Pollutant Concentrations for May 23, 2022, 3:00 am EDT

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Air Pollutant 1-Hour Concentrations For May 23, 2022, 3:00 am EDT
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
N/A
Barrie graph for O3
9
Barrie graph for PM2.5
2
Barrie graph for NO2
   
18
Belleville graph for O3
3
Belleville graph for PM2.5
1
Belleville graph for NO2
   
21
Brampton graph for O3
5
Brampton graph for PM2.5
1
Brampton graph for NO2
   
20
Brantford graph for O3
4
Brantford graph for PM2.5
3
Brantford graph for NO2
   
22
Burlington graph for O3
0
Burlington graph for PM2.5
3
Burlington graph for NO2
   
17
Chatham graph for O3
2
Chatham graph for PM2.5
3
Chatham graph for NO2
   
22
Cornwall graph for O3
0
Cornwall graph for PM2.5
1
Cornwall graph for NO2
   
5
Dorset graph for O3
1
Dorset graph for PM2.5
     
26
Grand Bend graph for O3
0
Grand Bend graph for PM2.5
2
Grand Bend graph for NO2
   
24
Guelph graph for O3
2
Guelph graph for PM2.5
3
Guelph graph for NO2
   
20
Hamilton Downtown graph for O3
5
Hamilton Downtown graph for PM2.5
3
Hamilton Downtown graph for NO2
1
Hamilton Downtown graph for SO2
.14
Hamilton Downtown graph for CO
20
Hamilton Mountain graph for O3
1
Hamilton Mountain graph for PM2.5
4
Hamilton Mountain graph for NO2
1
Hamilton Mountain graph for SO2
 
20
Hamilton West graph for O3
4
Hamilton West graph for PM2.5
4
Hamilton West graph for NO2
   
9
Kingston graph for O3
3
Kingston graph for PM2.5
4
Kingston graph for NO2
   
25
Kitchener graph for O3
0
Kitchener graph for PM2.5
1
Kitchener graph for NO2
   
11
London graph for O3
9
London graph for PM2.5
8
London graph for NO2
   
19
Milton graph for O3
4
Milton graph for PM2.5
2
Milton graph for NO2
1
Milton graph for SO2
 
21
Mississauga graph for O3
1
Mississauga graph for PM2.5
4
Mississauga graph for NO2
   
21
Newmarket graph for O3
4
Newmarket graph for PM2.5
N/A
Newmarket graph for NO2
   
8
North Bay graph for O3
4
North Bay graph for PM2.5
3
North Bay graph for NO2
   
21
Oakville graph for O3
3
Oakville graph for PM2.5
2
Oakville graph for NO2
   
21
Oshawa graph for O3
6
Oshawa graph for PM2.5
1
Oshawa graph for NO2
   
15
Ottawa Downtown graph for O3
1
Ottawa Downtown graph for PM2.5
6
Ottawa Downtown graph for NO2
0
Ottawa Downtown graph for SO2
 
11
Parry Sound graph for O3
7
Parry Sound graph for PM2.5
5
Parry Sound graph for NO2
   
N/A
Peterborough graph for O3
N/A
Peterborough graph for PM2.5
N/A
Peterborough graph for NO2
   
14
Port Stanley graph for O3
2
Port Stanley graph for PM2.5
4
Port Stanley graph for NO2
   
29
Sarnia graph for O3
1
Sarnia graph for PM2.5
1
Sarnia graph for NO2
0
Sarnia graph for SO2
 
17
Sault Ste. Marie graph for O3
5
Sault Ste. Marie graph for PM2.5
12
Sault Ste. Marie graph for NO2
1
Sault Ste. Marie graph for SO2
 
23
St. Catharines graph for O3
5
St. Catharines graph for PM2.5
3
St. Catharines graph for NO2
   
13
Sudbury graph for O3
3
Sudbury graph for PM2.5
9
Sudbury graph for NO2
0
Sudbury graph for SO2
 
13
Thunder Bay graph for O3
7
Thunder Bay graph for PM2.5
5
Thunder Bay graph for NO2
   
23
Tiverton graph for O3
1
Tiverton graph for PM2.5
     
17
Toronto Downtown graph for O3
5
Toronto Downtown graph for PM2.5
9
Toronto Downtown graph for NO2
   
21
Toronto East graph for O3
4
Toronto East graph for PM2.5
5
Toronto East graph for NO2
   
16
Toronto North graph for O3
8
Toronto North graph for PM2.5
4
Toronto North graph for NO2
0
Toronto North graph for SO2
 
18
Toronto West graph for O3
3
Toronto West graph for PM2.5
7
Toronto West graph for NO2
0
Toronto West graph for SO2
.16
Toronto West graph for CO
19
Windsor Downtown graph for O3
3
Windsor Downtown graph for PM2.5
6
Windsor Downtown graph for NO2
0
Windsor Downtown graph for SO2
.16
Windsor Downtown graph for CO
18
Windsor West graph for O3
4
Windsor West graph for PM2.5
5
Windsor West graph for NO2
1
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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