Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 45 |
10 |
5.2 |
||
| Belleville | 31 |
7 |
8.5 |
||
| Brampton | 43 |
5 |
5.7 |
||
| Brantford | 36 |
8 |
12.2 |
||
| Burlington | 55 |
6 |
3.2 |
||
| Chatham | 47 |
5 |
1.5 |
||
| Cornwall | 35 |
11 |
5.9 |
||
| Dorset | 24 |
8 |
|||
| Grand Bend | 38 |
6 |
2.6 |
||
| Guelph | 44 |
6 |
5.4 |
||
| Hamilton Downtown | 30 |
8 |
17.3 |
8.8 |
0.19 |
| Hamilton Mountain | 38 |
8 |
12.5 |
10.7 |
|
| Hamilton West | 43 |
7 |
8.2 |
||
| Kingston | 28 |
10 |
7.6 |
||
| Kitchener | 42 |
6 |
6.1 |
||
| London | 33 |
7 |
5.1 |
||
| Milton | 37 |
7 |
11.6 |
1.7 |
|
| Mississauga | 42 |
6 |
5.7 |
||
| Newmarket | 44 |
8 |
4.3 |
||
| North Bay | 30 |
9 |
1.9 |
||
| Oakville | 36 |
7 |
15.9 |
||
| Oshawa | 44 |
7 |
3.1 |
||
| Ottawa Downtown | 41 |
7 |
4.1 |
||
| Parry Sound | 31 |
8 |
3.6 |
||
| Peterborough | 30 |
6 |
5.8 |
||
| Port Stanley | 37 |
5 |
3 |
||
| Sarnia | 45 |
10 |
7.2 |
0.9 |
|
| Sault Ste. Marie | 41 |
5 |
2.7 |
0 |
|
| St. Catharines | 41 |
6 |
4.1 |
||
| Sudbury | 39 |
5 |
1.8 |
0 |
|
| Thunder Bay | 30 |
13 |
8.9 |
||
| Tiverton | 27 |
5 |
|||
| Toronto Downtown | 48 |
8 |
7.2 |
||
| Toronto East | 44 |
7 |
5.4 |
||
| Toronto North | 39 |
7 |
5.8 |
0 |
|
| Toronto West | 31 |
7 |
11.6 |
0.1 |
0.18 |
| Windsor Downtown | 47 |
6 |
4.6 |
0.1 |
0.18 |
| Windsor West | 48 |
7 |
1.9 |
0.1 |
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.
