Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 17 |
8 |
3.2 |
||
| Belleville | 17 |
6 |
6.7 |
||
| Brampton | 20 |
6 |
9.5 |
||
| Brantford | 21 |
11 |
1.8 |
||
| Burlington | 29 |
13 |
17.2 |
||
| Chatham | 23 |
6 |
0.9 |
||
| Cornwall | 9 |
10 |
7 |
||
| Dorset | 10 |
5 |
|||
| Grand Bend | 17 |
6 |
1 |
||
| Guelph | 31 |
10 |
4.4 |
||
| Hamilton Downtown | 24 |
10 |
8.8 |
0.6 |
0.31 |
| Hamilton Mountain | 37 |
10 |
4.1 |
1 |
|
| Hamilton West | 8 |
11 |
23.7 |
||
| Kingston | 10 |
8 |
6.5 |
||
| Kitchener | 25 |
8 |
3.3 |
||
| London | 19 |
7 |
4.6 |
||
| Milton | 31 |
12 |
15.8 |
0.2 |
|
| Mississauga | 21 |
10 |
10.6 |
||
| Newmarket | 24 |
8 |
4.4 |
||
| North Bay | 16 |
4 |
3.4 |
||
| Oakville | 40 |
12 |
12 |
||
| Oshawa | 28 |
6 |
2.6 |
||
| Ottawa Downtown | 15 |
4 |
3 |
||
| Parry Sound | 21 |
4 |
1.4 |
||
| Peterborough | 18 |
5 |
2.6 |
||
| Port Stanley | 24 |
7 |
2.6 |
||
| Sarnia | 24 |
6 |
1.7 |
0 |
|
| Sault Ste. Marie | 20 |
4 |
1 |
0 |
|
| St. Catharines | 20 |
11 |
10.9 |
||
| Sudbury | 13 |
6 |
9.3 |
0.1 |
|
| Thunder Bay | 15 |
6 |
2.8 |
||
| Tiverton | 21 |
6 |
|||
| Toronto Downtown | 36 |
8 |
10.6 |
||
| Toronto East | 31 |
7 |
4.4 |
||
| Toronto North | 32 |
14 |
10.5 |
0 |
|
| Toronto West | 24 |
11 |
19.3 |
0 |
0.34 |
| Windsor Downtown | 27 |
5 |
7.9 |
3.4 |
0.21 |
| Windsor West | 24 |
6 |
8 |
3.4 |
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.
