Pollutant Concentrations for March 19, 2024, 12:00 am EDT

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Air Pollutant 1-Hour Concentrations For March 19, 2024, 12:00 am EDT
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
38
Barrie graph for O3
1
Barrie graph for PM2.5
1.8
Barrie graph for NO2
   
37
Belleville graph for O3
1
Belleville graph for PM2.5
1.8
Belleville graph for NO2
   
40
Brampton graph for O3
1
Brampton graph for PM2.5
1.4
Brampton graph for NO2
   
39
Brantford graph for O3
2
Brantford graph for PM2.5
1.3
Brantford graph for NO2
   
39
Burlington graph for O3
2
Burlington graph for PM2.5
2.7
Burlington graph for NO2
   
38
Chatham graph for O3
2
Chatham graph for PM2.5
4.7
Chatham graph for NO2
   
32
Cornwall graph for O3
1
Cornwall graph for PM2.5
1.9
Cornwall graph for NO2
   
37
Dorset graph for O3
1
Dorset graph for PM2.5
     
39
Grand Bend graph for O3
2
Grand Bend graph for PM2.5
0.3
Grand Bend graph for NO2
   
39
Guelph graph for O3
2
Guelph graph for PM2.5
0.1
Guelph graph for NO2
   
37
Hamilton Downtown graph for O3
2
Hamilton Downtown graph for PM2.5
4.9
Hamilton Downtown graph for NO2
1.2
Hamilton Downtown graph for SO2
0.15
Hamilton Downtown graph for CO
43
Hamilton Mountain graph for O3
2
Hamilton Mountain graph for PM2.5
1.2
Hamilton Mountain graph for NO2
0
Hamilton Mountain graph for SO2
 
37
Hamilton West graph for O3
2
Hamilton West graph for PM2.5
4.5
Hamilton West graph for NO2
   
34
Kingston graph for O3
1
Kingston graph for PM2.5
1.4
Kingston graph for NO2
   
37
Kitchener graph for O3
2
Kitchener graph for PM2.5
1.4
Kitchener graph for NO2
   
37
London graph for O3
3
London graph for PM2.5
4.1
London graph for NO2
   
38
Milton graph for O3
4
Milton graph for PM2.5
5.7
Milton graph for NO2
0.4
Milton graph for SO2
 
40
Mississauga graph for O3
1
Mississauga graph for PM2.5
2.1
Mississauga graph for NO2
   
40
Newmarket graph for O3
1
Newmarket graph for PM2.5
1
Newmarket graph for NO2
   
32
North Bay graph for O3
2
North Bay graph for PM2.5
3.4
North Bay graph for NO2
   
40
Oakville graph for O3
2
Oakville graph for PM2.5
1.7
Oakville graph for NO2
   
39
Oshawa graph for O3
2
Oshawa graph for PM2.5
0.7
Oshawa graph for NO2
   
36
Ottawa Downtown graph for O3
1
Ottawa Downtown graph for PM2.5
0.2
Ottawa Downtown graph for NO2
   
37
Parry Sound graph for O3
2
Parry Sound graph for PM2.5
1.1
Parry Sound graph for NO2
   
37
Peterborough graph for O3
2
Peterborough graph for PM2.5
0.6
Peterborough graph for NO2
   
36
Port Stanley graph for O3
2
Port Stanley graph for PM2.5
0.7
Port Stanley graph for NO2
   
38
Sarnia graph for O3
2
Sarnia graph for PM2.5
2.5
Sarnia graph for NO2
0.2
Sarnia graph for SO2
 
27
Sault Ste. Marie graph for O3
6
Sault Ste. Marie graph for PM2.5
10.9
Sault Ste. Marie graph for NO2
3
Sault Ste. Marie graph for SO2
 
40
St. Catharines graph for O3
2
St. Catharines graph for PM2.5
2
St. Catharines graph for NO2
   
34
Sudbury graph for O3
2
Sudbury graph for PM2.5
4.1
Sudbury graph for NO2
0.1
Sudbury graph for SO2
 
33
Thunder Bay graph for O3
3
Thunder Bay graph for PM2.5
4
Thunder Bay graph for NO2
   
40
Tiverton graph for O3
1
Tiverton graph for PM2.5
     
34
Toronto Downtown graph for O3
2
Toronto Downtown graph for PM2.5
7.6
Toronto Downtown graph for NO2
   
39
Toronto East graph for O3
2
Toronto East graph for PM2.5
5
Toronto East graph for NO2
   
39
Toronto North graph for O3
2
Toronto North graph for PM2.5
4.8
Toronto North graph for NO2
0
Toronto North graph for SO2
 
34
Toronto West graph for O3
2
Toronto West graph for PM2.5
8.7
Toronto West graph for NO2
0
Toronto West graph for SO2
0.15
Toronto West graph for CO
36
Windsor Downtown graph for O3
2
Windsor Downtown graph for PM2.5
4.8
Windsor Downtown graph for NO2
0.1
Windsor Downtown graph for SO2
0.15
Windsor Downtown graph for CO
38
Windsor West graph for O3
2
Windsor West graph for PM2.5
2.9
Windsor West graph for NO2
0
Windsor West graph for SO2
 

Order by Station Location (East to West)

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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