Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 12 |
5 |
3.7 |
||
| Sault Ste. Marie | 9 |
4 |
1.9 |
0 |
|
| Windsor West | 13 |
6 |
7.4 |
0.1 |
|
| Windsor Downtown | 16 |
6 |
8.8 |
0.2 |
0.22 |
| Sarnia | 22 |
8 |
3.7 |
0 |
|
| Chatham | 19 |
6 |
1.7 |
||
| Grand Bend | N/A |
N/A |
N/A |
||
| Tiverton | 19 |
5 |
|||
| London | 5 |
9 |
5.7 |
||
| Port Stanley | 16 |
9 |
2.9 |
||
| Sudbury | N/A |
N/A |
N/A |
N/A |
|
| Kitchener | 15 |
5 |
2 |
||
| Brantford | 16 |
5 |
2.1 |
||
| Guelph | 18 |
6 |
1.3 |
||
| Parry Sound | 22 |
2 |
0.9 |
||
| Hamilton West | 20 |
6 |
1.9 |
||
| Hamilton Mountain | 24 |
5 |
2 |
0.3 |
|
| Milton | 22 |
7 |
1.7 |
0.3 |
|
| Hamilton Downtown | 19 |
6 |
2.9 |
0.6 |
0.18 |
| Burlington | 19 |
6 |
4.1 |
||
| Brampton | 18 |
5 |
2 |
||
| Barrie | 11 |
5 |
1.1 |
||
| Oakville | 19 |
6 |
2.7 |
||
| Mississauga | 18 |
5 |
2.9 |
||
| Toronto West | 11 |
6 |
8 |
0 |
0.19 |
| Newmarket | 17 |
5 |
1 |
||
| Toronto North | 16 |
6 |
5 |
0 |
|
| North Bay | 14 |
4 |
0.3 |
||
| Toronto Downtown | 14 |
7 |
11.6 |
||
| Toronto East | 14 |
6 |
5 |
||
| St. Catharines | 17 |
6 |
6.6 |
||
| Dorset | 16 |
3 |
|||
| Oshawa | 14 |
5 |
1.1 |
||
| Peterborough | 16 |
3 |
0.7 |
||
| Belleville | 18 |
4 |
1.2 |
||
| Kingston | 16 |
6 |
1.2 |
||
| Ottawa Downtown | 25 |
7 |
1.3 |
||
| Cornwall | 27 |
10 |
0.7 |
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.
