Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 11 |
6 |
10.7 |
||
| Belleville | 20 |
3 |
9 |
||
| Brampton | 16 |
2 |
9.5 |
||
| Brantford | 13 |
4 |
7 |
||
| Burlington | 4 |
4 |
23.9 |
||
| Chatham | 28 |
3 |
2.4 |
||
| Cornwall | 29 |
2 |
2.2 |
||
| Dorset | 13 |
2 |
|||
| Grand Bend | 19 |
4 |
4.3 |
||
| Guelph | 19 |
3 |
4.9 |
||
| Hamilton Downtown | 8 |
N/A |
N/A |
0.3 |
0.21 |
| Hamilton Mountain | 10 |
4 |
10 |
0.3 |
|
| Hamilton West | 12 |
4 |
9.1 |
||
| Kingston | 26 |
2 |
3.6 |
||
| Kitchener | 22 |
3 |
7.3 |
||
| London | 20 |
4 |
6.5 |
||
| Milton | 8 |
4 |
20.2 |
N/A |
|
| Mississauga | 7 |
3 |
18.7 |
||
| Newmarket | 26 |
3 |
3.3 |
||
| North Bay | 27 |
2 |
2.1 |
||
| Oakville | 5 |
5 |
21.7 |
||
| Oshawa | 13 |
2 |
5.3 |
||
| Ottawa Downtown | 27 |
2 |
3.9 |
||
| Parry Sound | 29 |
1 |
0.4 |
||
| Peterborough | 22 |
3 |
3.4 |
||
| Port Stanley | 23 |
3 |
6.1 |
||
| Sarnia | 23 |
3 |
7.7 |
0 |
|
| Sault Ste. Marie | 20 |
3 |
6.6 |
0.1 |
|
| St. Catharines | 6 |
6 |
18.9 |
||
| Sudbury | 30 |
1 |
2.3 |
0.2 |
|
| Thunder Bay | 21 |
3 |
5.3 |
||
| Tiverton | 26 |
1 |
|||
| Toronto Downtown | 5 |
2 |
30.4 |
||
| Toronto East | 9 |
4 |
23.7 |
||
| Toronto North | 7 |
4 |
23.3 |
0.1 |
|
| Toronto West | 3 |
6 |
28.8 |
0.2 |
0.33 |
| Windsor Downtown | 28 |
4 |
9.8 |
0 |
0.19 |
| Windsor West | 27 |
5 |
10.2 |
0.1 |
Order by station location (east to west)
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.
