Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 32 |
2 |
1.7 |
||
| Sault Ste. Marie | 17 |
3 |
20.4 |
0.3 |
|
| Windsor West | 18 |
20 |
15 |
0.1 |
|
| Windsor Downtown | 17 |
14 |
15.9 |
0.1 |
0.18 |
| Sarnia | 27 |
8 |
4.8 |
0.2 |
|
| Chatham | 34 |
10 |
8.1 |
||
| Grand Bend | 29 |
11 |
2.6 |
||
| Tiverton | 34 |
3 |
|||
| London | 25 |
14 |
7 |
||
| Port Stanley | 29 |
12 |
3.6 |
||
| Sudbury | 2 |
7 |
32.6 |
0.4 |
|
| Kitchener | 26 |
11 |
6.8 |
||
| Brantford | 28 |
10 |
2.4 |
||
| Guelph | 26 |
11 |
7.9 |
||
| Parry Sound | 23 |
3 |
5.5 |
||
| Hamilton West | 27 |
11 |
9.2 |
||
| Hamilton Mountain | 25 |
11 |
5.2 |
0.1 |
|
| Milton | 24 |
13 |
11.2 |
0.3 |
|
| Hamilton Downtown | 26 |
11 |
10.8 |
0.1 |
0.14 |
| Burlington | 27 |
10 |
9.5 |
||
| Brampton | 25 |
9 |
7.6 |
||
| Barrie | 20 |
4 |
10.9 |
||
| Oakville | 28 |
11 |
5.3 |
||
| Mississauga | 27 |
11 |
7.2 |
||
| Toronto West | 13 |
12 |
20.4 |
0.2 |
0.19 |
| Newmarket | 28 |
3 |
7.1 |
||
| Toronto North | 18 |
7 |
13.1 |
0.6 |
|
| North Bay | 8 |
4 |
17.6 |
||
| Toronto Downtown | 19 |
10 |
15.8 |
||
| Toronto East | 12 |
7 |
20.8 |
||
| St. Catharines | 28 |
12 |
19.3 |
||
| Dorset | 20 |
2 |
|||
| Oshawa | 31 |
3 |
4.7 |
||
| Peterborough | 28 |
3 |
2.9 |
||
| Belleville | 25 |
4 |
2 |
||
| Kingston | 25 |
4 |
3.3 |
||
| Ottawa Downtown | 20 |
4 |
7.8 |
||
| Cornwall | 20 |
4 |
10.2 |
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.
