Pollutant Concentrations for January 18, 2021, 8:00 am EST

Choose Date Options:






Air Pollutant 1-Hour Concentrations For January 18, 2021, 8:00 am EST
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
27
Cornwall graph for O3
2
Cornwall graph for PM2.5
3.7
Cornwall graph for NO2
   
27
Ottawa Downtown graph for O3
2
Ottawa Downtown graph for PM2.5
4.6
Ottawa Downtown graph for NO2
.1
Ottawa Downtown graph for SO2
.13
Ottawa Downtown graph for CO
25
Kingston graph for O3
1
Kingston graph for PM2.5
5.1
Kingston graph for NO2
   
25
Belleville graph for O3
3
Belleville graph for PM2.5
4.5
Belleville graph for NO2
   
34
Petawawa graph for O3
1
Petawawa graph for PM2.5
     
21
Peterborough graph for O3
3
Peterborough graph for PM2.5
8.7
Peterborough graph for NO2
   
27
Oshawa graph for O3
2
Oshawa graph for PM2.5
2.2
Oshawa graph for NO2
   
33
Dorset graph for O3
1
Dorset graph for PM2.5
     
23
St. Catharines graph for O3
3
St. Catharines graph for PM2.5
12.4
St. Catharines graph for NO2
   
16
Toronto East graph for O3
1
Toronto East graph for PM2.5
18.3
Toronto East graph for NO2
   
5
Toronto Downtown graph for O3
5
Toronto Downtown graph for PM2.5
23.2
Toronto Downtown graph for NO2
   
33
North Bay graph for O3
1
North Bay graph for PM2.5
3.6
North Bay graph for NO2
   
20
Toronto North graph for O3
2
Toronto North graph for PM2.5
12.2
Toronto North graph for NO2
0
Toronto North graph for SO2
 
28
Newmarket graph for O3
3
Newmarket graph for PM2.5
3.9
Newmarket graph for NO2
   
11
Toronto West graph for O3
3
Toronto West graph for PM2.5
19.9
Toronto West graph for NO2
0
Toronto West graph for SO2
.27
Toronto West graph for CO
8
Mississauga graph for O3
5
Mississauga graph for PM2.5
25.4
Mississauga graph for NO2
   
14
Oakville graph for O3
4
Oakville graph for PM2.5
16
Oakville graph for NO2
   
22
Barrie graph for O3
3
Barrie graph for PM2.5
8.3
Barrie graph for NO2
   
6
Brampton graph for O3
6
Brampton graph for PM2.5
24.5
Brampton graph for NO2
   
12
Burlington graph for O3
4
Burlington graph for PM2.5
18.8
Burlington graph for NO2
   
18
Hamilton Downtown graph for O3
5
Hamilton Downtown graph for PM2.5
15
Hamilton Downtown graph for NO2
.4
Hamilton Downtown graph for SO2
.19
Hamilton Downtown graph for CO
8
Milton graph for O3
5
Milton graph for PM2.5
19.9
Milton graph for NO2
N/A
Milton graph for SO2
 
19
Hamilton Mountain graph for O3
3
Hamilton Mountain graph for PM2.5
10.4
Hamilton Mountain graph for NO2
0
Hamilton Mountain graph for SO2
 
19
Hamilton West graph for O3
3
Hamilton West graph for PM2.5
10.1
Hamilton West graph for NO2
   
30
Parry Sound graph for O3
0
Parry Sound graph for PM2.5
2.1
Parry Sound graph for NO2
   
16
Guelph graph for O3
4
Guelph graph for PM2.5
12.1
Guelph graph for NO2
   
19
Brantford graph for O3
3
Brantford graph for PM2.5
5.8
Brantford graph for NO2
   
14
Kitchener graph for O3
3
Kitchener graph for PM2.5
15.2
Kitchener graph for NO2
   
29
Sudbury graph for O3
2
Sudbury graph for PM2.5
8.1
Sudbury graph for NO2
.1
Sudbury graph for SO2
 
22
Port Stanley graph for O3
4
Port Stanley graph for PM2.5
2.3
Port Stanley graph for NO2
   
21
London graph for O3
4
London graph for PM2.5
6.3
London graph for NO2
   
31
Tiverton graph for O3
2
Tiverton graph for PM2.5
     
27
Grand Bend graph for O3
2
Grand Bend graph for PM2.5
1.8
Grand Bend graph for NO2
   
20
Chatham graph for O3
3
Chatham graph for PM2.5
6.9
Chatham graph for NO2
   
15
Sarnia graph for O3
5
Sarnia graph for PM2.5
9.7
Sarnia graph for NO2
.2
Sarnia graph for SO2
 
11
Windsor Downtown graph for O3
5
Windsor Downtown graph for PM2.5
15.9
Windsor Downtown graph for NO2
0
Windsor Downtown graph for SO2
.24
Windsor Downtown graph for CO
5
Windsor West graph for O3
13
Windsor West graph for PM2.5
17.9
Windsor West graph for NO2
.8
Windsor West graph for SO2
 
32
Sault Ste. Marie graph for O3
1
Sault Ste. Marie graph for PM2.5
1.7
Sault Ste. Marie graph for NO2
.4
Sault Ste. Marie graph for SO2
 
11
Thunder Bay graph for O3
5
Thunder Bay graph for PM2.5
14.6
Thunder Bay graph for NO2
   

Order by Station Name

Note: 
Ontario 1-hour AAQC for O3 = 80 ppb
Ontario 1-hour AAQC for NO2 = 200 ppb
Ontario 1-hour AAQC for SO2 = 250 ppb
Ontario 1-hour AAQC for CO = 30 ppm

Note: The pollutant concentrations on this web page are based on automatically
polled data and have not undergone final verification.

Disclaimer