2026. This records a decrease from the previous number of 26.100 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Hamilton Downtown data is updated daily, averaging 27.800 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9479 observations. The data reached an all-time high of 62.000 ppb in 25 May 2016 and a record low of 0.000 ppb in 19 May 2019. Air Pollutants: Daily Avg: O3: Hamilton Downtown data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 26.100 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Hamilton Downtown from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Hamilton Mountain
Air Pollutants: Daily Avg: O3: Hamilton Mountain data was reported at 26.000 ppb in 15 Feb 2026. This records a decrease from the previous number of 28.300 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Hamilton Mountain data is updated daily, averaging 29.700 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9467 observations. The data reached an all-time high of 67.000 ppb in 25 May 2018 and a record low of 3.000 ppb in 24 May 2021. Air Pollutants: Daily Avg: O3: Hamilton Mountain data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 28.300 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Hamilton Mountain from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Hamilton West
Air Pollutants: Daily Avg: O3: Hamilton West data was reported at 23.000 ppb in 15 Feb 2026. This records a decrease from the previous number of 23.200 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Hamilton West data is updated daily, averaging 21.700 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9469 observations. The data reached an all-time high of 60.600 ppb in 11 Jun 2017 and a record low of 1.000 ppb in 25 Nov 2020. Air Pollutants: Daily Avg: O3: Hamilton West data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 23.200 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Hamilton West from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Kingston
Air Pollutants: Daily Avg: O3: Kingston data was reported at 36.200 ppb in 15 Feb 2026. This records a decrease from the previous number of 36.700 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Kingston data is updated daily, averaging 30.500 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9402 observations. The data reached an all-time high of 62.600 ppb in 06 Jun 2021 and a record low of 0.000 ppb in 15 Jun 2025. Air Pollutants: Daily Avg: O3: Kingston data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 36.700 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Kingston from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Kitchener
Air Pollutants: Daily Avg: O3: Kitchener data was reported at 26.000 ppb in 15 Feb 2026. This records a decrease from the previous number of 26.800 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Kitchener data is updated daily, averaging 29.200 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9473 observations. The data reached an all-time high of 59.800 ppb in 26 May 2018 and a record low of 1.400 ppb in 20 Dec 2018. Air Pollutants: Daily Avg: O3: Kitchener data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 26.800 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Kitchener from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: London
Air Pollutants: Daily Avg: O3: London data was reported at 33.500 ppb in 15 Feb 2026. This records an increase from the previous number of 24.800 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: London data is updated daily, averaging 31.800 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9437 observations. The data reached an all-time high of 60.000 ppb in 21 Jun 2022 and a record low of 4.400 ppb in 10 Dec 2024. Air Pollutants: Daily Avg: O3: London data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 24.800 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: London from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Milton
Air Pollutants: Daily Avg: O3: Milton data was reported at 23.900 ppb in 15 Feb 2026. This records a decrease from the previous number of 25.200 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Milton data is updated daily, averaging 45.800 ppb from Dec 2018 (Median) to 15 Feb 2026, with 2602 observations. The data reached an all-time high of 61.500 ppb in 05 Jun 2021 and a record low of 1.800 ppb in 18 Nov 2019. Air Pollutants: Daily Avg: O3: Milton data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 25.200 14 Feb 2026 | daily | 24 Dec 2018 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Milton from 24 Dec 2018 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Mississauga
Air Pollutants: Daily Avg: O3: Mississauga data was reported at 27.100 ppb in 15 Feb 2026. This records an increase from the previous number of 22.700 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Mississauga data is updated daily, averaging 25.900 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9507 observations. The data reached an all-time high of 61.600 ppb in 11 Jun 2017 and a record low of 1.500 ppb in 18 Nov 2019. Air Pollutants: Daily Avg: O3: Mississauga data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 22.700 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Mississauga from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Newmarket
