Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 14 |
12 |
5.1 |
||
| Sault Ste. Marie | 14 |
5 |
3.7 |
0 |
|
| Windsor West | 4 |
14 |
16.9 |
0 |
|
| Windsor Downtown | 8 |
8 |
14 |
0.1 |
0.27 |
| Sarnia | 22 |
6 |
1.7 |
0 |
|
| Chatham | 14 |
5 |
2.5 |
||
| Grand Bend | N/A |
N/A |
N/A |
||
| Tiverton | 21 |
5 |
|||
| London | 7 |
6 |
6.5 |
||
| Port Stanley | 18 |
6 |
2.7 |
||
| Sudbury | 21 |
3 |
2.5 |
0 |
|
| Kitchener | 19 |
5 |
2.3 |
||
| Brantford | 10 |
5 |
2.6 |
||
| Guelph | 15 |
4 |
2.1 |
||
| Parry Sound | 28 |
3 |
0.8 |
||
| Hamilton West | 18 |
4 |
4.2 |
||
| Hamilton Mountain | 25 |
3 |
2 |
0 |
|
| Milton | 27 |
3 |
0.4 |
0.5 |
|
| Hamilton Downtown | 21 |
3 |
2.1 |
0.1 |
0.16 |
| Burlington | 25 |
3 |
2.9 |
||
| Brampton | 26 |
3 |
1 |
||
| Barrie | 21 |
4 |
0.5 |
||
| Oakville | 24 |
3 |
2.2 |
||
| Mississauga | 22 |
3 |
4.8 |
||
| Toronto West | 16 |
3 |
5.6 |
0 |
0.12 |
| Newmarket | 21 |
3 |
2.2 |
||
| Toronto North | 23 |
3 |
1.2 |
0 |
|
| North Bay | 26 |
3 |
0 |
||
| Toronto Downtown | 22 |
3 |
4.3 |
||
| Toronto East | 22 |
3 |
2.1 |
||
| St. Catharines | 14 |
3 |
5.8 |
||
| Dorset | 9 |
3 |
|||
| Oshawa | 21 |
3 |
0.6 |
||
| Peterborough | 20 |
3 |
0.3 |
||
| Belleville | 16 |
5 |
2.1 |
||
| Kingston | 21 |
5 |
1 |
||
| Ottawa Downtown | 20 |
6 |
1.2 |
||
| Cornwall | 31 |
8 |
0.9 |
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.
