Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 41 |
4 |
0.8 |
||
| Belleville | 41 |
7 |
1.6 |
||
| Brampton | 48 |
8 |
6.6 |
||
| Brantford | 57 |
12 |
3.1 |
||
| Burlington | 45 |
5 |
2.2 |
||
| Chatham | 69 |
9 |
3.2 |
||
| Cornwall | 43 |
7 |
1.1 |
||
| Dorset | 37 |
4 |
|||
| Grand Bend | 49 |
7 |
1.2 |
||
| Guelph | 52 |
6 |
0.8 |
||
| Hamilton Downtown | 31 |
11 |
17.7 |
33.5 |
0.71 |
| Hamilton Mountain | 24 |
32 |
24.2 |
20 |
|
| Hamilton West | 39 |
9 |
10.4 |
||
| Kingston | 40 |
6 |
1.6 |
||
| Kitchener | 57 |
7 |
1.8 |
||
| London | 53 |
5 |
1.4 |
||
| Milton | 49 |
9 |
5.3 |
1 |
|
| Mississauga | 40 |
7 |
2.1 |
||
| Newmarket | 54 |
6 |
2.1 |
||
| North Bay | 39 |
6 |
0 |
||
| Oakville | 17 |
11 |
30.3 |
||
| Oshawa | 42 |
9 |
2.7 |
||
| Ottawa Downtown | 47 |
6 |
2 |
||
| Parry Sound | 44 |
9 |
3 |
||
| Peterborough | 37 |
6 |
1.7 |
||
| Port Stanley | 59 |
8 |
2.2 |
||
| Sarnia | 46 |
7 |
2.1 |
0.2 |
|
| Sault Ste. Marie | 49 |
10 |
2.4 |
0.2 |
|
| St. Catharines | 42 |
7 |
1.9 |
||
| Sudbury | 43 |
8 |
3 |
7.3 |
|
| Thunder Bay | 24 |
5 |
0.9 |
||
| Tiverton | 46 |
4 |
|||
| Toronto Downtown | 20 |
14 |
31.5 |
||
| Toronto East | 36 |
9 |
2.8 |
||
| Toronto North | 47 |
9 |
3.9 |
0.3 |
|
| Toronto West | 40 |
9 |
5.6 |
0.1 |
0.21 |
| Windsor Downtown | 67 |
15 |
7.4 |
0.3 |
0.25 |
| Windsor West | 75 |
16 |
5.5 |
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.
