Pollutant Concentrations for September 24, 2023, 4:00 am EDT

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Air Pollutant 1-Hour Concentrations For September 24, 2023, 4:00 am EDT
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
45
Thunder Bay graph for O3
10
Thunder Bay graph for PM2.5
1.6
Thunder Bay graph for NO2
   
29
Sault Ste. Marie graph for O3
12
Sault Ste. Marie graph for PM2.5
1.9
Sault Ste. Marie graph for NO2
0
Sault Ste. Marie graph for SO2
 
28
Windsor West graph for O3
12
Windsor West graph for PM2.5
3.5
Windsor West graph for NO2
0
Windsor West graph for SO2
 
28
Windsor Downtown graph for O3
12
Windsor Downtown graph for PM2.5
4.2
Windsor Downtown graph for NO2
0.1
Windsor Downtown graph for SO2
0.26
Windsor Downtown graph for CO
23
Sarnia graph for O3
13
Sarnia graph for PM2.5
2.8
Sarnia graph for NO2
0.1
Sarnia graph for SO2
 
25
Chatham graph for O3
11
Chatham graph for PM2.5
1.1
Chatham graph for NO2
   
18
Grand Bend graph for O3
15
Grand Bend graph for PM2.5
1.9
Grand Bend graph for NO2
   
21
Tiverton graph for O3
14
Tiverton graph for PM2.5
     
21
London graph for O3
13
London graph for PM2.5
5.3
London graph for NO2
   
34
Port Stanley graph for O3
11
Port Stanley graph for PM2.5
0.5
Port Stanley graph for NO2
   
11
Sudbury graph for O3
12
Sudbury graph for PM2.5
3.3
Sudbury graph for NO2
0.4
Sudbury graph for SO2
 
14
Kitchener graph for O3
17
Kitchener graph for PM2.5
4.8
Kitchener graph for NO2
   
19
Brantford graph for O3
10
Brantford graph for PM2.5
2.9
Brantford graph for NO2
   
18
Guelph graph for O3
14
Guelph graph for PM2.5
6.2
Guelph graph for NO2
   
23
Parry Sound graph for O3
19
Parry Sound graph for PM2.5
0.5
Parry Sound graph for NO2
   
27
Hamilton West graph for O3
10
Hamilton West graph for PM2.5
7.6
Hamilton West graph for NO2
   
34
Hamilton Mountain graph for O3
10
Hamilton Mountain graph for PM2.5
2
Hamilton Mountain graph for NO2
2.1
Hamilton Mountain graph for SO2
 
9
Milton graph for O3
17
Milton graph for PM2.5
15.5
Milton graph for NO2
0.2
Milton graph for SO2
 
28
Hamilton Downtown graph for O3
10
Hamilton Downtown graph for PM2.5
6.3
Hamilton Downtown graph for NO2
7.6
Hamilton Downtown graph for SO2
0.21
Hamilton Downtown graph for CO
33
Burlington graph for O3
8
Burlington graph for PM2.5
1.7
Burlington graph for NO2
   
12
Brampton graph for O3
15
Brampton graph for PM2.5
13.6
Brampton graph for NO2
   
27
Barrie graph for O3
13
Barrie graph for PM2.5
1.4
Barrie graph for NO2
   
13
Oakville graph for O3
17
Oakville graph for PM2.5
11.3
Oakville graph for NO2
   
13
Mississauga graph for O3
13
Mississauga graph for PM2.5
6.8
Mississauga graph for NO2
   
11
Toronto West graph for O3
14
Toronto West graph for PM2.5
13.2
Toronto West graph for NO2
0
Toronto West graph for SO2
0.42
Toronto West graph for CO
16
Newmarket graph for O3
15
Newmarket graph for PM2.5
2.7
Newmarket graph for NO2
   
18
Toronto North graph for O3
11
Toronto North graph for PM2.5
4.8
Toronto North graph for NO2
0
Toronto North graph for SO2
 
11
North Bay graph for O3
12
North Bay graph for PM2.5
2.3
North Bay graph for NO2
   
19
Toronto Downtown graph for O3
11
Toronto Downtown graph for PM2.5
7.5
Toronto Downtown graph for NO2
   
23
Toronto East graph for O3
13
Toronto East graph for PM2.5
3.5
Toronto East graph for NO2
   
20
St. Catharines graph for O3
10
St. Catharines graph for PM2.5
2.9
St. Catharines graph for NO2
   
5
Dorset graph for O3
16
Dorset graph for PM2.5
     
29
Oshawa graph for O3
8
Oshawa graph for PM2.5
1.9
Oshawa graph for NO2
   
24
Peterborough graph for O3
13
Peterborough graph for PM2.5
1.2
Peterborough graph for NO2
   
23
Belleville graph for O3
12
Belleville graph for PM2.5
2.1
Belleville graph for NO2
   
21
Kingston graph for O3
15
Kingston graph for PM2.5
3
Kingston graph for NO2
   
13
Ottawa Downtown graph for O3
16
Ottawa Downtown graph for PM2.5
1.6
Ottawa Downtown graph for NO2
   
12
Cornwall graph for O3
20
Cornwall graph for PM2.5
7.7
Cornwall graph for NO2
   

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Note: 
Ontario 1-hour AAQC for O3 = 80 ppb
Ontario 1-hour AAQC for NO2 = 200 ppb
Ontario 1-hour AAQC for SO2 = 40 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.

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