Pollutant Concentrations for April 20, 2019, 2:00 am EDT

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Air Pollutant 1-Hour Concentrations For April 20, 2019, 2:00 am EDT
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
39
Barrie graph for O3
1
Barrie graph for PM2.5
1
Barrie graph for NO2
    
38
Belleville graph for O3
1
Belleville graph for PM2.5
3
Belleville graph for NO2
    
41
Brampton graph for O3
2
Brampton graph for PM2.5
2
Brampton graph for NO2
    
38
Brantford graph for O3
0
Brantford graph for PM2.5
2
Brantford graph for NO2
    
34
Burlington graph for O3
1
Burlington graph for PM2.5
6
Burlington graph for NO2
    
36
Chatham graph for O3
2
Chatham graph for PM2.5
2
Chatham graph for NO2
    
40
Cornwall graph for O3
2
Cornwall graph for PM2.5
1
Cornwall graph for NO2
    
41
Dorset graph for O3
0
Dorset graph for PM2.5
      
41
Grand Bend graph for O3
1
Grand Bend graph for PM2.5
0
Grand Bend graph for NO2
    
39
Guelph graph for O3
0
Guelph graph for PM2.5
1
Guelph graph for NO2
    
29
Hamilton Downtown graph for O3
2
Hamilton Downtown graph for PM2.5
11
Hamilton Downtown graph for NO2
.1
Hamilton Downtown graph for SO2
.23
Hamilton Downtown graph for CO
34
Hamilton Mountain graph for O3
1
Hamilton Mountain graph for PM2.5
5
Hamilton Mountain graph for NO2
0
Hamilton Mountain graph for SO2
  
35
Hamilton West graph for O3
2
Hamilton West graph for PM2.5
4
Hamilton West graph for NO2
    
39
Kingston graph for O3
2
Kingston graph for PM2.5
1
Kingston graph for NO2
    
42
Kitchener graph for O3
2
Kitchener graph for PM2.5
1
Kitchener graph for NO2
    
37
London graph for O3
2
London graph for PM2.5
2
London graph for NO2
    
40
Milton graph for O3
0
Milton graph for PM2.5
3
Milton graph for NO2
.7
Milton graph for SO2
  
35
Mississauga graph for O3
1
Mississauga graph for PM2.5
5
Mississauga graph for NO2
    
42
Newmarket graph for O3
1
Newmarket graph for PM2.5
0
Newmarket graph for NO2
    
33
North Bay graph for O3
3
North Bay graph for PM2.5
2
North Bay graph for NO2
    
34
Oakville graph for O3
2
Oakville graph for PM2.5
7
Oakville graph for NO2
    
39
Oshawa graph for O3
1
Oshawa graph for PM2.5
1
Oshawa graph for NO2
    
36
Ottawa Downtown graph for O3
5
Ottawa Downtown graph for PM2.5
4
Ottawa Downtown graph for NO2
.2
Ottawa Downtown graph for SO2
.17
Ottawa Downtown graph for CO
36
Parry Sound graph for O3
2
Parry Sound graph for PM2.5
1
Parry Sound graph for NO2
    
37
Petawawa graph for O3
0
Petawawa graph for PM2.5
      
42
Peterborough graph for O3
1
Peterborough graph for PM2.5
1
Peterborough graph for NO2
    
38
Port Stanley graph for O3
2
Port Stanley graph for PM2.5
2
Port Stanley graph for NO2
    
40
Sarnia graph for O3
2
Sarnia graph for PM2.5
0
Sarnia graph for NO2
0
Sarnia graph for SO2
  
33
Sault Ste Marie graph for O3
6
Sault Ste Marie graph for PM2.5
7
Sault Ste Marie graph for NO2
0
Sault Ste Marie graph for SO2
  
36
St. Catharines graph for O3
1
St. Catharines graph for PM2.5
1
St. Catharines graph for NO2
    
33
Sudbury graph for O3
2
Sudbury graph for PM2.5
5
Sudbury graph for NO2
.1
Sudbury graph for SO2
  
22
Thunder Bay graph for O3
7
Thunder Bay graph for PM2.5
14
Thunder Bay graph for NO2
    
35
Tiverton graph for O3
3
Tiverton graph for PM2.5
N/A
Tiverton graph for NO2
    
36
Toronto Downtown graph for O3
1
Toronto Downtown graph for PM2.5
0
Toronto Downtown graph for NO2
    
35
Toronto East graph for O3
2
Toronto East graph for PM2.5
5
Toronto East graph for NO2
    
38
Toronto North graph for O3
0
Toronto North graph for PM2.5
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
7
Toronto West graph for NO2
0
Toronto West graph for SO2
.21
Toronto West graph for CO
35
Windsor Downtown graph for O3
4
Windsor Downtown graph for PM2.5
3
Windsor Downtown graph for NO2
0
Windsor Downtown graph for SO2
.18
Windsor Downtown graph for CO
38
Windsor West graph for O3
2
Windsor West graph for PM2.5
1
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 = 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.

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