Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 31 |
3 |
6.1 |
||
| Belleville | 42 |
2 |
1.5 |
||
| Brampton | 34 |
2 |
4.3 |
||
| Brantford | 30 |
3 |
4.4 |
||
| Burlington | N/A |
4 |
17.4 |
||
| Chatham | 27 |
4 |
7.1 |
||
| Cornwall | 37 |
3 |
2.8 |
||
| Dorset | N/A |
N/A |
|||
| Grand Bend | 26 |
3 |
1 |
||
| Guelph | 30 |
3 |
4.2 |
||
| Hamilton Downtown | 30 |
4 |
6.6 |
0.2 |
0.17 |
| Hamilton Mountain | 30 |
3 |
5.9 |
0 |
|
| Hamilton West | 25 |
3 |
12.1 |
||
| Kingston | 38 |
3 |
1.9 |
||
| Kitchener | 29 |
3 |
5.2 |
||
| London | 18 |
5 |
13.1 |
||
| Milton | 33 |
3 |
4.9 |
0.2 |
|
| Mississauga | 35 |
3 |
4.1 |
||
| Newmarket | 35 |
3 |
2.3 |
||
| North Bay | 24 |
3 |
13.7 |
||
| Oakville | 34 |
2 |
2.4 |
||
| Oshawa | 34 |
2 |
1.7 |
||
| Ottawa Downtown | 38 |
2 |
2.5 |
||
| Parry Sound | 39 |
2 |
0.6 |
||
| Peterborough | 41 |
2 |
1.1 |
||
| Port Stanley | 38 |
3 |
2 |
||
| Sarnia | 23 |
5 |
13.7 |
0 |
|
| Sault Ste. Marie | 22 |
7 |
22.7 |
0 |
|
| St. Catharines | 27 |
4 |
8.2 |
||
| Sudbury | 29 |
3 |
14.3 |
0 |
|
| Thunder Bay | 36 |
3 |
3.1 |
||
| Tiverton | 26 |
3 |
|||
| Toronto Downtown | 21 |
4 |
33.1 |
||
| Toronto East | 27 |
4 |
11.3 |
||
| Toronto North | 27 |
4 |
10 |
0 |
|
| Toronto West | 22 |
3 |
19.1 |
0 |
0.22 |
| Windsor Downtown | 9 |
10 |
36.4 |
0 |
0.45 |
| Windsor West | 5 |
6 |
36.9 |
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.
