Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 15 |
3 |
3.4 |
||
| Sault Ste. Marie | 17 |
4 |
4.4 |
0 |
|
| Windsor West | 19 |
3 |
5.6 |
0 |
|
| Windsor Downtown | 23 |
3 |
4.5 |
0 |
N/A |
| Sarnia | 31 |
1 |
0.1 |
0 |
|
| Chatham | 24 |
2 |
0 |
||
| Grand Bend | 23 |
2 |
0.7 |
||
| Tiverton | 14 |
2 |
|||
| London | 15 |
4 |
7.1 |
||
| Port Stanley | 17 |
3 |
1.7 |
||
| Sudbury | 2 |
9 |
14.1 |
0.1 |
|
| Kitchener | 17 |
3 |
3.9 |
||
| Brantford | 34 |
8 |
7.3 |
||
| Guelph | 19 |
3 |
1.1 |
||
| Parry Sound | 10 |
3 |
2.5 |
||
| Hamilton West | 16 |
4 |
8.1 |
||
| Hamilton Mountain | 17 |
4 |
7.4 |
1.8 |
|
| Milton | 22 |
2 |
3.8 |
0 |
|
| Hamilton Downtown | 15 |
4 |
5.7 |
3.3 |
0.2 |
| Burlington | 16 |
3 |
9.5 |
||
| Brampton | 22 |
2 |
2.7 |
||
| Barrie | 9 |
5 |
6.1 |
||
| Oakville | 20 |
3 |
6.6 |
||
| Mississauga | 19 |
2 |
10.4 |
||
| Toronto West | 13 |
2 |
11.1 |
0 |
0.23 |
| Newmarket | 18 |
3 |
3.2 |
||
| Toronto North | 20 |
2 |
3.6 |
0 |
|
| North Bay | 4 |
5 |
7.4 |
||
| Toronto Downtown | 21 |
4 |
7.6 |
||
| Toronto East | 16 |
3 |
6.9 |
||
| St. Catharines | 32 |
4 |
2.8 |
||
| Dorset | 3 |
4 |
|||
| Oshawa | 17 |
3 |
1.4 |
||
| Peterborough | 18 |
3 |
1 |
||
| Belleville | 15 |
7 |
7.1 |
||
| Kingston | 26 |
6 |
4 |
||
| Ottawa Downtown | 11 |
4 |
4.5 |
||
| Cornwall | 18 |
7 |
5.5 |
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.
