Pollutant Concentrations for October 21, 2017, 12:00 am EDT

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Air Pollutant 1-Hour Concentrations For October 21, 2017, 12:00 am EDT
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
31
Cornwall graph for O3
5
Cornwall graph for PM2.5
8
Cornwall graph for NO2
   
24
Ottawa Downtown graph for O3
5
Ottawa Downtown graph for PM2.5
12
Ottawa Downtown graph for NO2
0
Ottawa Downtown graph for SO2
.24
Ottawa Downtown graph for CO
27
Ottawa Central graph for O3
4
Ottawa Central graph for PM2.5
5
Ottawa Central graph for NO2
   
40
Kingston graph for O3
2
Kingston graph for PM2.5
2
Kingston graph for NO2
   
33
Belleville graph for O3
3
Belleville graph for PM2.5
6
Belleville graph for NO2
   
14
Petawawa graph for O3
5
Petawawa graph for PM2.5
     
28
Peterborough graph for O3
10
Peterborough graph for PM2.5
8
Peterborough graph for NO2
   
4
Oshawa graph for O3
11
Oshawa graph for PM2.5
17
Oshawa graph for NO2
   
19
Dorset graph for O3
7
Dorset graph for PM2.5
     
12
St. Catharines graph for O3
7
St. Catharines graph for PM2.5
22
St. Catharines graph for NO2
   
21
Toronto East graph for O3
8
Toronto East graph for PM2.5
20
Toronto East graph for NO2
   
27
Toronto Downtown graph for O3
5
Toronto Downtown graph for PM2.5
15
Toronto Downtown graph for NO2
   
14
North Bay graph for O3
7
North Bay graph for PM2.5
29
North Bay graph for NO2
   
11
Toronto North graph for O3
8
Toronto North graph for PM2.5
33
Toronto North graph for NO2
1
Toronto North graph for SO2
 
42
Newmarket  graph for O3
3
Newmarket  graph for PM2.5
3
Newmarket  graph for NO2
   
11
Toronto West graph for O3
7
Toronto West graph for PM2.5
36
Toronto West graph for NO2
2
Toronto West graph for SO2
.3
Toronto West graph for CO
16
Mississauga graph for O3
7
Mississauga graph for PM2.5
11
Mississauga graph for NO2
   
37
Oakville  graph for O3
3
Oakville  graph for PM2.5
3
Oakville  graph for NO2
   
25
Barrie graph for O3
11
Barrie graph for PM2.5
12
Barrie graph for NO2
   
30
Brampton graph for O3
9
Brampton graph for PM2.5
8
Brampton graph for NO2
   
15
Burlington graph for O3
7
Burlington graph for PM2.5
26
Burlington graph for NO2
   
23
Hamilton Downtown graph for O3
5
Hamilton Downtown graph for PM2.5
20
Hamilton Downtown graph for NO2
0
Hamilton Downtown graph for SO2
.26
Hamilton Downtown graph for CO
41
Hamilton Mountain graph for O3
5
Hamilton Mountain graph for PM2.5
3
Hamilton Mountain graph for NO2
0
Hamilton Mountain graph for SO2
 
9
Hamilton West graph for O3
7
Hamilton West graph for PM2.5
26
Hamilton West graph for NO2
   
41
Parry Sound graph for O3
5
Parry Sound graph for PM2.5
2
Parry Sound graph for NO2
   
20
Guelph graph for O3
10
Guelph graph for PM2.5
15
Guelph graph for NO2
   
10
Brantford graph for O3
7
Brantford graph for PM2.5
4
Brantford graph for NO2
   
37
Kitchener graph for O3
8
Kitchener graph for PM2.5
6
Kitchener graph for NO2
   
29
Sudbury graph for O3
8
Sudbury graph for PM2.5
12
Sudbury graph for NO2
0
Sudbury graph for SO2
 
36
Port Stanley graph for O3
3
Port Stanley graph for PM2.5
2
Port Stanley graph for NO2
   
2
London graph for O3
9
London graph for PM2.5
14
London graph for NO2
   
42
Tiverton graph for O3
6
Tiverton graph for PM2.5
3
Tiverton graph for NO2
   
34
Grand Bend graph for O3
3
Grand Bend graph for PM2.5
4
Grand Bend graph for NO2
   
32
Chatham graph for O3
10
Chatham graph for PM2.5
9
Chatham graph for NO2
   
29
Sarnia graph for O3
12
Sarnia graph for PM2.5
13
Sarnia graph for NO2
1
Sarnia graph for SO2
 
28
Windsor Downtown graph for O3
8
Windsor Downtown graph for PM2.5
14
Windsor Downtown graph for NO2
1
Windsor Downtown graph for SO2
.23
Windsor Downtown graph for CO
34
Windsor West graph for O3
9
Windsor West graph for PM2.5
6
Windsor West graph for NO2
0
Windsor West graph for SO2
 
48
Sault Ste Marie graph for O3
11
Sault Ste Marie graph for PM2.5
7
Sault Ste Marie graph for NO2
0
Sault Ste Marie graph for SO2
 
24
Thunder Bay graph for O3
15
Thunder Bay graph for PM2.5
16
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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