Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 20 |
16 |
9.4 |
||
| Belleville | 19 |
23 |
10.6 |
||
| Brampton | 19 |
12 |
7.8 |
||
| Brantford | 8 |
7 |
14.6 |
||
| Burlington | 7 |
9 |
20.4 |
||
| Chatham | 8 |
5 |
13.8 |
||
| Cornwall | 12 |
22 |
17.6 |
||
| Dorset | 28 |
11 |
|||
| Grand Bend | 18 |
14 |
6.1 |
||
| Guelph | 15 |
6 |
9.3 |
||
| Hamilton Downtown | 5 |
8 |
19.9 |
0 |
0.3 |
| Hamilton Mountain | 7 |
8 |
15.8 |
0 |
|
| Hamilton West | 4 |
8 |
23.2 |
||
| Kingston | 8 |
24 |
23.6 |
||
| Kitchener | 11 |
8 |
13.6 |
||
| London | 13 |
9 |
11.6 |
||
| Milton | 18 |
10 |
8.5 |
0.2 |
|
| Mississauga | 5 |
13 |
21.7 |
||
| Newmarket | 20 |
15 |
7.3 |
||
| North Bay | 25 |
10 |
2.2 |
||
| Oakville | 7 |
12 |
17.7 |
||
| Oshawa | 22 |
8 |
5.6 |
||
| Ottawa Downtown | 21 |
16 |
7.1 |
||
| Parry Sound | 22 |
14 |
5.2 |
||
| Peterborough | 22 |
16 |
3.4 |
||
| Port Stanley | 16 |
6 |
6 |
||
| Sarnia | 16 |
10 |
6.4 |
0.1 |
|
| Sault Ste. Marie | 2 |
27 |
18.5 |
0.1 |
|
| St. Catharines | 8 |
14 |
12.5 |
||
| Sudbury | 16 |
26 |
8 |
0.5 |
|
| Tiverton | 18 |
13 |
|||
| Toronto Downtown | 9 |
12 |
19.1 |
||
| Toronto East | 7 |
12 |
21.9 |
||
| Toronto North | 12 |
13 |
13.1 |
0.4 |
|
| Toronto West | 6 |
14 |
16.3 |
0 |
0.28 |
| Windsor Downtown | 7 |
17 |
13.1 |
0 |
N/A |
| Windsor West | 7 |
18 |
13.2 |
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.
