|
Canada Air Pollutants: Daily Avg: O3: Parry Sound (ppb)
|
32.400
24 Dec 2025
|
daily
|
31 Mar 2001 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Thunder Bay (ppb)
|
19.200
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Tiverton (ppb)
|
29.600
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Toronto East (ppb)
|
21.300
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Toronto North (ppb)
|
23.800
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Windsor Downtown (ppb)
|
17.100
24 Dec 2025
|
daily
|
01 Jan 2002 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Windsor West (ppb)
|
16.100
24 Dec 2025
|
daily
|
01 Jan 2002 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Brampton (mg/Cub m)
|
3.800
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Burlington (mg/Cub m)
|
5.400
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Chatham (mg/Cub m)
|
9.400
24 Dec 2025
|
daily
|
01 Jan 2005 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Cornwall (mg/Cub m)
|
7.000
24 Dec 2025
|
daily
|
16 Apr 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Dorset (mg/Cub m)
|
2.200
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Grand Bend (mg/Cub m)
|
4.200
24 Dec 2025
|
daily
|
24 Apr 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Guelph (mg/Cub m)
|
4.800
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Hamilton Mountain (mg/Cub m)
|
5.500
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Hamilton West (mg/Cub m)
|
5.400
24 Dec 2025
|
daily
|
28 Mar 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Kingston (mg/Cub m)
|
4.500
24 Dec 2025
|
daily
|
12 Mar 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Kitchener (mg/Cub m)
|
4.600
24 Dec 2025
|
daily
|
02 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: London (mg/Cub m)
|
6.100
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Milton (mg/Cub m)
|
4.900
24 Dec 2025
|
daily
|
24 Dec 2018 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Mississauga (mg/Cub m)
|
4.500
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Oakville (mg/Cub m)
|
4.600
24 Dec 2025
|
daily
|
30 May 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Oshawa (mg/Cub m)
|
3.700
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Ottawa Downtown (mg/Cub m)
|
5.300
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Parry Sound (mg/Cub m)
|
2.000
24 Dec 2025
|
daily
|
03 Apr 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Peterborough (mg/Cub m)
|
4.000
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Port Stanley (mg/Cub m)
|
6.000
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Sarnia (mg/Cub m)
|
8.700
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Sault Ste. Marie (mg/Cub m)
|
2.300
24 Dec 2025
|
daily
|
12 Jun 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: St. Catharines (mg/Cub m)
|
5.900
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Sudbury (mg/Cub m)
|
2.000
24 Dec 2025
|
daily
|
28 Jun 2004 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Thunder Bay (mg/Cub m)
|
4.800
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Toronto Downtown (mg/Cub m)
|
6.000
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Toronto North (mg/Cub m)
|
4.800
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Windsor Downtown (mg/Cub m)
|
19.600
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: PM2.5: Windsor West (mg/Cub m)
|
19.500
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: Nitrogen Dioxide (NO2): Barrie (ppb)
|
3.700
24 Dec 2025
|
daily
|
01 Jan 2002 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Brantford (ppb)
|
2.200
24 Dec 2025
|
daily
|
01 Jan 2004 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Guelph (ppb)
|
3.900
24 Dec 2025
|
daily
|
30 Jul 2001 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Hamilton Downtown (ppb)
|
7.200
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Hamilton Mountain (ppb)
|
4.100
24 Dec 2025
|
daily
|
26 Apr 2001 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Kitchener (ppb)
|
4.300
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: London (ppb)
|
4.600
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Mississauga (ppb)
|
6.600
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Ottawa Downtown (ppb)
|
6.500
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Port Stanley (ppb)
|
2.200
24 Dec 2025
|
daily
|
16 Dec 2014 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Sarnia (ppb)
|
4.200
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: St. Catharines (ppb)
|
5.600
24 Dec 2025
|
daily
|
11 Mar 2005 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Thunder Bay (ppb)
|
11.000
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Toronto East (ppb)
|
11.500
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Windsor Downtown (ppb)
|
12.700
24 Dec 2025
|
daily
|
01 Jan 2002 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: NO2: Windsor West (ppb)
|
12.600
24 Dec 2025
|
daily
|
01 Jan 2002 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: Ozone (O3): Barrie (ppb)
|
29.300
24 Dec 2025
|
daily
|
01 Jan 2002 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Belleville (ppb)
|
26.300
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Brampton (ppb)
|
29.700
24 Dec 2025
|
daily
|
30 Jul 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Brantford (ppb)
|
26.000
24 Dec 2025
|
daily
|
01 Jan 2004 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Burlington (ppb)
|
23.900
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Chatham (ppb)
|
24.200
24 Dec 2025
|
daily
|
01 Jan 2005 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Cornwall (ppb)
|
19.100
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Dorset (ppb)
|
31.600
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Grand Bend (ppb)
|
30.400
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Guelph (ppb)
|
29.000
24 Dec 2025
|
daily
|
10 Jul 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Hamilton Downtown (ppb)
|
24.400
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Hamilton Mountain (ppb)
|
27.100
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Hamilton West (ppb)
|
24.600
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Kingston (ppb)
|
26.000
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Kitchener (ppb)
|
27.800
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: London (ppb)
|
27.400
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Milton (ppb)
|
26.400
24 Dec 2025
|
daily
|
24 Dec 2018 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Mississauga (ppb)
|
25.400
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Newmarket (ppb)
|
29.300
24 Dec 2025
|
daily
|
01 Jan 2002 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: North Bay (ppb)
|
28.400
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Oakville (ppb)
|
26.400
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Oshawa (ppb)
|
29.300
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Ottawa Downtown (ppb)
|
22.000
24 Dec 2025
|
daily
|
01 Jan 2000 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Peterborough (ppb)
|
29.600
24 Dec 2025
|
daily
|
01 Jan 2002 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Port Stanley (ppb)
|
28.700
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Sault Ste. Marie (ppb)
|
29.200
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: St. Catharines (ppb)
|
26.200
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|
|
Canada Air Pollutants: Daily Avg: O3: Sudbury (ppb)
|
29.100
24 Dec 2025
|
daily
|
01 Jan 2003 - 24 Dec 2025
|