Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 26 |
13 |
6.4 |
||
| Belleville | 29 |
6 |
2.5 |
||
| Brampton | 36 |
12 |
3.8 |
||
| Brantford | 9 |
0 |
4.4 |
||
| Burlington | 35 |
11 |
7.7 |
||
| Chatham | 29 |
13 |
8.8 |
||
| Cornwall | 38 |
5 |
2.2 |
||
| Dorset | 12 |
7 |
|||
| Grand Bend | 36 |
12 |
2.1 |
||
| Guelph | 14 |
18 |
10.9 |
||
| Hamilton Downtown | 40 |
8 |
4.4 |
0.3 |
0.18 |
| Hamilton Mountain | 42 |
10 |
2.3 |
0.3 |
|
| Hamilton West | 31 |
12 |
5.3 |
||
| Kingston | 40 |
4 |
1.7 |
||
| Kitchener | 37 |
14 |
3.5 |
||
| London | 19 |
15 |
7.5 |
||
| Milton | 38 |
13 |
7.8 |
0.1 |
|
| Mississauga | 30 |
11 |
3.5 |
||
| Newmarket | 31 |
11 |
5.2 |
||
| North Bay | 35 |
11 |
1.4 |
||
| Oakville | 36 |
13 |
4.3 |
||
| Oshawa | 1 |
8 |
6 |
||
| Ottawa Downtown | 38 |
5 |
4.3 |
||
| Parry Sound | 36 |
10 |
1.7 |
||
| Peterborough | 18 |
7 |
7.2 |
||
| Port Stanley | 47 |
7 |
1.7 |
||
| Sarnia | 28 |
16 |
8.5 |
0.8 |
|
| Sault Ste. Marie | 19 |
3 |
2.3 |
0 |
|
| St. Catharines | 38 |
6 |
2.3 |
||
| Sudbury | 29 |
2 |
0.7 |
0.1 |
|
| Thunder Bay | 23 |
1 |
2.3 |
||
| Tiverton | 41 |
11 |
|||
| Toronto Downtown | 31 |
13 |
14.3 |
||
| Toronto East | 25 |
12 |
14.3 |
||
| Toronto North | 22 |
13 |
14.8 |
0.1 |
|
| Toronto West | 26 |
10 |
9.6 |
0.1 |
0.24 |
| Windsor Downtown | 18 |
17 |
11.6 |
0 |
0.25 |
| Windsor West | 4 |
16 |
14.3 |
0 |
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.
