Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 38 |
6 |
1.2 |
||
| Belleville | 63 |
7 |
1.5 |
||
| Brampton | 51 |
8 |
2.6 |
||
| Brantford | 40 |
7 |
1.3 |
||
| Burlington | 50 |
8 |
6.1 |
||
| Chatham | 75 |
11 |
1.8 |
||
| Cornwall | 46 |
5 |
1.2 |
||
| Dorset | 42 |
5 |
|||
| Grand Bend | 52 |
8 |
1.1 |
||
| Guelph | 48 |
9 |
1.9 |
||
| Hamilton Downtown | 48 |
9 |
2.5 |
0.2 |
0.18 |
| Hamilton Mountain | 54 |
8 |
2.1 |
0.1 |
|
| Hamilton West | 50 |
9 |
3.2 |
||
| Kingston | 62 |
6 |
1.3 |
||
| Kitchener | 45 |
10 |
2.2 |
||
| London | 45 |
8 |
1.3 |
||
| Milton | 50 |
9 |
1.2 |
0.2 |
|
| Mississauga | 49 |
7 |
2.5 |
||
| Newmarket | 45 |
7 |
1.5 |
||
| North Bay | 29 |
13 |
0 |
||
| Oakville | 50 |
8 |
2.1 |
||
| Oshawa | 80 |
13 |
5.5 |
||
| Ottawa Downtown | 52 |
8 |
1.1 |
||
| Parry Sound | 31 |
9 |
1 |
||
| Peterborough | 51 |
6 |
0.9 |
||
| Port Stanley | 62 |
9 |
1.6 |
||
| Sarnia | 54 |
10 |
3.5 |
0.1 |
|
| Sault Ste. Marie | 41 |
7 |
2.1 |
0.1 |
|
| St. Catharines | 49 |
8 |
2 |
||
| Sudbury | N/A |
N/A |
N/A |
N/A |
|
| Thunder Bay | 39 |
7 |
3.9 |
||
| Tiverton | 37 |
9 |
|||
| Toronto Downtown | 54 |
10 |
18.3 |
||
| Toronto East | 52 |
10 |
7 |
||
| Toronto North | 42 |
3 |
3.1 |
0 |
|
| Toronto West | 35 |
5 |
14 |
0 |
0.27 |
| Windsor Downtown | 56 |
8 |
5 |
0.1 |
0.22 |
| Windsor West | 54 |
9 |
4.5 |
0.7 |
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.
