Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 8 |
8 |
19.6 |
||
| Belleville | 29 |
2 |
5.3 |
||
| Brampton | 19 |
5 |
9.7 |
||
| Brantford | 28 |
8 |
2.2 |
||
| Burlington | 26 |
7 |
14.2 |
||
| Chatham | 19 |
6 |
6.5 |
||
| Cornwall | 28 |
2 |
1.7 |
||
| Dorset | 29 |
1 |
|||
| Grand Bend | 33 |
7 |
3.2 |
||
| Guelph | 33 |
6 |
4.4 |
||
| Hamilton Downtown | 30 |
6 |
9.6 |
0.1 |
0.16 |
| Hamilton Mountain | 37 |
6 |
3.8 |
0 |
|
| Hamilton West | 30 |
7 |
8.5 |
||
| Kingston | 28 |
2 |
5.1 |
||
| Kitchener | 26 |
6 |
7.1 |
||
| London | 5 |
8 |
13.2 |
||
| Milton | 16 |
8 |
15.5 |
0.2 |
|
| Mississauga | 22 |
6 |
7.4 |
||
| Newmarket | 12 |
4 |
16.5 |
||
| North Bay | 32 |
2 |
1 |
||
| Oakville | 28 |
7 |
4.5 |
||
| Oshawa | 8 |
3 |
7.3 |
||
| Ottawa Downtown | 25 |
2 |
3.7 |
||
| Parry Sound | 37 |
1 |
0.7 |
||
| Peterborough | 19 |
3 |
9.6 |
||
| Port Stanley | 38 |
8 |
2.3 |
||
| Sarnia | 21 |
9 |
19.5 |
0 |
|
| Sault Ste. Marie | 7 |
5 |
14.2 |
0.1 |
|
| St. Catharines | 28 |
6 |
5.7 |
||
| Sudbury | 21 |
3 |
10.3 |
0 |
|
| Thunder Bay | 6 |
7 |
13.4 |
||
| Tiverton | 22 |
4 |
|||
| Toronto Downtown | 11 |
2 |
25.8 |
||
| Toronto East | 30 |
3 |
9 |
||
| Toronto North | 23 |
4 |
12.5 |
0.1 |
|
| Toronto West | 4 |
7 |
29.8 |
0.3 |
0.35 |
| Windsor Downtown | 22 |
11 |
14.2 |
0 |
0.23 |
| Windsor West | 5 |
9 |
27.1 |
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.
