Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 6 |
3 |
22.8 |
||
| Belleville | 24 |
3 |
12.8 |
||
| Brampton | 1 |
4 |
28.6 |
||
| Brantford | 17 |
6 |
8.4 |
||
| Burlington | N/A |
5 |
7.1 |
||
| Chatham | 30 |
5 |
4.7 |
||
| Cornwall | 34 |
3 |
3.5 |
||
| Dorset | N/A |
N/A |
|||
| Grand Bend | 31 |
5 |
1.8 |
||
| Guelph | 19 |
4 |
13.2 |
||
| Hamilton Downtown | 0 |
6 |
26.6 |
0.4 |
0.44 |
| Hamilton Mountain | 11 |
6 |
16.7 |
0.1 |
|
| Hamilton West | 0 |
6 |
28.7 |
||
| Kingston | 31 |
3 |
6.8 |
||
| Kitchener | 13 |
6 |
14.5 |
||
| London | 25 |
7 |
5.7 |
||
| Milton | 1 |
6 |
35.6 |
0.4 |
|
| Mississauga | 1 |
4 |
25.4 |
||
| Newmarket | 4 |
4 |
27.6 |
||
| North Bay | 31 |
3 |
5.2 |
||
| Oakville | 5 |
4 |
34 |
||
| Oshawa | 5 |
3 |
15.5 |
||
| Ottawa Downtown | 29 |
3 |
8.4 |
||
| Parry Sound | 29 |
2 |
3.5 |
||
| Peterborough | 2 |
4 |
25.1 |
||
| Port Stanley | 28 |
5 |
4.7 |
||
| Sarnia | 31 |
4 |
7.2 |
0.2 |
|
| Sault Ste. Marie | 39 |
2 |
1.7 |
0.1 |
|
| St. Catharines | 11 |
5 |
21.3 |
||
| Sudbury | 29 |
2 |
12.5 |
0.1 |
|
| Thunder Bay | 38 |
3 |
1.2 |
||
| Tiverton | 33 |
3 |
|||
| Toronto Downtown | 18 |
2 |
32 |
||
| Toronto East | 0 |
5 |
36.7 |
||
| Toronto North | 1 |
8 |
31.6 |
0.1 |
|
| Toronto West | 1 |
5 |
42.4 |
0.2 |
0.38 |
| Windsor Downtown | 31 |
6 |
6.5 |
0 |
0.15 |
| Windsor West | 33 |
5 |
3.6 |
0.1 |
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.
