Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 32 |
2 |
4.9 |
||
| Belleville | 29 |
3 |
6.5 |
||
| Brampton | 12 |
3 |
25.9 |
||
| Brantford | 10 |
7 |
22.2 |
||
| Burlington | 16 |
4 |
22.1 |
||
| Chatham | 30 |
3 |
17.5 |
||
| Cornwall | 33 |
3 |
2.6 |
||
| Dorset | 25 |
3 |
|||
| Grand Bend | 35 |
3 |
1.4 |
||
| Guelph | 32 |
3 |
5.7 |
||
| Hamilton Downtown | 18 |
4 |
15.2 |
0.2 |
0.18 |
| Hamilton Mountain | 16 |
4 |
15.9 |
0.2 |
|
| Hamilton West | 1 |
8 |
38.3 |
||
| Kingston | 28 |
4 |
7.2 |
||
| Kitchener | 30 |
3 |
8 |
||
| London | 18 |
6 |
17.8 |
||
| Milton | 1 |
6 |
42.2 |
0.4 |
|
| Mississauga | 12 |
3 |
28.6 |
||
| Newmarket | 25 |
3 |
11.8 |
||
| North Bay | 17 |
3 |
16.2 |
||
| Oakville | 18 |
3 |
24.2 |
||
| Oshawa | 31 |
3 |
3.9 |
||
| Ottawa Downtown | 30 |
2 |
4.9 |
||
| Parry Sound | 26 |
6 |
2.9 |
||
| Peterborough | 32 |
3 |
2.7 |
||
| Port Stanley | 32 |
3 |
5.5 |
||
| Sarnia | 36 |
3 |
2.4 |
N/A |
|
| Sault Ste. Marie | 28 |
2 |
9.1 |
0.1 |
|
| St. Catharines | 33 |
2 |
5.8 |
||
| Sudbury | 31 |
1 |
3.8 |
0.1 |
|
| Thunder Bay | 29 |
3 |
6.3 |
||
| Tiverton | 37 |
1 |
|||
| Toronto Downtown | 12 |
3 |
N/A |
||
| Toronto East | 11 |
3 |
27.3 |
||
| Toronto North | 5 |
4 |
35.4 |
0.5 |
|
| Toronto West | 0 |
6 |
42.2 |
0.2 |
0.29 |
| Windsor Downtown | 13 |
9 |
30.5 |
0.2 |
0.28 |
| Windsor West | 0 |
6 |
45.3 |
0.2 |
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.