Air Pollutants: Daily Avg: O3: Newmarket data was reported at 25.800 ppb in 15 Feb 2026. This records a decrease from the previous number of 33.000 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Newmarket data is updated daily, averaging 32.500 ppb from Jan 2002 (Median) to 15 Feb 2026, with 8806 observations. The data reached an all-time high of 63.800 ppb in 25 May 2018 and a record low of 2.000 ppb in 10 Dec 2024. Air Pollutants: Daily Avg: O3: Newmarket data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 33.000 14 Feb 2026 | daily | 01 Jan 2002 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Newmarket from 01 Jan 2002 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: North Bay
Air Pollutants: Daily Avg: O3: North Bay data was reported at 35.400 ppb in 15 Feb 2026. This records an increase from the previous number of 32.800 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: North Bay data is updated daily, averaging 34.000 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9511 observations. The data reached an all-time high of 56.300 ppb in 20 Jun 2016 and a record low of 4.400 ppb in 10 Oct 2018. Air Pollutants: Daily Avg: O3: North Bay data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 32.800 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: North Bay from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Oakville
Air Pollutants: Daily Avg: O3: Oakville data was reported at 27.500 ppb in 15 Feb 2026. This records a decrease from the previous number of 29.200 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Oakville data is updated daily, averaging 29.000 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9431 observations. The data reached an all-time high of 62.500 ppb in 25 May 2018 and a record low of 1.800 ppb in 14 Dec 2018. Air Pollutants: Daily Avg: O3: Oakville data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 29.200 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Oakville from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Oshawa
Air Pollutants: Daily Avg: O3: Oshawa data was reported at 36.700 ppb in 15 Feb 2026. This records an increase from the previous number of 27.000 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Oshawa data is updated daily, averaging 33.700 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9054 observations. The data reached an all-time high of 59.700 ppb in 11 Jun 2017 and a record low of 3.000 ppb in 07 Dec 2015. Air Pollutants: Daily Avg: O3: Oshawa data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 27.000 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Oshawa from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Ottawa Downtown
Air Pollutants: Daily Avg: O3: Ottawa Downtown data was reported at 38.400 ppb in 15 Feb 2026. This records an increase from the previous number of 32.700 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Ottawa Downtown data is updated daily, averaging 22.700 ppb from Jan 2000 (Median) to 15 Feb 2026, with 9437 observations. The data reached an all-time high of 57.600 ppb in 20 Jun 2016 and a record low of 0.700 ppb in 27 Nov 2020. Air Pollutants: Daily Avg: O3: Ottawa Downtown data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 32.700 14 Feb 2026 | daily | 01 Jan 2000 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Ottawa Downtown from 01 Jan 2000 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Parry Sound
Air Pollutants: Daily Avg: O3: Parry Sound data was reported at 38.600 ppb in 15 Feb 2026. This records an increase from the previous number of 31.200 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Parry Sound data is updated daily, averaging 33.000 ppb from Mar 2001 (Median) to 15 Feb 2026, with 8737 observations. The data reached an all-time high of 62.500 ppb in 11 Jun 2017 and a record low of 4.900 ppb in 02 Nov 2016. Air Pollutants: Daily Avg: O3: Parry Sound data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 31.200 14 Feb 2026 | daily | 31 Mar 2001 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Parry Sound from 31 Mar 2001 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Peterborough
Air Pollutants: Daily Avg: O3: Peterborough data was reported at 38.300 ppb in 15 Feb 2026. This records an increase from the previous number of 34.200 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Peterborough data is updated daily, averaging 31.400 ppb from Jan 2002 (Median) to 15 Feb 2026, with 8799 observations. The data reached an all-time high of 62.200 ppb in 25 May 2018 and a record low of 6.100 ppb in 10 Dec 2024. Air Pollutants: Daily Avg: O3: Peterborough data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 34.200 14 Feb 2026 | daily | 01 Jan 2002 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Peterborough from 01 Jan 2002 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Port Stanley
Air Pollutants: Daily Avg: O3: Port Stanley data was reported at 41.800 ppb in 15 Feb 2026. This records an increase from the previous number of 33.800 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Port Stanley data is updated daily, averaging 32.700 ppb from Jan 2003 (Median) to 15 Feb 2026, with 8418 observations. The data reached an all-time high of 68.700 ppb in 25 May 2018 and a record low of 7.400 ppb in 28 Dec 2023. Air Pollutants: Daily Avg: O3: Port Stanley data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 33.800 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Port Stanley from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Sault Ste. Marie
