Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 20 |
13 |
24.3 |
||
| Belleville | 31 |
5 |
8.9 |
||
| Brampton | 29 |
7 |
16.6 |
||
| Brantford | 9 |
11 |
6.8 |
||
| Burlington | 32 |
7 |
21.1 |
||
| Chatham | 28 |
9 |
11.3 |
||
| Cornwall | 36 |
4 |
4.1 |
||
| Dorset | 16 |
4 |
|||
| Grand Bend | 26 |
10 |
3.2 |
||
| Guelph | 28 |
6 |
11.8 |
||
| Hamilton Downtown | N/A |
N/A |
N/A |
N/A |
N/A |
| Hamilton Mountain | 31 |
7 |
16.3 |
4.2 |
|
| Hamilton West | 3 |
11 |
30.3 |
||
| Kingston | 35 |
7 |
5.5 |
||
| Kitchener | 25 |
8 |
18.3 |
||
| London | 9 |
12 |
9.6 |
||
| Milton | 20 |
7 |
29.5 |
0.7 |
|
| Mississauga | 15 |
7 |
23.7 |
||
| Newmarket | 24 |
11 |
19.3 |
||
| North Bay | 19 |
6 |
12.5 |
||
| Oakville | 27 |
7 |
21.9 |
||
| Oshawa | 21 |
6 |
6.9 |
||
| Ottawa Downtown | 32 |
4 |
6.8 |
||
| Parry Sound | 12 |
6 |
4.5 |
||
| Peterborough | 31 |
6 |
9.1 |
||
| Port Stanley | 24 |
11 |
13.1 |
||
| Sarnia | 26 |
17 |
13.8 |
0 |
|
| Sault Ste. Marie | 35 |
5 |
2 |
0.2 |
|
| St. Catharines | 6 |
11 |
28.8 |
||
| Sudbury | 30 |
6 |
7.8 |
0.2 |
|
| Thunder Bay | 39 |
3 |
2.8 |
||
| Tiverton | 30 |
7 |
|||
| Toronto Downtown | 31 |
5 |
16.9 |
||
| Toronto East | 14 |
16 |
33.7 |
||
| Toronto North | 25 |
10 |
21.9 |
0 |
|
| Toronto West | 14 |
9 |
34.5 |
0.2 |
0.35 |
| Windsor Downtown | 33 |
14 |
9.6 |
0.3 |
0.25 |
| Windsor West | 22 |
17 |
17.5 |
0.4 |
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.
