Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 27 |
8 |
0.9 |
||
| Belleville | 30 |
3 |
1.3 |
||
| Brampton | 15 |
11 |
8.7 |
||
| Brantford | 22 |
5 |
1.7 |
||
| Burlington | 3 |
11 |
19.8 |
||
| Chatham | 31 |
4 |
0.1 |
||
| Cornwall | 25 |
4 |
1 |
||
| Dorset | 1 |
7 |
|||
| Grand Bend | 27 |
3 |
0.2 |
||
| Guelph | 20 |
8 |
1.8 |
||
| Hamilton Downtown | 3 |
10 |
12.5 |
2.5 |
0.39 |
| Hamilton Mountain | 25 |
6 |
3.5 |
0.6 |
|
| Hamilton West | 1 |
11 |
16.9 |
||
| Kingston | N/A |
N/A |
N/A |
||
| Kitchener | 20 |
6 |
2.2 |
||
| London | 18 |
6 |
3.4 |
||
| Milton | 13 |
10 |
7.8 |
0 |
|
| Mississauga | 6 |
8 |
9.4 |
||
| Newmarket | 15 |
12 |
7.3 |
||
| North Bay | 14 |
4 |
0 |
||
| Oakville | 14 |
10 |
7.3 |
||
| Oshawa | 10 |
8 |
3.5 |
||
| Ottawa Downtown | 18 |
7 |
3.3 |
||
| Parry Sound | 28 |
6 |
0.8 |
||
| Peterborough | 22 |
7 |
1.9 |
||
| Port Stanley | 28 |
5 |
1.6 |
||
| Sarnia | 32 |
4 |
0.8 |
0 |
|
| Sault Ste. Marie | 12 |
3 |
1.1 |
0 |
|
| St. Catharines | 30 |
7 |
3.6 |
||
| Sudbury | 18 |
3 |
0.2 |
0.1 |
|
| Thunder Bay | 11 |
4 |
2.3 |
||
| Tiverton | 21 |
3 |
|||
| Toronto Downtown | 26 |
9 |
12.9 |
||
| Toronto East | 15 |
11 |
10.7 |
||
| Toronto North | N/A |
N/A |
N/A |
N/A |
|
| Toronto West | 18 |
7 |
6.6 |
0 |
0.25 |
| Windsor Downtown | 25 |
4 |
11.2 |
0 |
0.21 |
| Windsor West | 24 |
5 |
8.2 |
0 |
Order by station location (east to west)
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.
