Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 31 |
3 |
3.7 |
||
| Belleville | 32 |
2 |
2.2 |
||
| Brampton | 25 |
4 |
5.7 |
||
| Brantford | 18 |
5 |
4.5 |
||
| Burlington | 23 |
5 |
7.3 |
||
| Chatham | 15 |
6 |
14.5 |
||
| Cornwall | 31 |
2 |
2.6 |
||
| Dorset | 27 |
3 |
|||
| Grand Bend | 24 |
6 |
2.3 |
||
| Guelph | 19 |
5 |
11.5 |
||
| Hamilton Downtown | 20 |
5 |
9.8 |
0.1 |
0.16 |
| Hamilton Mountain | 25 |
5 |
4.2 |
0.1 |
|
| Hamilton West | 15 |
5 |
14.7 |
||
| Kingston | 28 |
2 |
3.7 |
||
| Kitchener | 18 |
7 |
10.7 |
||
| London | 9 |
8 |
22.4 |
||
| Milton | 23 |
6 |
9.1 |
0.2 |
|
| Mississauga | 26 |
5 |
4.9 |
||
| Newmarket | 33 |
4 |
1.1 |
||
| North Bay | 23 |
3 |
5.8 |
||
| Oakville | 25 |
5 |
4.6 |
||
| Oshawa | 31 |
3 |
3.6 |
||
| Ottawa Downtown | 33 |
1 |
2.8 |
||
| Parry Sound | 32 |
2 |
1.8 |
||
| Peterborough | 32 |
2 |
2.6 |
||
| Port Stanley | 28 |
5 |
2.9 |
||
| Sarnia | 9 |
8 |
21.5 |
2.9 |
|
| Sault Ste. Marie | 30 |
3 |
2.3 |
0.1 |
|
| St. Catharines | 25 |
5 |
6 |
||
| Sudbury | 18 |
3 |
18.6 |
0.3 |
|
| Thunder Bay | 21 |
7 |
7.6 |
||
| Tiverton | 35 |
4 |
|||
| Toronto Downtown | 26 |
2 |
9.7 |
||
| Toronto East | 28 |
4 |
7.4 |
||
| Toronto North | N/A |
N/A |
N/A |
N/A |
|
| Toronto West | 10 |
5 |
21.6 |
0.2 |
0.3 |
| Windsor Downtown | 3 |
14 |
30.5 |
0.1 |
N/A |
| Windsor West | 8 |
15 |
21.2 |
0.8 |
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.
