Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 3 |
9 |
37.5 |
||
| Sault Ste. Marie | 27 |
2 |
9.3 |
0.1 |
|
| Windsor West | 15 |
6 |
25.3 |
0.1 |
|
| Windsor Downtown | 19 |
8 |
23 |
0.2 |
0.29 |
| Sarnia | 30 |
7 |
8.1 |
0.1 |
|
| Chatham | 39 |
3 |
4.3 |
||
| Grand Bend | 36 |
2 |
1.3 |
||
| Tiverton | 35 |
3 |
|||
| London | 31 |
3 |
6.8 |
||
| Port Stanley | 36 |
3 |
2.4 |
||
| Sudbury | 30 |
3 |
1.3 |
0.1 |
|
| Kitchener | 30 |
3 |
5.5 |
||
| Brantford | 31 |
2 |
1.6 |
||
| Guelph | 30 |
3 |
5.9 |
||
| Parry Sound | 21 |
5 |
9.5 |
||
| Hamilton West | 29 |
3 |
6.3 |
||
| Hamilton Mountain | 28 |
3 |
6.2 |
0 |
|
| Milton | 22 |
4 |
15.9 |
0.2 |
|
| Hamilton Downtown | 26 |
3 |
8.2 |
0.2 |
0.17 |
| Burlington | 23 |
4 |
13.2 |
||
| Brampton | 29 |
3 |
5.9 |
||
| Barrie | 28 |
3 |
5.5 |
||
| Oakville | 25 |
3 |
12.1 |
||
| Mississauga | 29 |
3 |
7 |
||
| Toronto West | 17 |
4 |
15.4 |
0.1 |
1.46 |
| Newmarket | 31 |
3 |
3.4 |
||
| Toronto North | 25 |
3 |
10.3 |
0.8 |
|
| North Bay | 1 |
9 |
38.6 |
||
| Toronto Downtown | 18 |
4 |
27.5 |
||
| Toronto East | 26 |
3 |
9.9 |
||
| St. Catharines | 27 |
4 |
8.9 |
||
| Dorset | 31 |
3 |
|||
| Oshawa | 31 |
3 |
3.1 |
||
| Peterborough | 32 |
3 |
1.4 |
||
| Belleville | 33 |
3 |
3.5 |
||
| Kingston | 32 |
3 |
4.4 |
||
| Ottawa Downtown | 17 |
40 |
19.3 |
||
| Cornwall | 32 |
19 |
3.3 |
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.
