Pollutant Concentrations for May 18, 2024, 3:00 pm EDT

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Air Pollutant 1-Hour Concentrations For May 18, 2024, 3:00 pm EDT
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
34
Thunder Bay graph for O3
5
Thunder Bay graph for PM2.5
3.8
Thunder Bay graph for NO2
   
41
Sault Ste. Marie graph for O3
8
Sault Ste. Marie graph for PM2.5
1.5
Sault Ste. Marie graph for NO2
0
Sault Ste. Marie graph for SO2
 
47
Windsor West graph for O3
6
Windsor West graph for PM2.5
2
Windsor West graph for NO2
0.1
Windsor West graph for SO2
 
43
Windsor Downtown graph for O3
5
Windsor Downtown graph for PM2.5
5.1
Windsor Downtown graph for NO2
0
Windsor Downtown graph for SO2
0.22
Windsor Downtown graph for CO
50
Sarnia graph for O3
14
Sarnia graph for PM2.5
7.8
Sarnia graph for NO2
7.6
Sarnia graph for SO2
 
45
Chatham graph for O3
8
Chatham graph for PM2.5
3
Chatham graph for NO2
   
40
Grand Bend graph for O3
8
Grand Bend graph for PM2.5
2.7
Grand Bend graph for NO2
   
38
Tiverton graph for O3
7
Tiverton graph for PM2.5
     
43
London graph for O3
5
London graph for PM2.5
3.4
London graph for NO2
   
42
Port Stanley graph for O3
7
Port Stanley graph for PM2.5
2.1
Port Stanley graph for NO2
   
50
Sudbury graph for O3
7
Sudbury graph for PM2.5
1.1
Sudbury graph for NO2
0
Sudbury graph for SO2
 
43
Kitchener graph for O3
8
Kitchener graph for PM2.5
2.6
Kitchener graph for NO2
   
50
Brantford graph for O3
12
Brantford graph for PM2.5
4.1
Brantford graph for NO2
   
45
Guelph graph for O3
8
Guelph graph for PM2.5
2
Guelph graph for NO2
   
39
Parry Sound graph for O3
7
Parry Sound graph for PM2.5
3.6
Parry Sound graph for NO2
   
32
Hamilton West graph for O3
12
Hamilton West graph for PM2.5
11
Hamilton West graph for NO2
   
35
Hamilton Mountain graph for O3
12
Hamilton Mountain graph for PM2.5
8.2
Hamilton Mountain graph for NO2
17
Hamilton Mountain graph for SO2
 
39
Milton graph for O3
10
Milton graph for PM2.5
5.9
Milton graph for NO2
0.5
Milton graph for SO2
 
31
Hamilton Downtown graph for O3
12
Hamilton Downtown graph for PM2.5
11.9
Hamilton Downtown graph for NO2
29
Hamilton Downtown graph for SO2
0.58
Hamilton Downtown graph for CO
40
Burlington graph for O3
8
Burlington graph for PM2.5
3.3
Burlington graph for NO2
   
40
Brampton graph for O3
7
Brampton graph for PM2.5
3.4
Brampton graph for NO2
   
36
Barrie graph for O3
4
Barrie graph for PM2.5
1.5
Barrie graph for NO2
   
29
Oakville graph for O3
14
Oakville graph for PM2.5
12
Oakville graph for NO2
   
33
Mississauga graph for O3
7
Mississauga graph for PM2.5
2
Mississauga graph for NO2
   
34
Toronto West graph for O3
8
Toronto West graph for PM2.5
2.8
Toronto West graph for NO2
0
Toronto West graph for SO2
0.2
Toronto West graph for CO
37
Newmarket graph for O3
4
Newmarket graph for PM2.5
1.8
Newmarket graph for NO2
   
36
Toronto North graph for O3
7
Toronto North graph for PM2.5
2.3
Toronto North graph for NO2
0
Toronto North graph for SO2
 
48
North Bay graph for O3
4
North Bay graph for PM2.5
0.9
North Bay graph for NO2
   
26
Toronto Downtown graph for O3
8
Toronto Downtown graph for PM2.5
15.1
Toronto Downtown graph for NO2
   
32
Toronto East graph for O3
7
Toronto East graph for PM2.5
2.6
Toronto East graph for NO2
   
36
St. Catharines graph for O3
7
St. Catharines graph for PM2.5
2.4
St. Catharines graph for NO2
   
44
Dorset graph for O3
4
Dorset graph for PM2.5
     
31
Oshawa graph for O3
8
Oshawa graph for PM2.5
1.7
Oshawa graph for NO2
   
41
Peterborough graph for O3
5
Peterborough graph for PM2.5
1.4
Peterborough graph for NO2
   
38
Belleville graph for O3
5
Belleville graph for PM2.5
1.6
Belleville graph for NO2
   
38
Kingston graph for O3
5
Kingston graph for PM2.5
1.4
Kingston graph for NO2
   
38
Ottawa Downtown graph for O3
8
Ottawa Downtown graph for PM2.5
0.8
Ottawa Downtown graph for NO2
   
48
Cornwall graph for O3
9
Cornwall graph for PM2.5
2.3
Cornwall 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 = 40 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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