Air Pollutants: Daily Avg: O3: Sault Ste. Marie data was reported at 37.800 ppb in 15 Feb 2026. This records an increase from the previous number of 27.000 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Sault Ste. Marie data is updated daily, averaging 30.200 ppb from Jan 2003 (Median) to 15 Feb 2026, with 8385 observations. The data reached an all-time high of 58.400 ppb in 13 May 2022 and a record low of 3.900 ppb in 09 Oct 2018. Air Pollutants: Daily Avg: O3: Sault Ste. Marie data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 27.000 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Sault Ste. Marie from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: St. Catharines
Air Pollutants: Daily Avg: O3: St. Catharines data was reported at 28.000 ppb in 15 Feb 2026. This records an increase from the previous number of 27.300 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: St. Catharines data is updated daily, averaging 33.600 ppb from Jan 2003 (Median) to 15 Feb 2026, with 8435 observations. The data reached an all-time high of 66.200 ppb in 25 May 2016 and a record low of 1.900 ppb in 26 Dec 2023. Air Pollutants: Daily Avg: O3: St. Catharines data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 27.300 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: St. Catharines from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Sudbury
Air Pollutants: Daily Avg: O3: Sudbury data was reported at 31.900 ppb in 15 Feb 2026. This records an increase from the previous number of 28.100 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Sudbury data is updated daily, averaging 23.900 ppb from Jan 2003 (Median) to 15 Feb 2026, with 8439 observations. The data reached an all-time high of 52.600 ppb in 20 Jun 2020 and a record low of 4.700 ppb in 07 Feb 2018. Air Pollutants: Daily Avg: O3: Sudbury data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 28.100 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Sudbury from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Thunder Bay
Air Pollutants: Daily Avg: O3: Thunder Bay data was reported at 24.100 ppb in 15 Feb 2026. This records an increase from the previous number of 17.300 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Thunder Bay data is updated daily, averaging 21.800 ppb from Jan 2003 (Median) to 15 Feb 2026, with 8366 observations. The data reached an all-time high of 54.100 ppb in 29 May 2023 and a record low of 2.100 ppb in 19 Dec 2018. Air Pollutants: Daily Avg: O3: Thunder Bay data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 17.300 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Thunder Bay from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Tiverton
Air Pollutants: Daily Avg: O3: Tiverton data was reported at 33.700 ppb in 15 Feb 2026. This stayed constant from the previous number of 33.700 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Tiverton data is updated daily, averaging 39.300 ppb from Jan 2003 (Median) to 15 Feb 2026, with 8377 observations. The data reached an all-time high of 65.500 ppb in 24 May 2016 and a record low of 8.900 ppb in 04 Aug 2020. Air Pollutants: Daily Avg: O3: Tiverton data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 33.700 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Tiverton from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Toronto East
Air Pollutants: Daily Avg: O3: Toronto East data was reported at 27.500 ppb in 15 Feb 2026. This records an increase from the previous number of 20.600 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Toronto East data is updated daily, averaging 26.800 ppb from Jan 2003 (Median) to 15 Feb 2026, with 8422 observations. The data reached an all-time high of 56.600 ppb in 11 Jun 2017 and a record low of 3.000 ppb in 02 Dec 2017. Air Pollutants: Daily Avg: O3: Toronto East data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 20.600 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Toronto East from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Toronto North
Air Pollutants: Daily Avg: O3: Toronto North data was reported at 24.100 ppb in 15 Feb 2026. This records an increase from the previous number of 23.800 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Toronto North data is updated daily, averaging 28.300 ppb from Jan 2003 (Median) to 15 Feb 2026, with 8434 observations. The data reached an all-time high of 60.600 ppb in 05 Jun 2021 and a record low of 2.200 ppb in 20 Dec 2018. Air Pollutants: Daily Avg: O3: Toronto North data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 23.800 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Toronto North from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Windsor Downtown
Air Pollutants: Daily Avg: O3: Windsor Downtown data was reported at 13.600 ppb in 15 Feb 2026. This records a decrease from the previous number of 17.800 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Windsor Downtown data is updated daily, averaging 23.500 ppb from Jan 2002 (Median) to 15 Feb 2026, with 8704 observations. The data reached an all-time high of 58.300 ppb in 21 Jun 2022 and a record low of 0.300 ppb in 19 Nov 2019. Air Pollutants: Daily Avg: O3: Windsor Downtown data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 17.800 14 Feb 2026 | daily | 01 Jan 2002 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Windsor Downtown from 01 Jan 2002 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: O3: Windsor West
