Pollutant Concentrations for March 18, 2024, 9:00 pm EDT

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Air Pollutant 1-Hour Concentrations For March 18, 2024, 9:00 pm EDT
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
38
Barrie graph for O3
2
Barrie graph for PM2.5
1.8
Barrie graph for NO2
   
36
Belleville graph for O3
1
Belleville graph for PM2.5
1.5
Belleville graph for NO2
   
40
Brampton graph for O3
1
Brampton graph for PM2.5
1.8
Brampton graph for NO2
   
40
Brantford graph for O3
2
Brantford graph for PM2.5
0.9
Brantford graph for NO2
   
36
Burlington graph for O3
2
Burlington graph for PM2.5
4
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
1.6
Cornwall graph for NO2
   
40
Dorset graph for O3
1
Dorset graph for PM2.5
     
40
Grand Bend graph for O3
2
Grand Bend graph for PM2.5
0.4
Grand Bend graph for NO2
   
41
Guelph graph for O3
2
Guelph graph for PM2.5
0
Guelph graph for NO2
   
38
Hamilton Downtown graph for O3
2
Hamilton Downtown graph for PM2.5
2.8
Hamilton Downtown graph for NO2
0.4
Hamilton Downtown graph for SO2
0.16
Hamilton Downtown graph for CO
40
Hamilton Mountain graph for O3
2
Hamilton Mountain graph for PM2.5
1.8
Hamilton Mountain graph for NO2
0
Hamilton Mountain graph for SO2
 
33
Hamilton West graph for O3
2
Hamilton West graph for PM2.5
6.3
Hamilton West graph for NO2
   
35
Kingston graph for O3
1
Kingston graph for PM2.5
1.6
Kingston graph for NO2
   
39
Kitchener graph for O3
2
Kitchener graph for PM2.5
0.9
Kitchener graph for NO2
   
39
London graph for O3
2
London graph for PM2.5
3.2
London graph for NO2
   
40
Milton graph for O3
2
Milton graph for PM2.5
3.3
Milton graph for NO2
0.2
Milton graph for SO2
 
39
Mississauga graph for O3
2
Mississauga graph for PM2.5
2.7
Mississauga graph for NO2
   
40
Newmarket graph for O3
1
Newmarket graph for PM2.5
1.1
Newmarket graph for NO2
   
37
North Bay graph for O3
1
North Bay graph for PM2.5
1
North Bay graph for NO2
   
40
Oakville graph for O3
1
Oakville graph for PM2.5
1.6
Oakville graph for NO2
   
41
Oshawa graph for O3
2
Oshawa graph for PM2.5
0.4
Oshawa graph for NO2
   
35
Ottawa Downtown graph for O3
1
Ottawa Downtown graph for PM2.5
0.8
Ottawa Downtown graph for NO2
   
39
Parry Sound graph for O3
2
Parry Sound graph for PM2.5
0.1
Parry Sound graph for NO2
   
37
Peterborough graph for O3
1
Peterborough graph for PM2.5
0.7
Peterborough graph for NO2
   
37
Port Stanley graph for O3
2
Port Stanley graph for PM2.5
0.1
Port Stanley graph for NO2
   
36
Sarnia graph for O3
2
Sarnia graph for PM2.5
4.8
Sarnia graph for NO2
0.2
Sarnia graph for SO2
 
35
Sault Ste. Marie graph for O3
1
Sault Ste. Marie graph for PM2.5
2.3
Sault Ste. Marie graph for NO2
0
Sault Ste. Marie graph for SO2
 
38
St. Catharines graph for O3
2
St. Catharines graph for PM2.5
2.1
St. Catharines graph for NO2
   
37
Sudbury graph for O3
2
Sudbury graph for PM2.5
3.2
Sudbury graph for NO2
0
Sudbury graph for SO2
 
38
Thunder Bay graph for O3
3
Thunder Bay graph for PM2.5
1.2
Thunder Bay graph for NO2
   
40
Tiverton graph for O3
1
Tiverton graph for PM2.5
     
30
Toronto Downtown graph for O3
4
Toronto Downtown graph for PM2.5
9.7
Toronto Downtown graph for NO2
   
33
Toronto East graph for O3
3
Toronto East graph for PM2.5
8.9
Toronto East graph for NO2
   
36
Toronto North graph for O3
2
Toronto North graph for PM2.5
5.3
Toronto North graph for NO2
0
Toronto North graph for SO2
 
34
Toronto West graph for O3
2
Toronto West graph for PM2.5
9.1
Toronto West graph for NO2
0
Toronto West graph for SO2
0.17
Toronto West graph for CO
32
Windsor Downtown graph for O3
3
Windsor Downtown graph for PM2.5
8.8
Windsor Downtown graph for NO2
0.1
Windsor Downtown graph for SO2
0.17
Windsor Downtown graph for CO
37
Windsor West graph for O3
3
Windsor West graph for PM2.5
4.2
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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