Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 27 |
7 |
8.7 |
||
| Belleville | 20 |
8 |
10 |
||
| Brampton | 24 |
10 |
13.9 |
||
| Brantford | 23 |
8 |
6.2 |
||
| Burlington | 30 |
8 |
9.1 |
||
| Chatham | 20 |
14 |
12.4 |
||
| Cornwall | 33 |
4 |
2.9 |
||
| Dorset | 33 |
5 |
|||
| Grand Bend | 33 |
10 |
2.6 |
||
| Guelph | 30 |
9 |
8.3 |
||
| Hamilton Downtown | 31 |
8 |
7.7 |
0.2 |
0.15 |
| Hamilton Mountain | 37 |
8 |
3.1 |
0.1 |
|
| Hamilton West | 29 |
8 |
10.5 |
||
| Kingston | 30 |
5 |
5 |
||
| Kitchener | 31 |
10 |
7 |
||
| London | 27 |
10 |
10.7 |
||
| Milton | 29 |
9 |
10.9 |
0.2 |
|
| Mississauga | 28 |
9 |
11.8 |
||
| Newmarket | 27 |
13 |
12.7 |
||
| North Bay | 34 |
4 |
3.6 |
||
| Oakville | 28 |
9 |
10.8 |
||
| Oshawa | 5 |
9 |
23.4 |
||
| Ottawa Downtown | 21 |
5 |
15 |
||
| Parry Sound | 36 |
6 |
2.3 |
||
| Peterborough | 1 |
13 |
31.9 |
||
| Port Stanley | 33 |
9 |
3.1 |
||
| Sarnia | 18 |
17 |
16.2 |
8 |
|
| Sault Ste. Marie | 26 |
5 |
11.5 |
0 |
|
| St. Catharines | 31 |
8 |
8.2 |
||
| Sudbury | 28 |
9 |
7.8 |
0.1 |
|
| Thunder Bay | 4 |
5 |
40.1 |
||
| Tiverton | 30 |
10 |
|||
| Toronto Downtown | 14 |
11 |
34.4 |
||
| Toronto East | 22 |
10 |
17.5 |
||
| Toronto North | 25 |
12 |
13.5 |
0.7 |
|
| Toronto West | 25 |
8 |
15.1 |
0 |
0.15 |
| Windsor Downtown | 6 |
17 |
28.3 |
0.1 |
0.27 |
| Windsor West | 13 |
16 |
16.2 |
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.
