Pollutant Concentrations for May 19, 2019, 5:00 pm EDT

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Air Pollutant 1-Hour Concentrations For May 19, 2019, 5:00 pm EDT
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
32
Cornwall graph for O3
5
Cornwall graph for PM2.5
1.5
Cornwall graph for NO2
   
36
Ottawa Downtown graph for O3
2
Ottawa Downtown graph for PM2.5
1.6
Ottawa Downtown graph for NO2
.1
Ottawa Downtown graph for SO2
.14
Ottawa Downtown graph for CO
49
Kingston graph for O3
11
Kingston graph for PM2.5
2.1
Kingston graph for NO2
   
46
Belleville graph for O3
16
Belleville graph for PM2.5
2.2
Belleville graph for NO2
   
34
Petawawa graph for O3
3
Petawawa graph for PM2.5
     
52
Peterborough graph for O3
12
Peterborough graph for PM2.5
2.2
Peterborough graph for NO2
   
49
Oshawa graph for O3
4
Oshawa graph for PM2.5
2.3
Oshawa graph for NO2
   
32
Dorset graph for O3
9
Dorset graph for PM2.5
     
51
St. Catharines graph for O3
45
St. Catharines graph for PM2.5
1.6
St. Catharines graph for NO2
   
50
Toronto East graph for O3
7
Toronto East graph for PM2.5
2.7
Toronto East graph for NO2
   
50
Toronto Downtown graph for O3
11
Toronto Downtown graph for PM2.5
6.5
Toronto Downtown graph for NO2
   
33
North Bay graph for O3
5
North Bay graph for PM2.5
1.2
North Bay graph for NO2
   
53
Toronto North graph for O3
21
Toronto North graph for PM2.5
4.1
Toronto North graph for NO2
.9
Toronto North graph for SO2
 
52
Newmarket  graph for O3
12
Newmarket  graph for PM2.5
3.1
Newmarket  graph for NO2
   
55
Toronto West graph for O3
7
Toronto West graph for PM2.5
4.3
Toronto West graph for NO2
1
Toronto West graph for SO2
.26
Toronto West graph for CO
46
Mississauga graph for O3
12
Mississauga graph for PM2.5
3
Mississauga graph for NO2
   
45
Oakville  graph for O3
9
Oakville  graph for PM2.5
6.5
Oakville  graph for NO2
   
45
Barrie graph for O3
N/A
Barrie graph for PM2.5
4.6
Barrie graph for NO2
   
53
Brampton graph for O3
17
Brampton graph for PM2.5
5.1
Brampton graph for NO2
   
45
Burlington graph for O3
13
Burlington graph for PM2.5
3.2
Burlington graph for NO2
   
N/A
Hamilton Downtown graph for O3
19
Hamilton Downtown graph for PM2.5
30
Hamilton Downtown graph for NO2
123.7
Hamilton Downtown graph for SO2
.66
Hamilton Downtown graph for CO
43
Milton graph for O3
12
Milton graph for PM2.5
9.9
Milton graph for NO2
3.5
Milton graph for SO2
 
37
Hamilton Mountain graph for O3
23
Hamilton Mountain graph for PM2.5
17.7
Hamilton Mountain graph for NO2
44.3
Hamilton Mountain graph for SO2
 
38
Hamilton West graph for O3
34
Hamilton West graph for PM2.5
15.3
Hamilton West graph for NO2
   
35
Parry Sound graph for O3
5
Parry Sound graph for PM2.5
1.5
Parry Sound graph for NO2
   
45
Guelph graph for O3
17
Guelph graph for PM2.5
1.5
Guelph graph for NO2
   
47
Brantford graph for O3
13
Brantford graph for PM2.5
1.4
Brantford graph for NO2
   
47
Kitchener graph for O3
12
Kitchener graph for PM2.5
2
Kitchener graph for NO2
   
23
Sudbury graph for O3
3
Sudbury graph for PM2.5
1.6
Sudbury graph for NO2
.8
Sudbury graph for SO2
 
50
Port Stanley graph for O3
14
Port Stanley graph for PM2.5
1.4
Port Stanley graph for NO2
   
45
London graph for O3
12
London graph for PM2.5
1.8
London graph for NO2
   
50
Tiverton graph for O3
21
Tiverton graph for PM2.5
N/A
Tiverton graph for NO2
   
49
Grand Bend graph for O3
8
Grand Bend graph for PM2.5
1
Grand Bend graph for NO2
   
43
Chatham graph for O3
10
Chatham graph for PM2.5
3.4
Chatham graph for NO2
   
51
Sarnia graph for O3
8
Sarnia graph for PM2.5
1
Sarnia graph for NO2
1.1
Sarnia graph for SO2
 
43
Windsor Downtown graph for O3
4
Windsor Downtown graph for PM2.5
8.7
Windsor Downtown graph for NO2
.1
Windsor Downtown graph for SO2
.32
Windsor Downtown graph for CO
44
Windsor West graph for O3
9
Windsor West graph for PM2.5
9.1
Windsor West graph for NO2
.1
Windsor West graph for SO2
 
26
Sault Ste Marie graph for O3
1
Sault Ste Marie graph for PM2.5
.6
Sault Ste Marie graph for NO2
0
Sault Ste Marie graph for SO2
 
27
Thunder Bay graph for O3
1
Thunder Bay graph for PM2.5
1.4
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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