Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 30 |
2 |
0.7 |
||
| Belleville | 32 |
1 |
1.4 |
||
| Brampton | 22 |
5 |
8 |
||
| Brantford | 35 |
3 |
3.6 |
||
| Burlington | 23 |
3 |
7.4 |
||
| Chatham | 29 |
3 |
2.6 |
||
| Cornwall | 40 |
3 |
1.1 |
||
| Dorset | 36 |
1 |
|||
| Grand Bend | 31 |
2 |
1.3 |
||
| Guelph | 38 |
2 |
1.4 |
||
| Hamilton Downtown | 13 |
8 |
13.7 |
7.5 |
0.37 |
| Hamilton Mountain | 16 |
13 |
12.1 |
6.4 |
|
| Hamilton West | 12 |
8 |
17.6 |
||
| Kingston | 28 |
3 |
2.2 |
||
| Kitchener | 35 |
3 |
3.3 |
||
| London | 35 |
5 |
2 |
||
| Milton | 22 |
4 |
7 |
0.2 |
|
| Mississauga | 22 |
4 |
6.4 |
||
| Newmarket | 33 |
3 |
2.1 |
||
| North Bay | 18 |
2 |
1.3 |
||
| Oakville | 18 |
7 |
10.3 |
||
| Oshawa | 36 |
2 |
1.9 |
||
| Ottawa Downtown | 33 |
3 |
2.3 |
||
| Parry Sound | 21 |
2 |
1.5 |
||
| Peterborough | 37 |
2 |
1.1 |
||
| Port Stanley | 40 |
4 |
2.6 |
||
| Sarnia | 28 |
2 |
5.4 |
0.2 |
|
| Sault Ste. Marie | 30 |
4 |
0.9 |
0 |
|
| St. Catharines | 20 |
4 |
3.7 |
||
| Sudbury | 21 |
5 |
3.6 |
0.2 |
|
| Thunder Bay | 27 |
4 |
2.6 |
||
| Tiverton | 30 |
2 |
|||
| Toronto Downtown | 16 |
4 |
11.6 |
||
| Toronto East | 26 |
3 |
2.4 |
||
| Toronto North | 23 |
3 |
4.9 |
0 |
|
| Toronto West | 23 |
4 |
6.3 |
0 |
0.21 |
| Windsor Downtown | 37 |
6 |
3.8 |
0.4 |
0.21 |
| Windsor West | 30 |
6 |
6 |
0.1 |
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.
