Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 43 |
5 |
3.1 |
||
| Belleville | 42 |
3 |
2.3 |
||
| Brampton | 29 |
6 |
11.6 |
||
| Brantford | 30 |
6 |
4.8 |
||
| Burlington | 37 |
4 |
3.4 |
||
| Chatham | 30 |
11 |
6 |
||
| Cornwall | 35 |
8 |
8.5 |
||
| Dorset | 46 |
2 |
|||
| Grand Bend | 33 |
10 |
4.3 |
||
| Guelph | 27 |
9 |
12.1 |
||
| Hamilton Downtown | 29 |
6 |
8.4 |
1.3 |
0.19 |
| Hamilton Mountain | 34 |
5 |
5.5 |
0.4 |
|
| Hamilton West | 32 |
5 |
7.9 |
||
| Kingston | 40 |
5 |
6 |
||
| Kitchener | 30 |
6 |
8 |
||
| London | 30 |
13 |
9.9 |
||
| Milton | 33 |
6 |
5.9 |
0.2 |
|
| Mississauga | 36 |
5 |
3.6 |
||
| Newmarket | 34 |
5 |
4.4 |
||
| North Bay | 39 |
3 |
1.5 |
||
| Oakville | 35 |
5 |
4.2 |
||
| Oshawa | 36 |
3 |
2.7 |
||
| Ottawa Downtown | 40 |
5 |
5.2 |
||
| Parry Sound | 43 |
3 |
3 |
||
| Peterborough | 40 |
4 |
2.2 |
||
| Port Stanley | 31 |
12 |
7.6 |
||
| Sarnia | 16 |
11 |
15.7 |
0 |
|
| Sault Ste. Marie | 38 |
6 |
4 |
0.1 |
|
| St. Catharines | 32 |
8 |
5.2 |
||
| Sudbury | 37 |
3 |
3.6 |
0 |
|
| Thunder Bay | 29 |
3 |
3.7 |
||
| Tiverton | 39 |
7 |
|||
| Toronto Downtown | 24 |
10 |
28.7 |
||
| Toronto East | 36 |
5 |
4.4 |
||
| Toronto North | 28 |
8 |
10 |
0.7 |
|
| Toronto West | 32 |
7 |
7.9 |
0 |
0.22 |
| Windsor Downtown | 23 |
7 |
8.6 |
0 |
0.27 |
| Windsor West | 22 |
6 |
9.4 |
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.
