Pollutant Concentrations for September 21, 2019, 9:00 pm EDT

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Air Pollutant 1-Hour Concentrations For September 21, 2019, 9:00 pm EDT
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
52
Barrie graph for O3
17
Barrie graph for PM2.5
5.3
Barrie graph for NO2
   
50
Belleville graph for O3
20
Belleville graph for PM2.5
2.3
Belleville graph for NO2
   
43
Brampton graph for O3
12
Brampton graph for PM2.5
7.9
Brampton graph for NO2
   
44
Brantford graph for O3
14
Brantford graph for PM2.5
2.9
Brantford graph for NO2
   
40
Burlington graph for O3
9
Burlington graph for PM2.5
7.2
Burlington graph for NO2
   
42
Chatham graph for O3
14
Chatham graph for PM2.5
3.8
Chatham graph for NO2
   
42
Cornwall graph for O3
13
Cornwall graph for PM2.5
4.2
Cornwall graph for NO2
   
23
Dorset graph for O3
12
Dorset graph for PM2.5
     
54
Grand Bend graph for O3
13
Grand Bend graph for PM2.5
2.2
Grand Bend graph for NO2
   
49
Guelph graph for O3
23
Guelph graph for PM2.5
3.8
Guelph graph for NO2
   
53
Hamilton Downtown graph for O3
N/A
Hamilton Downtown graph for PM2.5
5.4
Hamilton Downtown graph for NO2
1.8
Hamilton Downtown graph for SO2
.23
Hamilton Downtown graph for CO
53
Hamilton Mountain graph for O3
35
Hamilton Mountain graph for PM2.5
3.6
Hamilton Mountain graph for NO2
.8
Hamilton Mountain graph for SO2
 
52
Hamilton West graph for O3
16
Hamilton West graph for PM2.5
3.4
Hamilton West graph for NO2
   
42
Kingston graph for O3
14
Kingston graph for PM2.5
5.7
Kingston graph for NO2
   
52
Kitchener graph for O3
16
Kitchener graph for PM2.5
3.8
Kitchener graph for NO2
   
N/A
London graph for O3
N/A
London graph for PM2.5
N/A
London graph for NO2
   
32
Milton graph for O3
14
Milton graph for PM2.5
17.5
Milton graph for NO2
N/A
Milton graph for SO2
 
42
Mississauga graph for O3
11
Mississauga graph for PM2.5
6.8
Mississauga graph for NO2
   
50
Newmarket  graph for O3
13
Newmarket  graph for PM2.5
3.6
Newmarket  graph for NO2
   
45
North Bay graph for O3
11
North Bay graph for PM2.5
7
North Bay graph for NO2
   
36
Oakville  graph for O3
15
Oakville  graph for PM2.5
13.4
Oakville  graph for NO2
   
35
Oshawa graph for O3
N/A
Oshawa graph for PM2.5
4.2
Oshawa graph for NO2
   
51
Ottawa Downtown graph for O3
10
Ottawa Downtown graph for PM2.5
4
Ottawa Downtown graph for NO2
0
Ottawa Downtown graph for SO2
.2
Ottawa Downtown graph for CO
45
Parry Sound graph for O3
20
Parry Sound graph for PM2.5
3.5
Parry Sound graph for NO2
   
19
Petawawa graph for O3
8
Petawawa graph for PM2.5
     
49
Peterborough graph for O3
14
Peterborough graph for PM2.5
3.1
Peterborough graph for NO2
   
62
Port Stanley graph for O3
21
Port Stanley graph for PM2.5
1.2
Port Stanley graph for NO2
   
40
Sarnia graph for O3
14
Sarnia graph for PM2.5
6.9
Sarnia graph for NO2
2.3
Sarnia graph for SO2
 
37
Sault Ste Marie graph for O3
10
Sault Ste Marie graph for PM2.5
4
Sault Ste Marie graph for NO2
.1
Sault Ste Marie graph for SO2
 
53
St. Catharines graph for O3
16
St. Catharines graph for PM2.5
5.3
St. Catharines graph for NO2
   
47
Sudbury graph for O3
12
Sudbury graph for PM2.5
7.4
Sudbury graph for NO2
.5
Sudbury graph for SO2
 
21
Thunder Bay graph for O3
7
Thunder Bay graph for PM2.5
4
Thunder Bay graph for NO2
   
66
Tiverton graph for O3
15
Tiverton graph for PM2.5
N/A
Tiverton graph for NO2
   
39
Toronto Downtown graph for O3
12
Toronto Downtown graph for PM2.5
18.7
Toronto Downtown graph for NO2
   
46
Toronto East graph for O3
7
Toronto East graph for PM2.5
4.4
Toronto East graph for NO2
   
40
Toronto North graph for O3
12
Toronto North graph for PM2.5
7.7
Toronto North graph for NO2
0
Toronto North graph for SO2
 
42
Toronto West graph for O3
14
Toronto West graph for PM2.5
13
Toronto West graph for NO2
.2
Toronto West graph for SO2
.32
Toronto West graph for CO
31
Windsor Downtown graph for O3
10
Windsor Downtown graph for PM2.5
6.2
Windsor Downtown graph for NO2
0
Windsor Downtown graph for SO2
.24
Windsor Downtown graph for CO
31
Windsor West graph for O3
15
Windsor West graph for PM2.5
4.2
Windsor West graph for NO2
.4
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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