Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 22 |
69 |
1.6 |
||
| Sault Ste. Marie | 11 |
19 |
2.3 |
0.1 |
|
| Windsor West | 26 |
6 |
4.5 |
0.3 |
|
| Windsor Downtown | 26 |
5 |
6.3 |
0 |
0.13 |
| Sarnia | 30 |
7 |
7.8 |
0.2 |
|
| Chatham | 28 |
5 |
4.1 |
||
| Grand Bend | 16 |
7 |
2.9 |
||
| Tiverton | 48 |
5 |
|||
| London | 21 |
7 |
2.9 |
||
| Port Stanley | 34 |
7 |
1.8 |
||
| Sudbury | 30 |
5 |
1.9 |
2 |
|
| Kitchener | 26 |
7 |
2 |
||
| Brantford | 21 |
7 |
2.1 |
||
| Guelph | 30 |
7 |
2.1 |
||
| Parry Sound | 44 |
6 |
0.9 |
||
| Hamilton West | 28 |
7 |
5 |
||
| Hamilton Mountain | 29 |
0 |
1.9 |
0.2 |
|
| Milton | 31 |
9 |
3.9 |
0.2 |
|
| Hamilton Downtown | 29 |
8 |
2.1 |
0.2 |
0.16 |
| Burlington | 30 |
7 |
3.9 |
||
| Brampton | 32 |
8 |
3.1 |
||
| Barrie | 24 |
10 |
2.2 |
||
| Oakville | 42 |
7 |
1.9 |
||
| Mississauga | 33 |
6 |
1.7 |
||
| Toronto West | 25 |
10 |
13.7 |
0.3 |
N/A |
| Newmarket | 35 |
11 |
1.9 |
||
| Toronto North | 35 |
10 |
4.5 |
0.4 |
|
| North Bay | 44 |
4 |
1.5 |
||
| Toronto Downtown | 35 |
7 |
5.8 |
||
| Toronto East | 34 |
8 |
3.2 |
||
| St. Catharines | 33 |
7 |
1.8 |
||
| Dorset | 4 |
7 |
|||
| Oshawa | 6 |
10 |
3.8 |
||
| Peterborough | 31 |
7 |
4.5 |
||
| Belleville | 33 |
8 |
2.3 |
||
| Kingston | 33 |
8 |
0.9 |
||
| Ottawa Downtown | 24 |
9 |
3.2 |
||
| Cornwall | 29 |
7 |
1.2 |
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.
