Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 24 |
3 |
2.7 |
||
| Sault Ste. Marie | 25 |
2 |
2 |
0 |
|
| Windsor West | 23 |
6 |
14.1 |
0.1 |
|
| Windsor Downtown | 20 |
6 |
17.7 |
0 |
0.23 |
| Sarnia | 33 |
1 |
1.3 |
0 |
|
| Chatham | 30 |
3 |
1.9 |
||
| Grand Bend | 32 |
2 |
0.7 |
||
| Tiverton | 27 |
1 |
|||
| London | 22 |
4 |
9.2 |
||
| Port Stanley | 30 |
2 |
2.6 |
||
| Sudbury | 29 |
1 |
2.6 |
0.1 |
|
| Kitchener | 28 |
3 |
4.4 |
||
| Brantford | 15 |
4 |
7.9 |
||
| Guelph | 24 |
3 |
3.8 |
||
| Parry Sound | 31 |
1 |
0.7 |
||
| Hamilton West | 12 |
4 |
10.3 |
||
| Hamilton Mountain | 11 |
4 |
10 |
0.4 |
|
| Milton | 13 |
5 |
18.7 |
N/A |
|
| Hamilton Downtown | 8 |
5 |
15.6 |
0.3 |
0.23 |
| Burlington | 7 |
4 |
19.9 |
||
| Brampton | 22 |
3 |
7.7 |
||
| Barrie | 21 |
4 |
6.1 |
||
| Oakville | 14 |
4 |
14 |
||
| Mississauga | 12 |
3 |
17.7 |
||
| Toronto West | 4 |
7 |
28.6 |
0.2 |
0.32 |
| Newmarket | 29 |
2 |
3 |
||
| Toronto North | 12 |
5 |
19.3 |
0 |
|
| North Bay | 27 |
2 |
1.5 |
||
| Toronto Downtown | 8 |
3 |
27.9 |
||
| Toronto East | 9 |
4 |
23.1 |
||
| St. Catharines | 18 |
4 |
13 |
||
| Dorset | 21 |
1 |
|||
| Oshawa | 25 |
2 |
1.9 |
||
| Peterborough | 25 |
3 |
2.6 |
||
| Belleville | 29 |
2 |
1.6 |
||
| Kingston | 27 |
2 |
2.5 |
||
| Ottawa Downtown | 30 |
2 |
2.9 |
||
| Cornwall | 33 |
1 |
0.8 |
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.
