Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 17 |
6 |
5.6 |
||
| Belleville | 23 |
2 |
1 |
||
| Brampton | 16 |
8 |
7.9 |
||
| Brantford | 12 |
12 |
5.4 |
||
| Burlington | 16 |
8 |
7.8 |
||
| Chatham | 29 |
10 |
3.4 |
||
| Cornwall | 19 |
2 |
1.1 |
||
| Dorset | 22 |
4 |
|||
| Grand Bend | 19 |
17 |
4 |
||
| Guelph | 16 |
8 |
7.4 |
||
| Hamilton Downtown | 5 |
13 |
16 |
1.9 |
0.35 |
| Hamilton Mountain | 7 |
14 |
11 |
3.3 |
|
| Hamilton West | 5 |
12 |
19.6 |
||
| Kingston | 20 |
3 |
1.6 |
||
| Kitchener | 10 |
11 |
11.1 |
||
| London | 22 |
19 |
6.9 |
||
| Milton | 15 |
11 |
8.8 |
0.2 |
|
| Mississauga | 16 |
8 |
5.1 |
||
| Newmarket | 23 |
5 |
3 |
||
| North Bay | 18 |
2 |
1.3 |
||
| Oakville | 18 |
8 |
4.9 |
||
| Oshawa | 22 |
4 |
2.2 |
||
| Ottawa Downtown | 17 |
2 |
3.9 |
||
| Parry Sound | 22 |
5 |
1.3 |
||
| Peterborough | 16 |
3 |
3.1 |
||
| Port Stanley | 28 |
14 |
4.6 |
||
| Sarnia | 12 |
16 |
16.6 |
10.4 |
|
| Sault Ste. Marie | 15 |
19 |
4.8 |
0 |
|
| St. Catharines | 12 |
9 |
11.8 |
||
| Sudbury | 19 |
3 |
1.4 |
0.2 |
|
| Thunder Bay | 26 |
4 |
0.9 |
||
| Tiverton | 21 |
24 |
|||
| Toronto Downtown | 11 |
13 |
14 |
||
| Toronto East | 21 |
6 |
3.7 |
||
| Toronto North | 20 |
8 |
4.9 |
0.5 |
|
| Toronto West | 13 |
8 |
7.4 |
0 |
0.19 |
| Windsor Downtown | 19 |
17 |
8.6 |
0 |
0.21 |
| Windsor West | 21 |
18 |
6.4 |
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.
