Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 18 |
4 |
3.6 |
||
| Sault Ste. Marie | 44 |
12 |
5.9 |
0.2 |
|
| Windsor West | 60 |
14 |
5.6 |
0.4 |
|
| Windsor Downtown | 62 |
14 |
5.3 |
0.7 |
0.25 |
| Sarnia | 62 |
14 |
7.7 |
4 |
|
| Chatham | 56 |
15 |
2.9 |
||
| Grand Bend | 51 |
9 |
2.7 |
||
| Tiverton | 45 |
11 |
|||
| London | 48 |
11 |
4.5 |
||
| Port Stanley | 48 |
13 |
2.7 |
||
| Sudbury | 32 |
4 |
2.4 |
0.2 |
|
| Kitchener | 37 |
9 |
7.6 |
||
| Brantford | 27 |
0 |
8.3 |
||
| Guelph | 32 |
7 |
6.5 |
||
| Parry Sound | 38 |
4 |
2.2 |
||
| Hamilton West | 20 |
4 |
11.2 |
||
| Hamilton Mountain | 11 |
7 |
17 |
29.7 |
|
| Milton | 21 |
7 |
10.8 |
0.2 |
|
| Hamilton Downtown | 13 |
5 |
20 |
18.6 |
0.22 |
| Burlington | 30 |
3 |
1.7 |
||
| Brampton | 23 |
4 |
7.7 |
||
| Barrie | 23 |
7 |
9.2 |
||
| Oakville | 21 |
9 |
11.2 |
||
| Mississauga | 28 |
3 |
2.2 |
||
| Toronto West | 18 |
4 |
13.8 |
0.1 |
0.2 |
| Newmarket | 22 |
6 |
10 |
||
| Toronto North | 23 |
4 |
7.4 |
0.1 |
|
| North Bay | 34 |
4 |
2.7 |
||
| Toronto Downtown | 18 |
5 |
16.5 |
||
| Toronto East | 25 |
4 |
4.2 |
||
| St. Catharines | 19 |
4 |
10.1 |
||
| Dorset | 30 |
3 |
|||
| Oshawa | 22 |
6 |
9.2 |
||
| Peterborough | 25 |
3 |
3.8 |
||
| Belleville | 30 |
3 |
2.2 |
||
| Kingston | 28 |
3 |
4 |
||
| Ottawa Downtown | 17 |
6 |
8.1 |
||
| Cornwall | 21 |
5 |
7.2 |
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.
