Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 15 |
18 |
14.5 |
||
| Belleville | 23 |
14 |
4.7 |
||
| Brampton | 6 |
16 |
26.1 |
||
| Brantford | 13 |
15 |
8.7 |
||
| Burlington | 21 |
15 |
9.5 |
||
| Chatham | 25 |
8 |
8.6 |
||
| Cornwall | 19 |
14 |
9.4 |
||
| Dorset | 23 |
12 |
|||
| Grand Bend | 24 |
13 |
4.6 |
||
| Guelph | 17 |
15 |
14.3 |
||
| Hamilton Downtown | 11 |
18 |
16.9 |
0.2 |
0.28 |
| Hamilton Mountain | 3 |
20 |
22.1 |
0.2 |
|
| Hamilton West | 9 |
16 |
22.1 |
||
| Kingston | 22 |
13 |
7.5 |
||
| Kitchener | 16 |
14 |
13 |
||
| London | 24 |
10 |
6.3 |
||
| Milton | 17 |
17 |
11.9 |
0.2 |
|
| Mississauga | 21 |
15 |
6.1 |
||
| Newmarket | 19 |
19 |
10.9 |
||
| North Bay | 20 |
5 |
10.5 |
||
| Oakville | 18 |
16 |
10.5 |
||
| Oshawa | 24 |
16 |
5.8 |
||
| Ottawa Downtown | 16 |
11 |
13.5 |
||
| Parry Sound | 19 |
16 |
11.7 |
||
| Peterborough | 16 |
16 |
10.7 |
||
| Port Stanley | 30 |
7 |
3.8 |
||
| Sarnia | 19 |
12 |
11.8 |
0.7 |
|
| Sault Ste. Marie | 19 |
12 |
4.4 |
0 |
|
| St. Catharines | 15 |
9 |
19.7 |
||
| Sudbury | 19 |
9 |
10.5 |
0.2 |
|
| Thunder Bay | 3 |
29 |
21.9 |
||
| Tiverton | 30 |
19 |
|||
| Toronto Downtown | 17 |
18 |
14.7 |
||
| Toronto East | 20 |
15 |
8.6 |
||
| Toronto North | 16 |
18 |
12.9 |
0.5 |
|
| Toronto West | 11 |
15 |
15.2 |
0 |
0.49 |
| Windsor Downtown | 24 |
11 |
8.4 |
0.1 |
N/A |
| Windsor West | 23 |
10 |
9.5 |
0.3 |
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.
