Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 10 |
2 |
2.8 |
||
| Belleville | 19 |
3 |
2.4 |
||
| Brampton | 3 |
3 |
10.2 |
||
| Brantford | 10 |
5 |
7.1 |
||
| Burlington | 2 |
5 |
11.5 |
||
| Chatham | 19 |
1 |
0.8 |
||
| Cornwall | 9 |
2 |
2.2 |
||
| Dorset | 8 |
1 |
|||
| Grand Bend | 16 |
2 |
1.2 |
||
| Guelph | 14 |
4 |
3.1 |
||
| Hamilton Downtown | 1 |
5 |
15.9 |
0.2 |
0.21 |
| Hamilton Mountain | 3 |
5 |
9.3 |
0 |
|
| Hamilton West | 0 |
4 |
10.2 |
||
| Kingston | 25 |
2 |
1 |
||
| Kitchener | 16 |
6 |
3.2 |
||
| London | 11 |
3 |
8.2 |
||
| Milton | 0 |
4 |
13.1 |
0.1 |
|
| Mississauga | 0 |
4 |
7.6 |
||
| Newmarket | 1 |
3 |
10.1 |
||
| North Bay | 14 |
1 |
1.2 |
||
| Oakville | 0 |
4 |
15.5 |
||
| Oshawa | 5 |
4 |
6 |
||
| Ottawa Downtown | 8 |
2 |
1.6 |
||
| Parry Sound | 10 |
1 |
0.8 |
||
| Peterborough | 9 |
4 |
3.2 |
||
| Port Stanley | 18 |
1 |
0.8 |
||
| Sarnia | 21 |
1 |
1.2 |
0.1 |
|
| Sault Ste. Marie | 22 |
2 |
2.4 |
0 |
|
| St. Catharines | 2 |
4 |
9.1 |
||
| Sudbury | 18 |
2 |
1.4 |
0 |
|
| Thunder Bay | 2 |
6 |
8.2 |
||
| Tiverton | 12 |
1 |
|||
| Toronto Downtown | 11 |
4 |
12 |
||
| Toronto East | 1 |
7 |
15.1 |
||
| Toronto North | 0 |
7 |
15.4 |
0.1 |
|
| Toronto West | 1 |
6 |
18.6 |
0.1 |
0.28 |
| Windsor Downtown | 23 |
1 |
3.2 |
0 |
0.17 |
| Windsor West | N/A |
1 |
3.3 |
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.
