Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 23 |
6 |
4.6 |
||
| Sault Ste. Marie | 24 |
2 |
0.7 |
0 |
|
| Windsor West | 26 |
5 |
6.3 |
0 |
|
| Windsor Downtown | 27 |
4 |
6.6 |
0 |
N/A |
| Sarnia | 36 |
3 |
0.4 |
0.1 |
|
| Chatham | 23 |
4 |
0.8 |
||
| Grand Bend | 31 |
4 |
0.5 |
||
| Tiverton | 20 |
3 |
|||
| London | 17 |
4 |
2.5 |
||
| Port Stanley | 14 |
3 |
1.1 |
||
| Sudbury | 19 |
2 |
0.9 |
0 |
|
| Kitchener | 30 |
4 |
1.9 |
||
| Brantford | 29 |
4 |
1.9 |
||
| Guelph | 31 |
3 |
1.2 |
||
| Parry Sound | 19 |
2 |
1.6 |
||
| Hamilton West | 26 |
4 |
9.2 |
||
| Hamilton Mountain | 18 |
5 |
16.1 |
32 |
|
| Milton | 29 |
3 |
2.5 |
0 |
|
| Hamilton Downtown | 17 |
5 |
13.5 |
26.8 |
0.27 |
| Burlington | 35 |
3 |
3.8 |
||
| Brampton | 24 |
3 |
2.1 |
||
| Barrie | 20 |
4 |
2.1 |
||
| Oakville | 27 |
4 |
3 |
||
| Mississauga | 26 |
3 |
4.5 |
||
| Toronto West | 23 |
3 |
6.2 |
0 |
0.25 |
| Newmarket | 25 |
4 |
1.6 |
||
| Toronto North | 26 |
4 |
2.4 |
0 |
|
| North Bay | 17 |
2 |
1.7 |
||
| Toronto Downtown | 25 |
10 |
7 |
||
| Toronto East | 23 |
4 |
4.9 |
||
| St. Catharines | 22 |
3 |
6.6 |
||
| Dorset | 19 |
2 |
|||
| Oshawa | 22 |
3 |
2 |
||
| Peterborough | 19 |
3 |
3.1 |
||
| Belleville | 14 |
3 |
6.2 |
||
| Kingston | 16 |
3 |
7.6 |
||
| Ottawa Downtown | 19 |
3 |
3.3 |
||
| Cornwall | 15 |
5 |
1.6 |
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.