Air Pollutants: Daily Avg: O3: Windsor West data was reported at 12.700 ppb in 15 Feb 2026. This records a decrease from the previous number of 17.600 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: O3: Windsor West data is updated daily, averaging 22.200 ppb from Jan 2002 (Median) to 15 Feb 2026, with 8735 observations. The data reached an all-time high of 57.900 ppb in 29 May 2023 and a record low of 0.800 ppb in 19 Nov 2019. Air Pollutants: Daily Avg: O3: Windsor West data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 17.600 14 Feb 2026 | daily | 01 Jan 2002 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: O3: Windsor West from 01 Jan 2002 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: Ozone (O3): Barrie
Air Pollutants: Daily Avg: Ozone (O3): Barrie data was reported at 36.700 ppb in 15 Feb 2026. This records an increase from the previous number of 31.600 ppb for 14 Feb 2026. Air Pollutants: Daily Avg: Ozone (O3): Barrie data is updated daily, averaging 32.000 ppb from Jan 2002 (Median) to 15 Feb 2026, with 8803 observations. The data reached an all-time high of 52.900 ppb in 11 Jun 2017 and a record low of 2.700 ppb in 10 Dec 2024. Air Pollutants: Daily Avg: Ozone (O3): Barrie data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 31.600 14 Feb 2026 | daily | 01 Jan 2002 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: Ozone (O3): Barrie from 01 Jan 2002 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Brampton
Air Pollutants: Daily Avg: PM2.5: Brampton data was reported at 10.000 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 13.700 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Brampton data is updated daily, averaging 2.800 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8435 observations. The data reached an all-time high of 90.500 mg/Cub m in 28 Jun 2023 and a record low of 0.400 mg/Cub m in 15 Apr 2023. Air Pollutants: Daily Avg: PM2.5: Brampton data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 13.700 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Brampton from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Burlington
Air Pollutants: Daily Avg: PM2.5: Burlington data was reported at 10.600 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 19.500 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Burlington data is updated daily, averaging 3.500 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8441 observations. The data reached an all-time high of 130.800 mg/Cub m in 28 Jun 2023 and a record low of 0.100 mg/Cub m in 23 Sep 2022. Air Pollutants: Daily Avg: PM2.5: Burlington data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 19.500 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Burlington from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Chatham
Air Pollutants: Daily Avg: PM2.5: Chatham data was reported at 30.800 mg/Cub m in 15 Feb 2026. This records an increase from the previous number of 22.200 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Chatham data is updated daily, averaging 8.700 mg/Cub m from Jan 2005 (Median) to 15 Feb 2026, with 7658 observations. The data reached an all-time high of 128.200 mg/Cub m in 28 Jun 2023 and a record low of 0.000 mg/Cub m in 27 Sep 2022. Air Pollutants: Daily Avg: PM2.5: Chatham data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 22.200 14 Feb 2026 | daily | 01 Jan 2005 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Chatham from 01 Jan 2005 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Cornwall
Air Pollutants: Daily Avg: PM2.5: Cornwall data was reported at 3.600 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 9.200 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Cornwall data is updated daily, averaging 13.500 mg/Cub m from Apr 2003 (Median) to 15 Feb 2026, with 8317 observations. The data reached an all-time high of 93.500 mg/Cub m in 26 Jun 2023 and a record low of 0.000 mg/Cub m in 30 Dec 2025. Air Pollutants: Daily Avg: PM2.5: Cornwall data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 9.200 14 Feb 2026 | daily | 16 Apr 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Cornwall from 16 Apr 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Dorset
Air Pollutants: Daily Avg: PM2.5: Dorset data was reported at 1.900 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 6.800 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Dorset data is updated daily, averaging 2.400 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8354 observations. The data reached an all-time high of 111.000 mg/Cub m in 25 Jun 2023 and a record low of 0.000 mg/Cub m in 10 Mar 2023. Air Pollutants: Daily Avg: PM2.5: Dorset data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 6.800 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Dorset from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Grand Bend
Air Pollutants: Daily Avg: PM2.5: Grand Bend data was reported at 28.100 mg/Cub m in 15 Feb 2026. This records an increase from the previous number of 27.700 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Grand Bend data is updated daily, averaging 4.000 mg/Cub m from Apr 2003 (Median) to 15 Feb 2026, with 8281 observations. The data reached an all-time high of 96.000 mg/Cub m in 27 Jun 2023 and a record low of 0.000 mg/Cub m in 04 Jan 2023. Air Pollutants: Daily Avg: PM2.5: Grand Bend data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 27.700 14 Feb 2026 | daily | 24 Apr 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Grand Bend from 24 Apr 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Guelph
