Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 20 |
1 |
2 |
||
| Sault Ste. Marie | 29 |
4 |
2.8 |
0.1 |
|
| Windsor West | 32 |
20 |
6.2 |
0.2 |
|
| Windsor Downtown | 32 |
18 |
6 |
0.2 |
0.26 |
| Sarnia | 30 |
13 |
11.9 |
20.4 |
|
| Chatham | 40 |
13 |
4.2 |
||
| Grand Bend | 36 |
9 |
1.6 |
||
| Tiverton | 36 |
8 |
|||
| London | 39 |
10 |
2.1 |
||
| Port Stanley | 42 |
9 |
1.6 |
||
| Sudbury | 30 |
6 |
2.5 |
0.3 |
|
| Kitchener | 32 |
7 |
2.3 |
||
| Brantford | 32 |
8 |
1.1 |
||
| Guelph | 31 |
7 |
1.5 |
||
| Parry Sound | 31 |
8 |
2.4 |
||
| Hamilton West | 30 |
9 |
2.8 |
||
| Hamilton Mountain | 29 |
8 |
1.6 |
0.2 |
|
| Milton | 32 |
9 |
2.3 |
0.4 |
|
| Hamilton Downtown | 29 |
9 |
3.2 |
0.6 |
0.21 |
| Burlington | 27 |
9 |
7.5 |
||
| Brampton | 31 |
7 |
2.7 |
||
| Barrie | 22 |
8 |
4.9 |
||
| Oakville | 30 |
9 |
3.4 |
||
| Mississauga | 29 |
9 |
3.9 |
||
| Toronto West | 26 |
9 |
3.6 |
0.8 |
0.2 |
| Newmarket | 29 |
8 |
3.9 |
||
| Toronto North | 28 |
9 |
3.1 |
0.2 |
|
| North Bay | 23 |
5 |
3.4 |
||
| Toronto Downtown | 27 |
8 |
7.2 |
||
| Toronto East | 22 |
7 |
2.1 |
||
| St. Catharines | 29 |
9 |
2.1 |
||
| Dorset | 25 |
5 |
|||
| Oshawa | N/A |
N/A |
N/A |
||
| Peterborough | N/A |
6 |
5 |
||
| Belleville | 30 |
5 |
1.5 |
||
| Kingston | 23 |
5 |
1.2 |
||
| Ottawa Downtown | 22 |
5 |
2.7 |
||
| Cornwall | 22 |
5 |
1.1 |
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.
