Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 27 |
7 |
8.1 |
||
| Belleville | 31 |
6 |
4.6 |
||
| Brampton | 25 |
6 |
13.4 |
||
| Brantford | 16 |
19 |
11.9 |
||
| Burlington | 31 |
10 |
3.8 |
||
| Chatham | 31 |
15 |
7 |
||
| Cornwall | 32 |
3 |
3.6 |
||
| Dorset | 34 |
3 |
|||
| Grand Bend | 25 |
16 |
4.7 |
||
| Guelph | 23 |
7 |
10 |
||
| Hamilton Downtown | 16 |
20 |
16.3 |
0.4 |
0.28 |
| Hamilton Mountain | 13 |
20 |
15.1 |
0.3 |
|
| Hamilton West | 12 |
17 |
24.2 |
||
| Kingston | 24 |
8 |
8.4 |
||
| Kitchener | 20 |
12 |
11 |
||
| London | 15 |
17 |
15.1 |
||
| Milton | 28 |
6 |
7.5 |
0.2 |
|
| Mississauga | 30 |
7 |
4.7 |
||
| Newmarket | 31 |
6 |
6.7 |
||
| North Bay | 31 |
3 |
1.6 |
||
| Oakville | 27 |
8 |
7.9 |
||
| Oshawa | 35 |
6 |
3.6 |
||
| Ottawa Downtown | 32 |
4 |
4.6 |
||
| Parry Sound | 36 |
4 |
2.6 |
||
| Peterborough | 33 |
6 |
4.3 |
||
| Port Stanley | 21 |
13 |
4.7 |
||
| Sarnia | 10 |
28 |
21.4 |
1.3 |
|
| Sault Ste. Marie | 34 |
2 |
2.7 |
0 |
|
| St. Catharines | 15 |
15 |
13.8 |
||
| Sudbury | 32 |
3 |
6.2 |
0.4 |
|
| Thunder Bay | 29 |
3 |
3.4 |
||
| Tiverton | 30 |
13 |
|||
| Toronto Downtown | 10 |
11 |
54.5 |
||
| Toronto East | 32 |
6 |
4.9 |
||
| Toronto North | 28 |
8 |
7.7 |
0 |
|
| Toronto West | 23 |
8 |
14.3 |
0 |
0.21 |
| Windsor Downtown | 23 |
27 |
19.5 |
1.1 |
0.28 |
| Windsor West | 25 |
23 |
15.6 |
0.4 |
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.
