Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 35 |
5 |
1.6 |
||
| Sault Ste. Marie | 27 |
7 |
1.6 |
0 |
|
| Windsor West | 49 |
7 |
6.3 |
0.1 |
|
| Windsor Downtown | 53 |
6 |
6.2 |
0.1 |
0.16 |
| Sarnia | 56 |
8 |
7.5 |
0.6 |
|
| Chatham | 55 |
6 |
5.2 |
||
| Grand Bend | 38 |
5 |
2.4 |
||
| Tiverton | 48 |
8 |
|||
| London | 25 |
5 |
3.5 |
||
| Port Stanley | 24 |
5 |
3.3 |
||
| Sudbury | 32 |
8 |
1.8 |
0.3 |
|
| Kitchener | 38 |
6 |
3.4 |
||
| Brantford | 25 |
8 |
9.9 |
||
| Guelph | 37 |
7 |
5.3 |
||
| Parry Sound | 47 |
8 |
2.7 |
||
| Hamilton West | 15 |
12 |
27.9 |
||
| Hamilton Mountain | 34 |
9 |
10.4 |
7.3 |
|
| Milton | 55 |
8 |
2.6 |
0.3 |
|
| Hamilton Downtown | 24 |
7 |
15.8 |
2.2 |
0.25 |
| Burlington | 51 |
6 |
2.5 |
||
| Brampton | 40 |
7 |
10.6 |
||
| Barrie | 32 |
9 |
8.9 |
||
| Oakville | 47 |
6 |
5.6 |
||
| Mississauga | 30 |
6 |
4.8 |
||
| Toronto West | 41 |
6 |
6.4 |
0.1 |
0.23 |
| Newmarket | 45 |
8 |
5.4 |
||
| Toronto North | 46 |
7 |
6.9 |
0 |
|
| North Bay | 35 |
10 |
4.4 |
||
| Toronto Downtown | 34 |
9 |
27.5 |
||
| Toronto East | 42 |
7 |
7.4 |
||
| St. Catharines | 47 |
5 |
2.8 |
||
| Dorset | 17 |
7 |
|||
| Oshawa | 20 |
10 |
9.1 |
||
| Peterborough | 42 |
5 |
2.8 |
||
| Belleville | 33 |
7 |
12.1 |
||
| Kingston | 34 |
9 |
6.2 |
||
| Ottawa Downtown | 39 |
6 |
5.4 |
||
| Cornwall | 20 |
8 |
7.5 |
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.
