Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 20 |
6 |
4.7 |
||
| Belleville | 23 |
4 |
2.1 |
||
| Brampton | 8 |
9 |
11.3 |
||
| Brantford | 31 |
5 |
1.3 |
||
| Burlington | 3 |
11 |
19.4 |
||
| Chatham | 31 |
6 |
4.1 |
||
| Cornwall | 21 |
6 |
6.4 |
||
| Dorset | 21 |
4 |
|||
| Grand Bend | 29 |
6 |
2.1 |
||
| Guelph | 27 |
6 |
2.9 |
||
| Hamilton Downtown | 2 |
13 |
21.1 |
0.4 |
0.36 |
| Hamilton Mountain | 26 |
6 |
3.6 |
0.5 |
|
| Hamilton West | 3 |
12 |
21.1 |
||
| Kingston | 25 |
3 |
2.2 |
||
| Kitchener | 32 |
6 |
2.2 |
||
| London | 34 |
6 |
3.7 |
||
| Milton | 7 |
12 |
14.2 |
0.2 |
|
| Mississauga | 10 |
12 |
11.6 |
||
| Newmarket | 15 |
12 |
9.7 |
||
| North Bay | 19 |
3 |
6.9 |
||
| Oakville | 10 |
10 |
12 |
||
| Oshawa | 14 |
8 |
7 |
||
| Ottawa Downtown | 22 |
4 |
6.3 |
||
| Parry Sound | 31 |
4 |
1.7 |
||
| Peterborough | 16 |
5 |
4.5 |
||
| Port Stanley | 39 |
5 |
2.5 |
||
| Sarnia | 22 |
7 |
12.8 |
3.7 |
|
| Sault Ste. Marie | 25 |
1 |
11.2 |
0.1 |
|
| St. Catharines | 26 |
5 |
2.2 |
||
| Sudbury | 16 |
3 |
25.8 |
0.2 |
|
| Thunder Bay | 39 |
2 |
1.8 |
||
| Tiverton | 36 |
4 |
|||
| Toronto Downtown | 18 |
8 |
11.9 |
||
| Toronto East | 16 |
9 |
6.5 |
||
| Toronto North | 7 |
19 |
16 |
0 |
|
| Toronto West | 9 |
12 |
14.4 |
0 |
0.26 |
| Windsor Downtown | 30 |
6 |
4.9 |
0 |
0.16 |
| Windsor West | 26 |
6 |
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.
