Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 34 |
8 |
12 |
||
| Belleville | 39 |
6 |
4.2 |
||
| Brampton | 40 |
7 |
11.9 |
||
| Brantford | 34 |
6 |
4.8 |
||
| Burlington | 55 |
5 |
2.1 |
||
| Chatham | 56 |
5 |
2.9 |
||
| Cornwall | 28 |
7 |
5.7 |
||
| Dorset | 21 |
6 |
|||
| Grand Bend | 44 |
5 |
2.5 |
||
| Guelph | 46 |
7 |
4.3 |
||
| Hamilton Downtown | 38 |
7 |
9 |
5 |
0.26 |
| Hamilton Mountain | 36 |
9 |
13.6 |
8.4 |
|
| Hamilton West | 26 |
9 |
21.4 |
||
| Kingston | 39 |
8 |
6.5 |
||
| Kitchener | 44 |
6 |
3.6 |
||
| London | 39 |
5 |
2.2 |
||
| Milton | 55 |
8 |
3.4 |
0.3 |
|
| Mississauga | 39 |
6 |
6.4 |
||
| Newmarket | 47 |
8 |
5 |
||
| North Bay | 38 |
9 |
2.6 |
||
| Oakville | 54 |
6 |
4.3 |
||
| Oshawa | 29 |
11 |
12.5 |
||
| Ottawa Downtown | 37 |
6 |
5.9 |
||
| Parry Sound | 52 |
8 |
3.6 |
||
| Peterborough | 50 |
5 |
2.7 |
||
| Port Stanley | 33 |
5 |
2.7 |
||
| Sarnia | 57 |
8 |
8 |
1 |
|
| Sault Ste. Marie | 28 |
6 |
1.8 |
0 |
|
| St. Catharines | 42 |
6 |
6 |
||
| Sudbury | 31 |
8 |
2 |
0.4 |
|
| Thunder Bay | 36 |
5 |
2.8 |
||
| Tiverton | 61 |
7 |
|||
| Toronto Downtown | 46 |
8 |
17.5 |
||
| Toronto East | 48 |
7 |
5.8 |
||
| Toronto North | 47 |
8 |
6.8 |
0 |
|
| Toronto West | 44 |
6 |
5.8 |
0.1 |
0.23 |
| Windsor Downtown | 61 |
6 |
4.6 |
0.3 |
0.18 |
| Windsor West | 57 |
7 |
4.1 |
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.
