Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 29 |
2 |
4.4 |
||
| Belleville | 26 |
2 |
2.7 |
||
| Brampton | 29 |
2 |
3.4 |
||
| Brantford | 17 |
5 |
4.6 |
||
| Burlington | 13 |
3 |
15.5 |
||
| Chatham | 18 |
9 |
13.9 |
||
| Cornwall | 21 |
13 |
6.7 |
||
| Dorset | 31 |
1 |
|||
| Grand Bend | 26 |
3 |
2.5 |
||
| Guelph | 23 |
4 |
7.9 |
||
| Hamilton Downtown | 18 |
3 |
10.4 |
0.1 |
0.21 |
| Hamilton Mountain | 22 |
3 |
4.9 |
0 |
|
| Hamilton West | 21 |
2 |
5.9 |
||
| Kingston | 25 |
3 |
3.3 |
||
| Kitchener | 19 |
3 |
7.8 |
||
| London | 25 |
8 |
8.2 |
||
| Milton | 18 |
3 |
14.5 |
0.3 |
|
| Mississauga | 26 |
2 |
6.3 |
||
| Newmarket | 30 |
2 |
3.2 |
||
| North Bay | 12 |
4 |
17 |
||
| Oakville | 23 |
3 |
6.4 |
||
| Oshawa | 28 |
2 |
1.9 |
||
| Ottawa Downtown | N/A |
N/A |
N/A |
||
| Parry Sound | 30 |
1 |
1 |
||
| Peterborough | 24 |
1 |
1 |
||
| Port Stanley | 26 |
9 |
5.1 |
||
| Sarnia | 3 |
8 |
30.7 |
0.6 |
|
| Sault Ste. Marie | 29 |
2 |
6.7 |
0.1 |
|
| St. Catharines | 17 |
5 |
10.6 |
||
| Sudbury | 11 |
6 |
28.2 |
0.2 |
|
| Thunder Bay | 16 |
6 |
16.3 |
||
| Tiverton | 28 |
3 |
|||
| Toronto Downtown | 18 |
7 |
16.1 |
||
| Toronto East | 21 |
3 |
10 |
||
| Toronto North | 21 |
3 |
9.6 |
0.4 |
|
| Toronto West | 11 |
4 |
16.6 |
0.2 |
0.99 |
| Windsor Downtown | 13 |
19 |
23.2 |
0.2 |
0.31 |
| Windsor West | 21 |
17 |
11.5 |
0.8 |
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.
