Pollutant Concentrations for August 21, 2017, 9:00 pm EDT

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Air Pollutant 1-Hour Concentrations For August 21, 2017, 9:00 pm EDT
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
49
Cornwall graph for O3
11
Cornwall graph for PM2.5
3
Cornwall graph for NO2
   
46
Ottawa Downtown graph for O3
12
Ottawa Downtown graph for PM2.5
5
Ottawa Downtown graph for NO2
0
Ottawa Downtown graph for SO2
.26
Ottawa Downtown graph for CO
45
Ottawa Central graph for O3
11
Ottawa Central graph for PM2.5
3
Ottawa Central graph for NO2
   
66
Kingston graph for O3
11
Kingston graph for PM2.5
1
Kingston graph for NO2
   
65
Belleville graph for O3
11
Belleville graph for PM2.5
2
Belleville graph for NO2
   
21
Petawawa graph for O3
11
Petawawa graph for PM2.5
     
57
Peterborough graph for O3
9
Peterborough graph for PM2.5
6
Peterborough graph for NO2
   
55
Oshawa graph for O3
9
Oshawa graph for PM2.5
6
Oshawa graph for NO2
   
18
Dorset graph for O3
11
Dorset graph for PM2.5
     
38
St. Catharines graph for O3
13
St. Catharines graph for PM2.5
16
St. Catharines graph for NO2
   
43
Toronto East graph for O3
13
Toronto East graph for PM2.5
14
Toronto East graph for NO2
   
52
Toronto Downtown graph for O3
18
Toronto Downtown graph for PM2.5
6
Toronto Downtown graph for NO2
   
34
North Bay graph for O3
11
North Bay graph for PM2.5
2
North Bay graph for NO2
   
49
Toronto North graph for O3
12
Toronto North graph for PM2.5
11
Toronto North graph for NO2
0
Toronto North graph for SO2
 
44
Newmarket  graph for O3
11
Newmarket  graph for PM2.5
4
Newmarket  graph for NO2
   
44
Toronto West graph for O3
13
Toronto West graph for PM2.5
13
Toronto West graph for NO2
1
Toronto West graph for SO2
.32
Toronto West graph for CO
46
Mississauga graph for O3
17
Mississauga graph for PM2.5
9
Mississauga graph for NO2
   
49
Oakville  graph for O3
13
Oakville  graph for PM2.5
7
Oakville  graph for NO2
   
37
Barrie graph for O3
18
Barrie graph for PM2.5
7
Barrie graph for NO2
   
47
Brampton graph for O3
14
Brampton graph for PM2.5
6
Brampton graph for NO2
   
43
Burlington graph for O3
13
Burlington graph for PM2.5
10
Burlington graph for NO2
   
49
Hamilton Downtown graph for O3
14
Hamilton Downtown graph for PM2.5
4
Hamilton Downtown graph for NO2
0
Hamilton Downtown graph for SO2
.25
Hamilton Downtown graph for CO
50
Hamilton Mountain graph for O3
11
Hamilton Mountain graph for PM2.5
3
Hamilton Mountain graph for NO2
0
Hamilton Mountain graph for SO2
 
47
Hamilton West graph for O3
13
Hamilton West graph for PM2.5
5
Hamilton West graph for NO2
   
42
Parry Sound graph for O3
10
Parry Sound graph for PM2.5
3
Parry Sound graph for NO2
   
50
Guelph graph for O3
26
Guelph graph for PM2.5
5
Guelph graph for NO2
   
45
Brantford graph for O3
9
Brantford graph for PM2.5
1
Brantford graph for NO2
   
48
Kitchener graph for O3
16
Kitchener graph for PM2.5
4
Kitchener graph for NO2
   
29
Sudbury graph for O3
14
Sudbury graph for PM2.5
3
Sudbury graph for NO2
1
Sudbury graph for SO2
 
47
Port Stanley graph for O3
12
Port Stanley graph for PM2.5
1
Port Stanley graph for NO2
   
39
London graph for O3
13
London graph for PM2.5
9
London graph for NO2
   
44
Tiverton graph for O3
13
Tiverton graph for PM2.5
3
Tiverton graph for NO2
   
47
Grand Bend graph for O3
10
Grand Bend graph for PM2.5
2
Grand Bend graph for NO2
   
44
Chatham graph for O3
9
Chatham graph for PM2.5
4
Chatham graph for NO2
   
46
Sarnia graph for O3
13
Sarnia graph for PM2.5
4
Sarnia graph for NO2
0
Sarnia graph for SO2
 
42
Windsor Downtown graph for O3
6
Windsor Downtown graph for PM2.5
5
Windsor Downtown graph for NO2
0
Windsor Downtown graph for SO2
.18
Windsor Downtown graph for CO
42
Windsor West graph for O3
7
Windsor West graph for PM2.5
3
Windsor West graph for NO2
0
Windsor West graph for SO2
 
31
Sault Ste Marie graph for O3
12
Sault Ste Marie graph for PM2.5
2
Sault Ste Marie graph for NO2
0
Sault Ste Marie graph for SO2
 
12
Thunder Bay graph for O3
4
Thunder Bay graph for PM2.5
6
Thunder Bay 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 = 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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