Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 26 |
2 |
10.6 |
||
| Belleville | 32 |
3 |
3.3 |
||
| Brampton | 30 |
2 |
5.9 |
||
| Brantford | 17 |
3 |
9.6 |
||
| Burlington | 27 |
3 |
7.5 |
||
| Chatham | 39 |
3 |
5.5 |
||
| Cornwall | 32 |
2 |
2.7 |
||
| Dorset | 33 |
2 |
|||
| Grand Bend | 38 |
2 |
0.3 |
||
| Guelph | 25 |
5 |
8.6 |
||
| Hamilton Downtown | 28 |
3 |
6.6 |
0.1 |
0.14 |
| Hamilton Mountain | 26 |
3 |
5.3 |
0 |
|
| Hamilton West | 25 |
3 |
9.1 |
||
| Kingston | 31 |
3 |
2.6 |
||
| Kitchener | 15 |
3 |
18.1 |
||
| London | 30 |
2 |
5.9 |
||
| Milton | 28 |
3 |
8.9 |
0.2 |
|
| Mississauga | 25 |
3 |
9.6 |
||
| Newmarket | 31 |
3 |
3.9 |
||
| North Bay | 30 |
3 |
2.1 |
||
| Oakville | 29 |
3 |
5.4 |
||
| Oshawa | 14 |
5 |
10.2 |
||
| Ottawa Downtown | 33 |
2 |
3 |
||
| Parry Sound | 36 |
2 |
0.8 |
||
| Peterborough | 26 |
3 |
10.6 |
||
| Port Stanley | 33 |
2 |
3 |
||
| Sarnia | 31 |
3 |
4.2 |
0.2 |
|
| Sault Ste. Marie | 26 |
3 |
4.7 |
0 |
|
| St. Catharines | 28 |
3 |
5.2 |
||
| Sudbury | 28 |
1 |
4.7 |
0.5 |
|
| Thunder Bay | 20 |
4 |
10.4 |
||
| Tiverton | 36 |
1 |
|||
| Toronto Downtown | N/A |
6 |
N/A |
||
| Toronto East | 6 |
4 |
30.9 |
||
| Toronto North | 3 |
4 |
34.6 |
0.4 |
|
| Toronto West | 12 |
6 |
22.5 |
0 |
0.22 |
| Windsor Downtown | 21 |
6 |
16.4 |
0 |
0.19 |
| Windsor West | 25 |
6 |
10.7 |
0 |
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.
