Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 12 |
6 |
9.7 |
||
| Sault Ste. Marie | 10 |
6 |
6.7 |
0 |
|
| Windsor West | 13 |
12 |
22.7 |
0.2 |
|
| Windsor Downtown | 28 |
8 |
9.3 |
0.1 |
0.18 |
| Sarnia | 13 |
10 |
29.1 |
0 |
|
| Chatham | 22 |
7 |
6.6 |
||
| Grand Bend | N/A |
N/A |
N/A |
||
| Tiverton | 30 |
5 |
|||
| London | 13 |
9 |
14.8 |
||
| Port Stanley | 35 |
7 |
3.2 |
||
| Sudbury | 24 |
3 |
7.2 |
0.1 |
|
| Kitchener | 32 |
5 |
5.9 |
||
| Brantford | 25 |
9 |
3.8 |
||
| Guelph | 33 |
3 |
4 |
||
| Parry Sound | 36 |
2 |
1.8 |
||
| Hamilton West | 27 |
7 |
7.3 |
||
| Hamilton Mountain | 30 |
7 |
6.3 |
0.1 |
|
| Milton | 26 |
6 |
10 |
0.2 |
|
| Hamilton Downtown | 28 |
7 |
9.5 |
0.3 |
0.18 |
| Burlington | 22 |
7 |
15.3 |
||
| Brampton | 38 |
3 |
3 |
||
| Barrie | 13 |
8 |
18 |
||
| Oakville | 25 |
6 |
7.2 |
||
| Mississauga | 22 |
5 |
12 |
||
| Toronto West | 27 |
4 |
16.4 |
0 |
0.16 |
| Newmarket | 34 |
3 |
2.9 |
||
| Toronto North | 31 |
4 |
7.4 |
0.1 |
|
| North Bay | 31 |
2 |
0.5 |
||
| Toronto Downtown | 25 |
1 |
15 |
||
| Toronto East | 22 |
4 |
13.9 |
||
| St. Catharines | 26 |
7 |
9.7 |
||
| Dorset | 35 |
2 |
|||
| Oshawa | 16 |
3 |
6.1 |
||
| Peterborough | 28 |
3 |
3.7 |
||
| Belleville | 34 |
2 |
2.3 |
||
| Kingston | 31 |
2 |
3.9 |
||
| Ottawa Downtown | 24 |
2 |
4.8 |
||
| Cornwall | 28 |
2 |
1.8 |
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.
