Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 28 |
3 |
5.5 |
||
| Belleville | 35 |
2 |
3 |
||
| Brampton | 32 |
2 |
4 |
||
| Brantford | 30 |
2 |
1.8 |
||
| Burlington | 22 |
5 |
15.2 |
||
| Chatham | 40 |
4 |
5.9 |
||
| Cornwall | 33 |
21 |
5.1 |
||
| Dorset | 30 |
2 |
|||
| Grand Bend | 36 |
2 |
1.7 |
||
| Guelph | 31 |
3 |
5.2 |
||
| Hamilton Downtown | 24 |
3 |
10.7 |
0.3 |
0.19 |
| Hamilton Mountain | 30 |
3 |
5.2 |
0.1 |
|
| Hamilton West | 26 |
3 |
10.1 |
||
| Kingston | 31 |
7 |
7.3 |
||
| Kitchener | 31 |
2 |
3.8 |
||
| London | 33 |
3 |
5.4 |
||
| Milton | 25 |
4 |
12.1 |
0.4 |
|
| Mississauga | 30 |
3 |
6.5 |
||
| Newmarket | 31 |
3 |
3.9 |
||
| North Bay | 14 |
4 |
19.3 |
||
| Oakville | 30 |
3 |
5.6 |
||
| Oshawa | 32 |
3 |
3.4 |
||
| Ottawa Downtown | 28 |
34 |
11.2 |
||
| Parry Sound | 24 |
4 |
8.8 |
||
| Peterborough | 33 |
3 |
2.4 |
||
| Port Stanley | 37 |
3 |
3.4 |
||
| Sarnia | 36 |
3 |
2.5 |
0.2 |
|
| Sault Ste. Marie | 32 |
2 |
5 |
0.1 |
|
| St. Catharines | 30 |
3 |
7.4 |
||
| Sudbury | 31 |
2 |
0.4 |
0.1 |
|
| Thunder Bay | 16 |
6 |
26.8 |
||
| Tiverton | 35 |
3 |
|||
| Toronto Downtown | 17 |
5 |
30.7 |
||
| Toronto East | 23 |
4 |
13.9 |
||
| Toronto North | 24 |
3 |
10.9 |
0.7 |
|
| Toronto West | 14 |
4 |
18.7 |
0.1 |
1.48 |
| Windsor Downtown | 28 |
7 |
13.8 |
0.2 |
0.2 |
| Windsor West | 32 |
5 |
8.1 |
0.3 |
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.
