Pollutant Concentrations for May 5, 2024, 9:00 am EDT

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Air Pollutant 1-Hour Concentrations For May 5, 2024, 9:00 am EDT
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
18
Barrie graph for O3
3
Barrie graph for PM2.5
2.4
Barrie graph for NO2
   
26
Belleville graph for O3
1
Belleville graph for PM2.5
1
Belleville graph for NO2
   
18
Brampton graph for O3
3
Brampton graph for PM2.5
3.9
Brampton graph for NO2
   
13
Brantford graph for O3
0
Brantford graph for PM2.5
2.3
Brantford graph for NO2
   
20
Burlington graph for O3
2
Burlington graph for PM2.5
2.6
Burlington graph for NO2
   
13
Chatham graph for O3
9
Chatham graph for PM2.5
3.9
Chatham graph for NO2
   
26
Cornwall graph for O3
3
Cornwall graph for PM2.5
0.9
Cornwall graph for NO2
   
26
Dorset graph for O3
1
Dorset graph for PM2.5
     
13
Grand Bend graph for O3
7
Grand Bend graph for PM2.5
2.1
Grand Bend graph for NO2
   
13
Guelph graph for O3
5
Guelph graph for PM2.5
1.4
Guelph graph for NO2
   
5
Hamilton Downtown graph for O3
5
Hamilton Downtown graph for PM2.5
19.4
Hamilton Downtown graph for NO2
1.7
Hamilton Downtown graph for SO2
0.22
Hamilton Downtown graph for CO
5
Hamilton Mountain graph for O3
11
Hamilton Mountain graph for PM2.5
12.5
Hamilton Mountain graph for NO2
0.8
Hamilton Mountain graph for SO2
 
11
Hamilton West graph for O3
5
Hamilton West graph for PM2.5
10.6
Hamilton West graph for NO2
   
26
Kingston graph for O3
1
Kingston graph for PM2.5
1.3
Kingston graph for NO2
   
12
Kitchener graph for O3
4
Kitchener graph for PM2.5
2.4
Kitchener graph for NO2
   
13
London graph for O3
7
London graph for PM2.5
3
London graph for NO2
   
18
Milton graph for O3
5
Milton graph for PM2.5
3.6
Milton graph for NO2
0.2
Milton graph for SO2
 
17
Mississauga graph for O3
2
Mississauga graph for PM2.5
2.3
Mississauga graph for NO2
   
19
Newmarket graph for O3
1
Newmarket graph for PM2.5
3.5
Newmarket graph for NO2
   
28
North Bay graph for O3
3
North Bay graph for PM2.5
4.6
North Bay graph for NO2
   
16
Oakville graph for O3
3
Oakville graph for PM2.5
5.5
Oakville graph for NO2
   
19
Oshawa graph for O3
1
Oshawa graph for PM2.5
2.2
Oshawa graph for NO2
   
28
Ottawa Downtown graph for O3
3
Ottawa Downtown graph for PM2.5
2.3
Ottawa Downtown graph for NO2
   
25
Parry Sound graph for O3
3
Parry Sound graph for PM2.5
1.3
Parry Sound graph for NO2
   
Peterborough graph for O3
1
Peterborough graph for PM2.5
1.3
Peterborough graph for NO2
   
14
Port Stanley graph for O3
5
Port Stanley graph for PM2.5
1.8
Port Stanley graph for NO2
   
7
Sarnia graph for O3
26
Sarnia graph for PM2.5
11.9
Sarnia graph for NO2
1.8
Sarnia graph for SO2
 
33
Sault Ste. Marie graph for O3
2
Sault Ste. Marie graph for PM2.5
1.8
Sault Ste. Marie graph for NO2
0
Sault Ste. Marie graph for SO2
 
16
St. Catharines graph for O3
2
St. Catharines graph for PM2.5
3.2
St. Catharines graph for NO2
   
23
Sudbury graph for O3
4
Sudbury graph for PM2.5
2.2
Sudbury graph for NO2
0
Sudbury graph for SO2
 
17
Thunder Bay graph for O3
2
Thunder Bay graph for PM2.5
1.4
Thunder Bay graph for NO2
   
15
Tiverton graph for O3
7
Tiverton graph for PM2.5
     
8
Toronto Downtown graph for O3
2
Toronto Downtown graph for PM2.5
20.9
Toronto Downtown graph for NO2
   
19
Toronto East graph for O3
1
Toronto East graph for PM2.5
2.5
Toronto East graph for NO2
   
18
Toronto North graph for O3
1
Toronto North graph for PM2.5
2.7
Toronto North graph for NO2
0
Toronto North graph for SO2
 
14
Toronto West graph for O3
3
Toronto West graph for PM2.5
7
Toronto West graph for NO2
0
Toronto West graph for SO2
0.16
Toronto West graph for CO
21
Windsor Downtown graph for O3
18
Windsor Downtown graph for PM2.5
7
Windsor Downtown graph for NO2
0
Windsor Downtown graph for SO2
0.28
Windsor Downtown graph for CO
19
Windsor West graph for O3
17
Windsor West graph for PM2.5
7.8
Windsor West graph for NO2
0
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 = 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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