Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 41 |
5 |
2.4 |
||
| Belleville | 47 |
6 |
3.3 |
||
| Brampton | 28 |
8 |
18.5 |
||
| Brantford | 37 |
9 |
2.5 |
||
| Burlington | 45 |
8 |
3.6 |
||
| Chatham | 27 |
7 |
7.4 |
||
| Cornwall | 35 |
6 |
6.4 |
||
| Dorset | 40 |
3 |
|||
| Grand Bend | 41 |
6 |
3.2 |
||
| Guelph | 37 |
8 |
8.1 |
||
| Hamilton Downtown | 38 |
10 |
8 |
1 |
0.29 |
| Hamilton Mountain | 35 |
12 |
10.6 |
1.7 |
|
| Hamilton West | 40 |
9 |
7.1 |
||
| Kingston | 43 |
6 |
4.3 |
||
| Kitchener | 40 |
8 |
5.5 |
||
| London | 37 |
11 |
7.2 |
||
| Milton | 41 |
10 |
5.5 |
0.2 |
|
| Mississauga | 40 |
9 |
5.5 |
||
| Newmarket | 39 |
8 |
8.1 |
||
| North Bay | 39 |
5 |
1.5 |
||
| Oakville | 41 |
8 |
6.2 |
||
| Oshawa | 41 |
6 |
4.9 |
||
| Ottawa Downtown | 39 |
6 |
5.5 |
||
| Parry Sound | 42 |
3 |
2.2 |
||
| Peterborough | 41 |
7 |
2.4 |
||
| Port Stanley | 37 |
8 |
5.1 |
||
| Sarnia | 37 |
11 |
5.3 |
0 |
|
| Sault Ste. Marie | 46 |
6 |
7.9 |
0.4 |
|
| St. Catharines | 38 |
8 |
3.4 |
||
| Sudbury | 35 |
4 |
4.1 |
11.7 |
|
| Thunder Bay | 27 |
5 |
3.2 |
||
| Tiverton | 45 |
7 |
|||
| Toronto Downtown | 34 |
8 |
16.3 |
||
| Toronto East | 37 |
8 |
8.4 |
||
| Toronto North | 29 |
11 |
15.3 |
0 |
|
| Toronto West | 31 |
8 |
12.3 |
0 |
0.21 |
| Windsor Downtown | 12 |
6 |
20.6 |
0 |
0.38 |
| Windsor West | 11 |
5 |
19.4 |
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.
