Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 2 |
17 |
69.3 |
||
| Belleville | 10 |
10 |
28 |
||
| Brampton | 9 |
4 |
34.2 |
||
| Brantford | 24 |
4 |
9.1 |
||
| Burlington | 3 |
6 |
40.2 |
||
| Chatham | 11 |
9 |
33.4 |
||
| Cornwall | 31 |
8 |
7.1 |
||
| Dorset | 23 |
4 |
|||
| Grand Bend | 31 |
5 |
2.3 |
||
| Guelph | 26 |
5 |
13.6 |
||
| Hamilton Downtown | 17 |
4 |
20.4 |
0.1 |
0.23 |
| Hamilton Mountain | 20 |
3 |
16.4 |
0 |
|
| Hamilton West | 4 |
6 |
39.1 |
||
| Kingston | 14 |
5 |
26 |
||
| Kitchener | 20 |
3 |
17.4 |
||
| London | 2 |
12 |
33 |
||
| Milton | 3 |
9 |
45.7 |
0.4 |
|
| Mississauga | 1 |
6 |
46.2 |
||
| Newmarket | 4 |
4 |
42.8 |
||
| North Bay | 4 |
6 |
30.2 |
||
| Oakville | 9 |
5 |
44.9 |
||
| Oshawa | 17 |
4 |
24.1 |
||
| Ottawa Downtown | 25 |
3 |
14.3 |
||
| Parry Sound | 10 |
7 |
20.1 |
||
| Peterborough | 34 |
3 |
5.8 |
||
| Port Stanley | 26 |
6 |
12.5 |
||
| Sarnia | 7 |
14 |
33.3 |
0.1 |
|
| Sault Ste. Marie | 30 |
4 |
6 |
0.1 |
|
| St. Catharines | 30 |
5 |
12.8 |
||
| Sudbury | 4 |
8 |
38.4 |
0.3 |
|
| Thunder Bay | 14 |
10 |
15.1 |
||
| Tiverton | 34 |
3 |
|||
| Toronto Downtown | 2 |
5 |
56.3 |
||
| Toronto East | 2 |
5 |
48.6 |
||
| Toronto North | 1 |
8 |
53.3 |
1 |
|
| Toronto West | 1 |
8 |
50.6 |
0.6 |
0.57 |
| Windsor Downtown | 1 |
21 |
46.3 |
0.4 |
0.6 |
| Windsor West | 1 |
12 |
41.4 |
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.
