Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 30 |
13 |
3.6 |
||
| Belleville | N/A |
N/A |
N/A |
||
| Brampton | 11 |
10 |
20.4 |
||
| Brantford | 12 |
15 |
13.6 |
||
| Burlington | 25 |
18 |
6.9 |
||
| Chatham | 15 |
12 |
15.6 |
||
| Cornwall | N/A |
N/A |
N/A |
||
| Dorset | 31 |
8 |
|||
| Grand Bend | N/A |
N/A |
N/A |
||
| Guelph | 20 |
7 |
9.4 |
||
| Hamilton Downtown | N/A |
N/A |
N/A |
N/A |
N/A |
| Hamilton Mountain | 19 |
19 |
9.6 |
0.1 |
|
| Hamilton West | 9 |
24 |
22.6 |
||
| Kingston | N/A |
N/A |
N/A |
||
| Kitchener | 18 |
8 |
12.1 |
||
| London | 19 |
27 |
11.3 |
||
| Milton | 20 |
8 |
8.6 |
0.2 |
|
| Mississauga | 19 |
10 |
7.8 |
||
| Newmarket | 24 |
14 |
7.2 |
||
| North Bay | N/A |
N/A |
N/A |
||
| Oakville | 20 |
9 |
7.9 |
||
| Oshawa | 27 |
17 |
4.7 |
||
| Ottawa Downtown | 26 |
16 |
7.1 |
||
| Parry Sound | 29 |
16 |
4.7 |
||
| Peterborough | N/A |
N/A |
N/A |
||
| Port Stanley | 22 |
16 |
6.4 |
||
| Sarnia | 15 |
23 |
9.9 |
0.2 |
|
| Sault Ste. Marie | N/A |
N/A |
N/A |
N/A |
|
| St. Catharines | 16 |
21 |
11.2 |
||
| Sudbury | N/A |
N/A |
N/A |
N/A |
|
| Tiverton | 20 |
41 |
|||
| Toronto Downtown | 17 |
14 |
12 |
||
| Toronto East | 22 |
12 |
6.9 |
||
| Toronto North | 16 |
13 |
12.6 |
0.5 |
|
| Toronto West | 17 |
9 |
10.7 |
0 |
0.23 |
| Windsor Downtown | 2 |
31 |
23.7 |
0.1 |
N/A |
| Windsor West | 5 |
31 |
18 |
N/A |
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.
