Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 19 |
1 |
1.2 |
||
| Belleville | 27 |
8 |
2.2 |
||
| Brampton | 23 |
1 |
1.1 |
||
| Brantford | 24 |
6 |
0.4 |
||
| Burlington | 26 |
5 |
2.1 |
||
| Chatham | 24 |
8 |
4.4 |
||
| Cornwall | 25 |
8 |
3.8 |
||
| Dorset | 20 |
1 |
|||
| Grand Bend | 28 |
1 |
0.3 |
||
| Guelph | 22 |
1 |
0.6 |
||
| Hamilton Downtown | 24 |
6 |
2.7 |
0.3 |
0.18 |
| Hamilton Mountain | 23 |
7 |
1.1 |
0.1 |
|
| Hamilton West | 24 |
6 |
4.4 |
||
| Kingston | 20 |
16 |
5.4 |
||
| Kitchener | 21 |
1 |
1.1 |
||
| London | 25 |
5 |
2.7 |
||
| Milton | 23 |
3 |
3.5 |
0.4 |
|
| Mississauga | 25 |
3 |
2.1 |
||
| Newmarket | 23 |
0 |
1.1 |
||
| North Bay | 23 |
1 |
0.2 |
||
| Oakville | 25 |
3 |
1.3 |
||
| Oshawa | 24 |
3 |
1.1 |
||
| Ottawa Downtown | 23 |
8 |
2.4 |
||
| Parry Sound | 20 |
1 |
0.6 |
||
| Peterborough | 25 |
2 |
0.4 |
||
| Port Stanley | 23 |
7 |
1.5 |
||
| Sarnia | 24 |
1 |
2 |
0.3 |
|
| Sault Ste. Marie | 29 |
1 |
0.6 |
0 |
|
| St. Catharines | 24 |
7 |
2.6 |
||
| Sudbury | 29 |
1 |
0 |
0.4 |
|
| Thunder Bay | 25 |
6 |
2.4 |
||
| Tiverton | 25 |
0 |
|||
| Toronto Downtown | 19 |
5 |
8 |
||
| Toronto East | 23 |
3 |
2.8 |
||
| Toronto North | 22 |
2 |
3.4 |
0.4 |
|
| Toronto West | 17 |
2 |
5.9 |
0.1 |
0.14 |
| Windsor Downtown | 9 |
17 |
18.4 |
0 |
0.29 |
| Windsor West | 11 |
16 |
15.5 |
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.
