Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 1 |
5 |
6.4 |
||
| Belleville | 7 |
3 |
9.8 |
||
| Brampton | 3 |
5 |
15.3 |
||
| Brantford | 3 |
7 |
5.2 |
||
| Burlington | 12 |
4 |
14.7 |
||
| Chatham | 30 |
7 |
1 |
||
| Cornwall | 3 |
3 |
8.4 |
||
| Dorset | 2 |
3 |
|||
| Grand Bend | 21 |
3 |
1.1 |
||
| Guelph | 3 |
6 |
8.8 |
||
| Hamilton Downtown | 1 |
6 |
19.8 |
0.2 |
0.34 |
| Hamilton Mountain | 12 |
4 |
11.5 |
1 |
|
| Hamilton West | 0 |
6 |
11.2 |
||
| Kingston | 10 |
3 |
3.4 |
||
| Kitchener | 1 |
9 |
11.2 |
||
| London | 13 |
6 |
6.3 |
||
| Milton | 1 |
0 |
18.7 |
0.1 |
|
| Mississauga | 1 |
4 |
12.6 |
||
| Newmarket | 3 |
4 |
8.2 |
||
| North Bay | 4 |
3 |
10.2 |
||
| Oakville | 5 |
4 |
15.7 |
||
| Oshawa | 6 |
3 |
5.2 |
||
| Ottawa Downtown | 10 |
2 |
4 |
||
| Parry Sound | 17 |
2 |
1.3 |
||
| Peterborough | 8 |
3 |
4.7 |
||
| Port Stanley | 21 |
4 |
1.5 |
||
| Sarnia | 24 |
6 |
2.9 |
0.2 |
|
| Sault Ste. Marie | 12 |
1 |
0.9 |
0 |
|
| St. Catharines | 3 |
8 |
9.5 |
||
| Sudbury | 2 |
6 |
11 |
0.1 |
|
| Thunder Bay | 21 |
2 |
2.6 |
||
| Tiverton | 12 |
3 |
|||
| Toronto Downtown | 19 |
3 |
6.4 |
||
| Toronto East | 0 |
6 |
16.1 |
||
| Toronto North | 1 |
7 |
15.9 |
0.2 |
|
| Toronto West | 1 |
6 |
23.5 |
0.2 |
0.31 |
| Windsor Downtown | 30 |
5 |
5.3 |
0.1 |
0.19 |
| Windsor West | N/A |
N/A |
N/A |
N/A |
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.
