Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 38 |
7 |
8.1 |
||
| Sault Ste. Marie | 38 |
7 |
1.6 |
0 |
|
| Windsor West | 49 |
8 |
3.4 |
0.2 |
|
| Windsor Downtown | 50 |
7 |
6 |
0.1 |
0.2 |
| Sarnia | 48 |
10 |
1.8 |
0 |
|
| Chatham | 60 |
9 |
1.2 |
||
| Grand Bend | 49 |
6 |
0.6 |
||
| Tiverton | 26 |
9 |
|||
| London | 23 |
6 |
4.4 |
||
| Port Stanley | 59 |
12 |
2 |
||
| Sudbury | N/A |
N/A |
N/A |
N/A |
|
| Kitchener | 31 |
12 |
2.7 |
||
| Brantford | 38 |
7 |
0.8 |
||
| Guelph | 41 |
12 |
3.3 |
||
| Parry Sound | 31 |
7 |
0.9 |
||
| Hamilton West | 46 |
9 |
2.8 |
||
| Hamilton Mountain | 50 |
9 |
2 |
0 |
|
| Milton | 47 |
8 |
4.1 |
0.2 |
|
| Hamilton Downtown | 45 |
9 |
2.5 |
0.2 |
0.21 |
| Burlington | 45 |
8 |
6.8 |
||
| Brampton | 40 |
7 |
5 |
||
| Barrie | 37 |
10 |
1.4 |
||
| Oakville | 54 |
8 |
4.3 |
||
| Mississauga | 52 |
7 |
4.3 |
||
| Toronto West | 34 |
8 |
10.1 |
0 |
0.29 |
| Newmarket | 45 |
7 |
1.8 |
||
| Toronto North | 37 |
8 |
8.4 |
0 |
|
| North Bay | 32 |
10 |
0 |
||
| Toronto Downtown | 54 |
10 |
14.4 |
||
| Toronto East | 32 |
9 |
11 |
||
| St. Catharines | 44 |
5 |
2.3 |
||
| Dorset | 34 |
6 |
|||
| Oshawa | 48 |
9 |
3.2 |
||
| Peterborough | 46 |
5 |
0.9 |
||
| Belleville | 73 |
9 |
1.7 |
||
| Kingston | 60 |
7 |
0.9 |
||
| Ottawa Downtown | 42 |
7 |
2.4 |
||
| Cornwall | 41 |
4 |
1.3 |
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.
