Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 22 |
1 |
3.2 |
||
| Belleville | 13 |
3 |
7.5 |
||
| Brampton | 8 |
3 |
5.3 |
||
| Brantford | 4 |
0 |
6.4 |
||
| Burlington | 4 |
5 |
9.8 |
||
| Chatham | 0 |
8 |
12.3 |
||
| Cornwall | 16 |
3 |
7.5 |
||
| Dorset | 7 |
2 |
|||
| Grand Bend | 6 |
4 |
1.9 |
||
| Guelph | 1 |
5 |
7.8 |
||
| Hamilton Downtown | 1 |
5 |
15.4 |
0.2 |
0.19 |
| Hamilton Mountain | 5 |
4 |
7.5 |
0 |
|
| Hamilton West | 1 |
5 |
10.6 |
||
| Kingston | 19 |
2 |
5.4 |
||
| Kitchener | 7 |
3 |
8 |
||
| London | N/A |
8 |
6.3 |
||
| Milton | 1 |
5 |
13.5 |
0.1 |
|
| Mississauga | 6 |
3 |
7.1 |
||
| Newmarket | 20 |
2 |
2.3 |
||
| North Bay | 20 |
1 |
5.8 |
||
| Oakville | 7 |
6 |
7.8 |
||
| Oshawa | 4 |
3 |
5.1 |
||
| Ottawa Downtown | 22 |
2 |
4.9 |
||
| Parry Sound | 21 |
2 |
1.8 |
||
| Peterborough | 8 |
2 |
5.3 |
||
| Port Stanley | 8 |
4 |
3 |
||
| Sarnia | 4 |
8 |
8.9 |
0.1 |
|
| Sault Ste. Marie | 17 |
2 |
1.2 |
0 |
|
| St. Catharines | 7 |
4 |
6.4 |
||
| Sudbury | 28 |
2 |
2.6 |
0 |
|
| Thunder Bay | 4 |
6 |
8.9 |
||
| Tiverton | 30 |
1 |
|||
| Toronto Downtown | 11 |
3 |
13.6 |
||
| Toronto East | 15 |
2 |
6 |
||
| Toronto North | 11 |
3 |
9.8 |
0 |
|
| Toronto West | 6 |
3 |
16.7 |
0.1 |
0.17 |
| Windsor Downtown | 3 |
15 |
22 |
0.4 |
0.63 |
| Windsor West | 0 |
20 |
14.1 |
0.3 |
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.