Air Pollutants: Daily Avg: PM2.5: Guelph data was reported at 14.000 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 17.700 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Guelph data is updated daily, averaging 6.000 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8385 observations. The data reached an all-time high of 80.500 mg/Cub m in 28 Jun 2023 and a record low of 0.000 mg/Cub m in 01 May 2024. Air Pollutants: Daily Avg: PM2.5: Guelph data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 17.700 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Guelph from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Hamilton Mountain
Air Pollutants: Daily Avg: PM2.5: Hamilton Mountain data was reported at 14.600 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 20.000 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Hamilton Mountain data is updated daily, averaging 6.000 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8425 observations. The data reached an all-time high of 99.600 mg/Cub m in 28 Jun 2023 and a record low of 0.000 mg/Cub m in 13 Jul 2025. Air Pollutants: Daily Avg: PM2.5: Hamilton Mountain data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 20.000 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Hamilton Mountain from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Hamilton West
Air Pollutants: Daily Avg: PM2.5: Hamilton West data was reported at 14.400 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 18.800 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Hamilton West data is updated daily, averaging 10.500 mg/Cub m from Mar 2003 (Median) to 15 Feb 2026, with 8333 observations. The data reached an all-time high of 92.800 mg/Cub m in 28 Jun 2023 and a record low of 0.300 mg/Cub m in 06 Jul 2018. Air Pollutants: Daily Avg: PM2.5: Hamilton West data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 18.800 14 Feb 2026 | daily | 28 Mar 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Hamilton West from 28 Mar 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Kingston
Air Pollutants: Daily Avg: PM2.5: Kingston data was reported at 5.400 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 12.800 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Kingston data is updated daily, averaging 6.400 mg/Cub m from Mar 2003 (Median) to 15 Feb 2026, with 7912 observations. The data reached an all-time high of 211.200 mg/Cub m in 07 Jun 2023 and a record low of 0.000 mg/Cub m in 13 Nov 2022. Air Pollutants: Daily Avg: PM2.5: Kingston data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 12.800 14 Feb 2026 | daily | 12 Mar 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Kingston from 12 Mar 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Kitchener
Air Pollutants: Daily Avg: PM2.5: Kitchener data was reported at 16.100 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 17.900 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Kitchener data is updated daily, averaging 4.500 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8387 observations. The data reached an all-time high of 73.900 mg/Cub m in 28 Jun 2023 and a record low of 0.000 mg/Cub m in 03 Jul 2024. Air Pollutants: Daily Avg: PM2.5: Kitchener data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 17.900 14 Feb 2026 | daily | 02 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Kitchener from 02 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: London
Air Pollutants: Daily Avg: PM2.5: London data was reported at 31.000 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 34.700 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: London data is updated daily, averaging 14.400 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8324 observations. The data reached an all-time high of 77.500 mg/Cub m in 28 Jun 2023 and a record low of 0.100 mg/Cub m in 29 Sep 2022. Air Pollutants: Daily Avg: PM2.5: London data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 34.700 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: London from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Milton
Air Pollutants: Daily Avg: PM2.5: Milton data was reported at 11.500 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 17.800 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Milton data is updated daily, averaging 1.300 mg/Cub m from Dec 2018 (Median) to 15 Feb 2026, with 2602 observations. The data reached an all-time high of 96.900 mg/Cub m in 28 Jun 2023 and a record low of 0.300 mg/Cub m in 23 Sep 2022. Air Pollutants: Daily Avg: PM2.5: Milton data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 17.800 14 Feb 2026 | daily | 24 Dec 2018 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Milton from 24 Dec 2018 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Mississauga
Air Pollutants: Daily Avg: PM2.5: Mississauga data was reported at 9.300 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 16.300 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Mississauga data is updated daily, averaging 6.100 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8416 observations. The data reached an all-time high of 87.000 mg/Cub m in 28 Jun 2023 and a record low of 0.000 mg/Cub m in 14 Nov 2022. Air Pollutants: Daily Avg: PM2.5: Mississauga data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 16.300 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Mississauga from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Oakville
