Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 3 |
4 |
6 |
||
| Sault Ste. Marie | 18 |
1 |
0.3 |
0 |
|
| Windsor West | 20 |
3 |
1.9 |
0.1 |
|
| Windsor Downtown | 21 |
3 |
1.9 |
0 |
N/A |
| Sarnia | 18 |
2 |
0 |
0.1 |
|
| Chatham | 18 |
4 |
0.4 |
||
| Grand Bend | 15 |
2 |
0.3 |
||
| Tiverton | 18 |
1 |
|||
| London | 16 |
3 |
1 |
||
| Port Stanley | 18 |
4 |
1.4 |
||
| Sudbury | 19 |
1 |
1.7 |
0.1 |
|
| Kitchener | 16 |
2 |
0.8 |
||
| Brantford | 17 |
2 |
0.8 |
||
| Guelph | 17 |
2 |
0.4 |
||
| Parry Sound | 19 |
1 |
0.8 |
||
| Hamilton West | 15 |
3 |
3.3 |
||
| Hamilton Mountain | 16 |
3 |
2.9 |
0.4 |
|
| Milton | 15 |
2 |
2.7 |
0.1 |
|
| Hamilton Downtown | 13 |
4 |
3.3 |
0.3 |
0.2 |
| Burlington | 13 |
3 |
5.6 |
||
| Brampton | 15 |
2 |
1.2 |
||
| Barrie | 17 |
2 |
0 |
||
| Oakville | 16 |
2 |
2.4 |
||
| Mississauga | 16 |
2 |
1.8 |
||
| Toronto West | 16 |
2 |
2.2 |
0.1 |
0.18 |
| Newmarket | 18 |
2 |
0.5 |
||
| Toronto North | 13 |
2 |
3.7 |
0 |
|
| North Bay | 19 |
1 |
0.3 |
||
| Toronto Downtown | 15 |
3 |
4.4 |
||
| Toronto East | 15 |
2 |
2.6 |
||
| St. Catharines | 20 |
2 |
0.6 |
||
| Dorset | 24 |
1 |
|||
| Oshawa | 19 |
2 |
0.2 |
||
| Peterborough | 20 |
2 |
0.3 |
||
| Belleville | 18 |
2 |
0.8 |
||
| Kingston | 16 |
1 |
0.5 |
||
| Ottawa Downtown | 17 |
1 |
0.9 |
||
| Cornwall | 13 |
2 |
0.4 |
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.
