Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 27 |
13 |
16.8 |
||
| Belleville | 36 |
3 |
3.2 |
||
| Brampton | 32 |
14 |
9.8 |
||
| Brantford | 30 |
13 |
4.3 |
||
| Burlington | 28 |
13 |
13.7 |
||
| Chatham | 42 |
17 |
7.8 |
||
| Cornwall | 2 |
16 |
46.4 |
||
| Dorset | 34 |
9 |
|||
| Grand Bend | 36 |
18 |
5.1 |
||
| Guelph | 32 |
15 |
8.6 |
||
| Hamilton Downtown | 23 |
14 |
15 |
0.1 |
0.21 |
| Hamilton Mountain | 30 |
13 |
9.4 |
0 |
|
| Hamilton West | 29 |
13 |
10.7 |
||
| Kingston | 30 |
4 |
9 |
||
| Kitchener | 34 |
13 |
7 |
||
| London | 36 |
17 |
6.1 |
||
| Milton | 32 |
15 |
9.2 |
0.2 |
|
| Mississauga | 33 |
13 |
8.9 |
||
| Newmarket | 29 |
16 |
13.9 |
||
| North Bay | 34 |
8 |
5 |
||
| Oakville | 31 |
13 |
12.6 |
||
| Oshawa | 29 |
11 |
12.3 |
||
| Ottawa Downtown | 9 |
9 |
29.4 |
||
| Parry Sound | 40 |
11 |
4.2 |
||
| Peterborough | 36 |
6 |
5.4 |
||
| Port Stanley | 38 |
16 |
4.1 |
||
| Sarnia | 20 |
21 |
20.9 |
30.6 |
|
| Sault Ste. Marie | 23 |
13 |
8 |
0.1 |
|
| St. Catharines | 30 |
10 |
7.1 |
||
| Sudbury | 38 |
11 |
2.9 |
0.2 |
|
| Thunder Bay | 23 |
7 |
4.7 |
||
| Tiverton | 35 |
16 |
|||
| Toronto Downtown | 26 |
13 |
16.4 |
||
| Toronto East | 29 |
11 |
13.2 |
||
| Toronto North | 25 |
17 |
15.6 |
0.6 |
|
| Toronto West | 24 |
13 |
10.2 |
0.1 |
0.96 |
| Windsor Downtown | 28 |
30 |
10.4 |
0.1 |
0.21 |
| Windsor West | 27 |
19 |
11.4 |
0 |
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.