Air Pollutants: Daily Avg: PM2.5: Oakville data was reported at 10.800 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 16.900 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Oakville data is updated daily, averaging 3.600 mg/Cub m from May 2003 (Median) to 15 Feb 2026, with 8272 observations. The data reached an all-time high of 116.600 mg/Cub m in 28 Jun 2023 and a record low of 0.100 mg/Cub m in 21 Nov 2016. Air Pollutants: Daily Avg: PM2.5: Oakville data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 16.900 14 Feb 2026 | daily | 30 May 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Oakville from 30 May 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Oshawa
Air Pollutants: Daily Avg: PM2.5: Oshawa data was reported at 5.900 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 17.100 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Oshawa data is updated daily, averaging 4.400 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8045 observations. The data reached an all-time high of 78.300 mg/Cub m in 14 Jul 2025 and a record low of 0.000 mg/Cub m in 08 Oct 2023. Air Pollutants: Daily Avg: PM2.5: Oshawa data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 17.100 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Oshawa from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Ottawa Downtown
Air Pollutants: Daily Avg: PM2.5: Ottawa Downtown data was reported at 2.700 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 7.800 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Ottawa Downtown data is updated daily, averaging 3.400 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8357 observations. The data reached an all-time high of 210.700 mg/Cub m in 07 Jun 2023 and a record low of 0.100 mg/Cub m in 25 Oct 2016. Air Pollutants: Daily Avg: PM2.5: Ottawa Downtown data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 7.800 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Ottawa Downtown from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Parry Sound
Air Pollutants: Daily Avg: PM2.5: Parry Sound data was reported at 4.000 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 10.700 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Parry Sound data is updated daily, averaging 3.500 mg/Cub m from Apr 2003 (Median) to 15 Feb 2026, with 8329 observations. The data reached an all-time high of 112.800 mg/Cub m in 25 Jun 2023 and a record low of 0.000 mg/Cub m in 01 Dec 2022. Air Pollutants: Daily Avg: PM2.5: Parry Sound data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 10.700 14 Feb 2026 | daily | 03 Apr 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Parry Sound from 03 Apr 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Peterborough
Air Pollutants: Daily Avg: PM2.5: Peterborough data was reported at 3.900 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 12.500 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Peterborough data is updated daily, averaging 2.100 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8432 observations. The data reached an all-time high of 80.600 mg/Cub m in 30 Jun 2023 and a record low of 0.000 mg/Cub m in 06 Dec 2020. Air Pollutants: Daily Avg: PM2.5: Peterborough data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 12.500 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Peterborough from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Port Stanley
Air Pollutants: Daily Avg: PM2.5: Port Stanley data was reported at 27.100 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 29.700 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Port Stanley data is updated daily, averaging 2.700 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8406 observations. The data reached an all-time high of 90.600 mg/Cub m in 28 Jun 2023 and a record low of 0.200 mg/Cub m in 14 Jun 2018. Air Pollutants: Daily Avg: PM2.5: Port Stanley data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 29.700 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Port Stanley from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Sarnia
Air Pollutants: Daily Avg: PM2.5: Sarnia data was reported at 38.000 mg/Cub m in 15 Feb 2026. This records an increase from the previous number of 22.900 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Sarnia data is updated daily, averaging 8.300 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8312 observations. The data reached an all-time high of 122.400 mg/Cub m in 28 Jun 2023 and a record low of 0.000 mg/Cub m in 02 Jan 2022. Air Pollutants: Daily Avg: PM2.5: Sarnia data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 22.900 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Sarnia from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Sault Ste. Marie
Air Pollutants: Daily Avg: PM2.5: Sault Ste. Marie data was reported at 13.900 mg/Cub m in 15 Feb 2026. This records an increase from the previous number of 5.800 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Sault Ste. Marie data is updated daily, averaging 5.300 mg/Cub m from Jun 2003 (Median) to 15 Feb 2026, with 8209 observations. The data reached an all-time high of 159.000 mg/Cub m in 27 Jun 2023 and a record low of 0.000 mg/Cub m in 22 Sep 2022. Air Pollutants: Daily Avg: PM2.5: Sault Ste. Marie data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 5.800 14 Feb 2026 | daily | 12 Jun 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Sault Ste. Marie from 12 Jun 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: St. Catharines
