Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 17 |
5 |
6.7 |
||
| Belleville | 35 |
6 |
4 |
||
| Brampton | 29 |
6 |
4.7 |
||
| Brantford | 27 |
7 |
3.2 |
||
| Burlington | 21 |
6 |
12.2 |
||
| Chatham | 29 |
6 |
3.9 |
||
| Cornwall | 27 |
5 |
2 |
||
| Dorset | 25 |
3 |
|||
| Grand Bend | 29 |
4 |
2.7 |
||
| Guelph | 28 |
5 |
6 |
||
| Hamilton Downtown | 25 |
5 |
5.3 |
0 |
0.18 |
| Hamilton Mountain | 29 |
5 |
3.7 |
0.4 |
|
| Hamilton West | 25 |
6 |
6.4 |
||
| Kingston | 40 |
7 |
2.5 |
||
| Kitchener | 31 |
6 |
4.8 |
||
| London | 29 |
5 |
3.9 |
||
| Milton | 31 |
6 |
4.9 |
0.2 |
|
| Mississauga | 25 |
5 |
4.5 |
||
| Newmarket | 28 |
5 |
4.1 |
||
| North Bay | 28 |
4 |
1.4 |
||
| Oakville | 30 |
5 |
4 |
||
| Oshawa | 12 |
8 |
14.6 |
||
| Ottawa Downtown | 15 |
5 |
3.4 |
||
| Parry Sound | 30 |
3 |
1.5 |
||
| Peterborough | 28 |
5 |
4.3 |
||
| Port Stanley | 32 |
5 |
2 |
||
| Sarnia | 19 |
6 |
14.6 |
5.6 |
|
| Sault Ste. Marie | N/A |
N/A |
N/A |
N/A |
|
| St. Catharines | 30 |
4 |
4.6 |
||
| Sudbury | 26 |
6 |
3.6 |
3.1 |
|
| Thunder Bay | 19 |
10 |
6 |
||
| Tiverton | 34 |
3 |
|||
| Toronto Downtown | 8 |
5 |
31.3 |
||
| Toronto East | 9 |
11 |
13.2 |
||
| Toronto North | 14 |
9 |
18.5 |
0 |
|
| Toronto West | 12 |
7 |
18.2 |
0 |
0.31 |
| Windsor Downtown | 16 |
7 |
13.1 |
0 |
0.15 |
| Windsor West | 15 |
7 |
11.6 |
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.
