Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 30 |
3 |
7.5 |
||
| Belleville | 34 |
3 |
4 |
||
| Brampton | 28 |
3 |
10.3 |
||
| Brantford | 29 |
3 |
5.6 |
||
| Burlington | 21 |
7 |
18.4 |
||
| Chatham | 36 |
2 |
13.8 |
||
| Cornwall | 33 |
3 |
2.8 |
||
| Dorset | 33 |
2 |
|||
| Grand Bend | 34 |
3 |
1.7 |
||
| Guelph | 31 |
3 |
5.9 |
||
| Hamilton Downtown | 27 |
3 |
8.6 |
0.4 |
0.19 |
| Hamilton Mountain | 32 |
3 |
4.8 |
0.2 |
|
| Hamilton West | 26 |
3 |
12.2 |
||
| Kingston | 29 |
3 |
8.4 |
||
| Kitchener | 29 |
3 |
7.6 |
||
| London | 28 |
4 |
10.3 |
||
| Milton | 22 |
4 |
17.7 |
0.2 |
|
| Mississauga | 25 |
4 |
13.8 |
||
| Newmarket | 30 |
4 |
7.9 |
||
| North Bay | 24 |
3 |
12.9 |
||
| Oakville | 26 |
5 |
13.6 |
||
| Oshawa | 35 |
3 |
2.7 |
||
| Ottawa Downtown | 30 |
3 |
5 |
||
| Parry Sound | 35 |
2 |
1.1 |
||
| Peterborough | 33 |
4 |
2.6 |
||
| Port Stanley | 36 |
2 |
1.4 |
||
| Sarnia | 35 |
3 |
4 |
N/A |
|
| Sault Ste. Marie | 28 |
3 |
9.1 |
0.1 |
|
| St. Catharines | 30 |
4 |
8.3 |
||
| Sudbury | 31 |
2 |
4.6 |
0.1 |
|
| Thunder Bay | 32 |
3 |
5.1 |
||
| Tiverton | 28 |
2 |
|||
| Toronto Downtown | 21 |
9 |
N/A |
||
| Toronto East | 21 |
5 |
16.2 |
||
| Toronto North | 17 |
4 |
19.3 |
0.6 |
|
| Toronto West | 7 |
6 |
31 |
0.2 |
0.29 |
| Windsor Downtown | 28 |
4 |
12.3 |
0.2 |
0.18 |
| Windsor West | 28 |
4 |
10.1 |
0.2 |
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.