Air Pollutants: Daily Avg: PM2.5: St. Catharines data was reported at 16.200 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 19.300 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: St. Catharines data is updated daily, averaging 4.000 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8396 observations. The data reached an all-time high of 104.300 mg/Cub m in 28 Jun 2023 and a record low of 0.000 mg/Cub m in 10 Oct 2016. Air Pollutants: Daily Avg: PM2.5: St. Catharines data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 19.300 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: St. Catharines from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Sudbury
Air Pollutants: Daily Avg: PM2.5: Sudbury data was reported at 6.200 mg/Cub m in 15 Feb 2026. This records an increase from the previous number of 4.300 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Sudbury data is updated daily, averaging 3.000 mg/Cub m from Jun 2004 (Median) to 15 Feb 2026, with 7884 observations. The data reached an all-time high of 270.600 mg/Cub m in 25 Jun 2023 and a record low of 0.000 mg/Cub m in 08 Oct 2023. Air Pollutants: Daily Avg: PM2.5: Sudbury data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 4.300 14 Feb 2026 | daily | 28 Jun 2004 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Sudbury from 28 Jun 2004 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Thunder Bay
Air Pollutants: Daily Avg: PM2.5: Thunder Bay data was reported at 9.800 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 11.500 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Thunder Bay data is updated daily, averaging 4.900 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8311 observations. The data reached an all-time high of 150.600 mg/Cub m in 03 Jun 2025 and a record low of 0.000 mg/Cub m in 07 Nov 2018. Air Pollutants: Daily Avg: PM2.5: Thunder Bay data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 11.500 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Thunder Bay from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Toronto Downtown
Air Pollutants: Daily Avg: PM2.5: Toronto Downtown data was reported at 9.100 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 19.500 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Toronto Downtown data is updated daily, averaging 7.000 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8417 observations. The data reached an all-time high of 205.900 mg/Cub m in 14 Jul 2025 and a record low of 0.000 mg/Cub m in 05 Oct 2018. Air Pollutants: Daily Avg: PM2.5: Toronto Downtown data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 19.500 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Toronto Downtown from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Toronto North
Air Pollutants: Daily Avg: PM2.5: Toronto North data was reported at 11.700 mg/Cub m in 15 Feb 2026. This records a decrease from the previous number of 18.200 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Toronto North data is updated daily, averaging 5.400 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8370 observations. The data reached an all-time high of 86.800 mg/Cub m in 28 Jun 2023 and a record low of 0.000 mg/Cub m in 22 Sep 2021. Air Pollutants: Daily Avg: PM2.5: Toronto North data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 18.200 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Toronto North from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Windsor Downtown
Air Pollutants: Daily Avg: PM2.5: Windsor Downtown data was reported at 56.400 mg/Cub m in 15 Feb 2026. This records an increase from the previous number of 37.000 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Windsor Downtown data is updated daily, averaging 4.600 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8421 observations. The data reached an all-time high of 145.000 mg/Cub m in 28 Jun 2023 and a record low of 0.800 mg/Cub m in 20 Mar 2020. Air Pollutants: Daily Avg: PM2.5: Windsor Downtown data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 37.000 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |
View Canada's Air Pollutants: Daily Avg: PM2.5: Windsor Downtown from 01 Jan 2003 to 14 Feb 2026 in the chart:
Air Pollutants: Daily Avg: PM2.5: Windsor West
Air Pollutants: Daily Avg: PM2.5: Windsor West data was reported at 35.100 mg/Cub m in 15 Feb 2026. This records an increase from the previous number of 25.300 mg/Cub m for 14 Feb 2026. Air Pollutants: Daily Avg: PM2.5: Windsor West data is updated daily, averaging 11.500 mg/Cub m from Jan 2003 (Median) to 15 Feb 2026, with 8408 observations. The data reached an all-time high of 149.900 mg/Cub m in 28 Jun 2023 and a record low of 0.100 mg/Cub m in 22 Sep 2021. Air Pollutants: Daily Avg: PM2.5: Windsor West data remains active status in CEIC and is reported by Ministry of the Environment, Conservation and Parks Ontario. The data is categorized under Global Database’s Canada – Table CA.ESG.E: Air Pollutant Concentrations. [COVID-19-IMPACT]
| Last | Frequency | Range |
|---|---|---|
| 25.300 14 Feb 2026 | daily | 01 Jan 2003 - 14 Feb 2026 |