Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 15 |
0 |
1.5 |
||
| Belleville | 15 |
1 |
1.5 |
||
| Brampton | 16 |
1 |
1.5 |
||
| Brantford | 18 |
1 |
2.5 |
||
| Burlington | 17 |
1 |
2.8 |
||
| Chatham | 18 |
1 |
1.7 |
||
| Cornwall | 13 |
1 |
1.4 |
||
| Dorset | 14 |
0 |
|||
| Grand Bend | 22 |
1 |
0.1 |
||
| Guelph | 16 |
2 |
1.1 |
||
| Hamilton Downtown | 9 |
3 |
8.8 |
0.3 |
0.14 |
| Hamilton Mountain | 11 |
3 |
4.2 |
0.4 |
|
| Hamilton West | 6 |
3 |
10.3 |
||
| Kingston | 14 |
1 |
2.7 |
||
| Kitchener | 16 |
2 |
2 |
||
| London | 14 |
1 |
7.7 |
||
| Milton | 16 |
1 |
1.9 |
0 |
|
| Mississauga | 15 |
1 |
3.1 |
||
| Newmarket | 15 |
1 |
1.3 |
||
| North Bay | 17 |
0 |
1.2 |
||
| Oakville | 15 |
1 |
2.2 |
||
| Oshawa | 15 |
1 |
0.7 |
||
| Ottawa Downtown | 13 |
1 |
1.8 |
||
| Parry Sound | 18 |
0 |
0.3 |
||
| Peterborough | 12 |
1 |
0.9 |
||
| Port Stanley | 17 |
1 |
1.1 |
||
| Sarnia | 21 |
1 |
1.9 |
0.1 |
|
| Sault Ste. Marie | 24 |
0 |
2.4 |
0 |
|
| St. Catharines | 19 |
1 |
1.9 |
||
| Sudbury | 20 |
0 |
1.1 |
0 |
|
| Thunder Bay | 10 |
2 |
10.6 |
||
| Tiverton | 20 |
0 |
|||
| Toronto Downtown | 11 |
1 |
9.2 |
||
| Toronto East | 11 |
2 |
4.8 |
||
| Toronto North | 12 |
1 |
4.2 |
0 |
|
| Toronto West | 11 |
1 |
6.9 |
0.1 |
0.15 |
| Windsor Downtown | 15 |
3 |
9.7 |
0.1 |
0.22 |
| Windsor West | 15 |
3 |
8.8 |
0 |
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.
