Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 30 |
3 |
5 |
||
| Sault Ste. Marie | 24 |
3 |
9.6 |
0.2 |
|
| Windsor West | 30 |
5 |
10.4 |
0 |
|
| Windsor Downtown | 29 |
5 |
11.6 |
0.3 |
N/A |
| Sarnia | 35 |
4 |
4.8 |
N/A |
|
| Chatham | 40 |
3 |
5.9 |
||
| Grand Bend | 37 |
3 |
1.3 |
||
| Tiverton | 37 |
1 |
|||
| London | 33 |
5 |
8.5 |
||
| Port Stanley | 32 |
7 |
5.5 |
||
| Sudbury | 29 |
3 |
3.7 |
0.1 |
|
| Kitchener | 32 |
6 |
7 |
||
| Brantford | 28 |
10 |
5.5 |
||
| Guelph | 27 |
9 |
12.7 |
||
| Parry Sound | 35 |
2 |
1.8 |
||
| Hamilton West | 26 |
13 |
12 |
||
| Hamilton Mountain | 28 |
16 |
7.2 |
0 |
|
| Milton | 24 |
16 |
15.5 |
0.2 |
|
| Hamilton Downtown | 24 |
15 |
11.3 |
0.2 |
0.2 |
| Burlington | 26 |
17 |
12.7 |
||
| Brampton | 32 |
8 |
7.8 |
||
| Barrie | 34 |
4 |
6.6 |
||
| Oakville | 27 |
17 |
13.6 |
||
| Mississauga | 29 |
15 |
11 |
||
| Toronto West | 4 |
9 |
42.2 |
0.3 |
0.22 |
| Newmarket | 37 |
5 |
4.1 |
||
| Toronto North | 26 |
7 |
14.7 |
0.8 |
|
| North Bay | 32 |
2 |
1.1 |
||
| Toronto Downtown | N/A |
13 |
N/A |
||
| Toronto East | 22 |
6 |
19.2 |
||
| St. Catharines | 29 |
11 |
7.8 |
||
| Dorset | 28 |
4 |
|||
| Oshawa | 24 |
8 |
13.8 |
||
| Peterborough | 34 |
6 |
6.4 |
||
| Belleville | 17 |
12 |
15.9 |
||
| Kingston | 12 |
14 |
27.6 |
||
| Ottawa Downtown | 4 |
31 |
29.4 |
||
| Cornwall | 31 |
7 |
5.3 |
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.
