Pollutant Concentrations for May 20, 2019, 12:00 pm EDT

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Air Pollutant 1-Hour Concentrations For May 20, 2019, 12:00 pm EDT
Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
24
Barrie graph for O3
0
Barrie graph for PM2.5
1.6
Barrie graph for NO2
   
38
Belleville graph for O3
11
Belleville graph for PM2.5
1.9
Belleville graph for NO2
   
28
Brampton graph for O3
0
Brampton graph for PM2.5
1.2
Brampton graph for NO2
   
29
Brantford graph for O3
5
Brantford graph for PM2.5
1.9
Brantford graph for NO2
   
28
Burlington graph for O3
2
Burlington graph for PM2.5
3.8
Burlington graph for NO2
   
23
Chatham graph for O3
1
Chatham graph for PM2.5
2.6
Chatham graph for NO2
   
48
Cornwall graph for O3
7
Cornwall graph for PM2.5
1.1
Cornwall graph for NO2
   
23
Dorset graph for O3
1
Dorset graph for PM2.5
     
25
Grand Bend graph for O3
0
Grand Bend graph for PM2.5
.7
Grand Bend graph for NO2
   
23
Guelph graph for O3
2
Guelph graph for PM2.5
1
Guelph graph for NO2
   
N/A
Hamilton Downtown graph for O3
10
Hamilton Downtown graph for PM2.5
2.8
Hamilton Downtown graph for NO2
.6
Hamilton Downtown graph for SO2
.14
Hamilton Downtown graph for CO
30
Hamilton Mountain graph for O3
6
Hamilton Mountain graph for PM2.5
1.6
Hamilton Mountain graph for NO2
.2
Hamilton Mountain graph for SO2
 
29
Hamilton West graph for O3
5
Hamilton West graph for PM2.5
2.7
Hamilton West graph for NO2
   
43
Kingston graph for O3
5
Kingston graph for PM2.5
1.6
Kingston graph for NO2
   
24
Kitchener graph for O3
3
Kitchener graph for PM2.5
1.3
Kitchener graph for NO2
   
25
London graph for O3
6
London graph for PM2.5
2
London graph for NO2
   
29
Milton graph for O3
3
Milton graph for PM2.5
1.9
Milton graph for NO2
.8
Milton graph for SO2
 
30
Mississauga graph for O3
2
Mississauga graph for PM2.5
1.7
Mississauga graph for NO2
   
27
Newmarket  graph for O3
2
Newmarket  graph for PM2.5
.4
Newmarket  graph for NO2
   
23
North Bay graph for O3
2
North Bay graph for PM2.5
.8
North Bay graph for NO2
   
30
Oakville  graph for O3
3
Oakville  graph for PM2.5
2.2
Oakville  graph for NO2
   
30
Oshawa graph for O3
2
Oshawa graph for PM2.5
1
Oshawa graph for NO2
   
45
Ottawa Downtown graph for O3
10
Ottawa Downtown graph for PM2.5
2.4
Ottawa Downtown graph for NO2
.1
Ottawa Downtown graph for SO2
.13
Ottawa Downtown graph for CO
22
Parry Sound graph for O3
6
Parry Sound graph for PM2.5
.8
Parry Sound graph for NO2
   
31
Petawawa graph for O3
3
Petawawa graph for PM2.5
     
32
Peterborough graph for O3
4
Peterborough graph for PM2.5
.9
Peterborough graph for NO2
   
31
Port Stanley graph for O3
4
Port Stanley graph for PM2.5
2.3
Port Stanley graph for NO2
   
27
Sarnia graph for O3
0
Sarnia graph for PM2.5
.9
Sarnia graph for NO2
.3
Sarnia graph for SO2
 
30
Sault Ste Marie graph for O3
2
Sault Ste Marie graph for PM2.5
.9
Sault Ste Marie graph for NO2
0
Sault Ste Marie graph for SO2
 
30
St. Catharines graph for O3
7
St. Catharines graph for PM2.5
1.7
St. Catharines graph for NO2
   
27
Sudbury graph for O3
2
Sudbury graph for PM2.5
1.3
Sudbury graph for NO2
.5
Sudbury graph for SO2
 
29
Thunder Bay graph for O3
1
Thunder Bay graph for PM2.5
.9
Thunder Bay graph for NO2
   
23
Tiverton graph for O3
1
Tiverton graph for PM2.5
N/A
Tiverton graph for NO2
   
32
Toronto Downtown graph for O3
2
Toronto Downtown graph for PM2.5
2.8
Toronto Downtown graph for NO2
   
28
Toronto East graph for O3
6
Toronto East graph for PM2.5
1.8
Toronto East graph for NO2
   
30
Toronto North graph for O3
1
Toronto North graph for PM2.5
2.2
Toronto North graph for NO2
.1
Toronto North graph for SO2
 
28
Toronto West graph for O3
6
Toronto West graph for PM2.5
2.5
Toronto West graph for NO2
.3
Toronto West graph for SO2
.16
Toronto West graph for CO
19
Windsor Downtown graph for O3
5
Windsor Downtown graph for PM2.5
4.9
Windsor Downtown graph for NO2
0
Windsor Downtown graph for SO2
.15
Windsor Downtown graph for CO
20
Windsor West graph for O3
0
Windsor West graph for PM2.5
4.4
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 = 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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