Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 28 |
5 |
3.7 |
||
| Belleville | 42 |
5 |
1.9 |
||
| Brampton | 30 |
5 |
5 |
||
| Brantford | 25 |
5 |
5.5 |
||
| Burlington | 38 |
4 |
3.4 |
||
| Chatham | 31 |
5 |
3.6 |
||
| Cornwall | 41 |
4 |
0.8 |
||
| Dorset | 31 |
3 |
|||
| Grand Bend | 33 |
4 |
1.2 |
||
| Guelph | 32 |
5 |
5.5 |
||
| Hamilton Downtown | 28 |
5 |
10.5 |
0.2 |
0.16 |
| Hamilton Mountain | 35 |
4 |
4.4 |
0.2 |
|
| Hamilton West | 22 |
4 |
15.6 |
||
| Kingston | 41 |
5 |
1.6 |
||
| Kitchener | 33 |
5 |
4 |
||
| London | 29 |
5 |
5.4 |
||
| Milton | 36 |
5 |
2.4 |
0.3 |
|
| Mississauga | 35 |
5 |
4.2 |
||
| Newmarket | 33 |
6 |
5.5 |
||
| North Bay | 31 |
5 |
8.5 |
||
| Oakville | 34 |
5 |
4.2 |
||
| Oshawa | 32 |
6 |
7.1 |
||
| Ottawa Downtown | 37 |
4 |
5.3 |
||
| Parry Sound | 36 |
4 |
2.1 |
||
| Peterborough | 32 |
6 |
4.6 |
||
| Port Stanley | 34 |
5 |
4.7 |
||
| Sarnia | 32 |
6 |
7.7 |
2.1 |
|
| Sault Ste. Marie | 37 |
4 |
1.7 |
0.1 |
|
| St. Catharines | 34 |
4 |
7.4 |
||
| Sudbury | 33 |
3 |
11.4 |
0.4 |
|
| Thunder Bay | 24 |
20 |
6.8 |
||
| Tiverton | 34 |
5 |
|||
| Toronto Downtown | 27 |
8 |
22.7 |
||
| Toronto East | 28 |
6 |
11.8 |
||
| Toronto North | 22 |
8 |
14.3 |
0.1 |
|
| Toronto West | N/A |
N/A |
N/A |
N/A |
N/A |
| Windsor Downtown | N/A |
N/A |
N/A |
N/A |
N/A |
| Windsor West | 28 |
5 |
8.1 |
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.
