Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 28 |
5 |
5.7 |
||
| Belleville | 30 |
3 |
1.6 |
||
| Brampton | 28 |
4 |
4.7 |
||
| Brantford | 24 |
4 |
2.6 |
||
| Burlington | 28 |
4 |
8 |
||
| Chatham | 32 |
4 |
4.6 |
||
| Cornwall | 26 |
2 |
1.3 |
||
| Dorset | 25 |
3 |
|||
| Grand Bend | 34 |
4 |
3.2 |
||
| Guelph | 25 |
5 |
5.1 |
||
| Hamilton Downtown | 29 |
4 |
5.7 |
0.2 |
0.19 |
| Hamilton Mountain | 31 |
4 |
3.7 |
0.2 |
|
| Hamilton West | 29 |
4 |
5 |
||
| Kingston | 28 |
2 |
1.5 |
||
| Kitchener | 26 |
4 |
5.4 |
||
| London | 37 |
4 |
4.1 |
||
| Milton | 29 |
4 |
5.7 |
0 |
|
| Mississauga | 29 |
3 |
5.9 |
||
| Newmarket | 25 |
5 |
7.6 |
||
| North Bay | 35 |
4 |
3.4 |
||
| Oakville | 31 |
4 |
3.1 |
||
| Oshawa | 26 |
3 |
7 |
||
| Ottawa Downtown | 19 |
3 |
7.4 |
||
| Parry Sound | 40 |
4 |
1.7 |
||
| Peterborough | 27 |
3 |
3.8 |
||
| Port Stanley | 42 |
4 |
1.5 |
||
| Sarnia | 23 |
5 |
15.4 |
7.7 |
|
| Sault Ste. Marie | 28 |
5 |
4.5 |
0 |
|
| St. Catharines | 33 |
3 |
2.7 |
||
| Sudbury | 23 |
6 |
12.9 |
0.1 |
|
| Thunder Bay | 14 |
5 |
6.8 |
||
| Tiverton | 34 |
4 |
|||
| Toronto Downtown | 26 |
5 |
10.3 |
||
| Toronto East | 24 |
4 |
8.2 |
||
| Toronto North | 15 |
5 |
18.2 |
0.1 |
|
| Toronto West | 24 |
4 |
9.9 |
0.1 |
0.2 |
| Windsor Downtown | 30 |
5 |
7.5 |
0.2 |
0.19 |
| Windsor West | 28 |
5 |
9 |
0.2 |
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.
