Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 27 |
3 |
2.8 |
||
| Belleville | 30 |
4 |
2.7 |
||
| Brampton | 23 |
4 |
9.4 |
||
| Brantford | 35 |
0 |
4 |
||
| Burlington | 30 |
3 |
1.6 |
||
| Chatham | 56 |
15 |
3 |
||
| Cornwall | 22 |
5 |
5.4 |
||
| Dorset | 34 |
3 |
|||
| Grand Bend | 53 |
10 |
2.8 |
||
| Guelph | 34 |
7 |
5.9 |
||
| Hamilton Downtown | 16 |
6 |
16.1 |
17.8 |
0.22 |
| Hamilton Mountain | 15 |
8 |
13.9 |
18.9 |
|
| Hamilton West | 21 |
4 |
10.3 |
||
| Kingston | 31 |
3 |
2 |
||
| Kitchener | 39 |
8 |
6.3 |
||
| London | 52 |
11 |
2.7 |
||
| Milton | 27 |
5 |
5.6 |
0.1 |
|
| Mississauga | 28 |
3 |
2.1 |
||
| Newmarket | 25 |
6 |
8 |
||
| North Bay | 35 |
3 |
2.3 |
||
| Oakville | 21 |
6 |
11.3 |
||
| Oshawa | 24 |
4 |
6.4 |
||
| Ottawa Downtown | 20 |
5 |
6.2 |
||
| Parry Sound | 38 |
4 |
1.6 |
||
| Peterborough | 26 |
3 |
3 |
||
| Port Stanley | 50 |
12 |
2.7 |
||
| Sarnia | 66 |
13 |
6 |
3.7 |
|
| Sault Ste. Marie | 47 |
12 |
3 |
0.2 |
|
| St. Catharines | 23 |
5 |
6.4 |
||
| Sudbury | 30 |
5 |
6.1 |
0.1 |
|
| Thunder Bay | 19 |
4 |
2.2 |
||
| Tiverton | 45 |
9 |
|||
| Toronto Downtown | 17 |
5 |
19.5 |
||
| Toronto East | 26 |
3 |
3.5 |
||
| Toronto North | 23 |
4 |
7.7 |
0.1 |
|
| Toronto West | 22 |
4 |
9.7 |
0.2 |
0.2 |
| Windsor Downtown | 65 |
14 |
3.8 |
1 |
0.25 |
| Windsor West | 62 |
13 |
4.6 |
0.6 |
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.
