Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 7 |
4 |
22.6 |
||
| Belleville | 28 |
2 |
1.3 |
||
| Brampton | 22 |
4 |
5.7 |
||
| Brantford | 12 |
8 |
11.3 |
||
| Burlington | 15 |
7 |
12.7 |
||
| Chatham | 21 |
5 |
12.1 |
||
| Cornwall | 10 |
3 |
4.2 |
||
| Dorset | 23 |
1 |
|||
| Grand Bend | 19 |
6 |
5.2 |
||
| Guelph | 9 |
6 |
15.9 |
||
| Hamilton Downtown | 12 |
8 |
15.5 |
0.4 |
0.26 |
| Hamilton Mountain | 16 |
6 |
9.2 |
0.2 |
|
| Hamilton West | 14 |
6 |
15.6 |
||
| Kingston | 22 |
3 |
3.7 |
||
| Kitchener | 22 |
5 |
8.2 |
||
| London | 2 |
10 |
16 |
||
| Milton | 18 |
6 |
13.9 |
0.2 |
|
| Mississauga | 16 |
5 |
13.7 |
||
| Newmarket | 25 |
3 |
4 |
||
| North Bay | 20 |
2 |
2.2 |
||
| Oakville | 18 |
5 |
10.9 |
||
| Oshawa | 20 |
3 |
5.8 |
||
| Ottawa Downtown | 13 |
3 |
6 |
||
| Parry Sound | 22 |
2 |
7.4 |
||
| Peterborough | 24 |
2 |
1.8 |
||
| Port Stanley | 28 |
4 |
3.4 |
||
| Sarnia | 11 |
6 |
22 |
25.9 |
|
| Sault Ste. Marie | 17 |
2 |
1.7 |
0 |
|
| St. Catharines | 23 |
5 |
6.4 |
||
| Sudbury | 21 |
2 |
0.8 |
0.1 |
|
| Thunder Bay | 4 |
9 |
15 |
||
| Tiverton | 32 |
4 |
|||
| Toronto Downtown | 1 |
8 |
35.1 |
||
| Toronto East | 7 |
8 |
24.3 |
||
| Toronto North | 12 |
5 |
16.5 |
0.6 |
|
| Toronto West | 1 |
10 |
28.1 |
0.4 |
0.49 |
| Windsor Downtown | 18 |
15 |
10.1 |
0.2 |
0.21 |
| Windsor West | 20 |
15 |
7.5 |
0.3 |
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.
