Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 13 |
7 |
3.1 |
||
| Belleville | 10 |
7 |
13 |
||
| Brampton | 4 |
8 |
15.1 |
||
| Brantford | 16 |
8 |
6 |
||
| Burlington | 29 |
6 |
4.8 |
||
| Chatham | 32 |
7 |
3.8 |
||
| Cornwall | 12 |
4 |
0.5 |
||
| Dorset | 3 |
4 |
|||
| Grand Bend | 27 |
7 |
4.3 |
||
| Guelph | 26 |
7 |
6.8 |
||
| Hamilton Downtown | 27 |
6 |
8.9 |
20.1 |
0.17 |
| Hamilton Mountain | 25 |
6 |
12.3 |
26.8 |
|
| Hamilton West | 1 |
8 |
16.5 |
||
| Kingston | 20 |
5 |
2.5 |
||
| Kitchener | 16 |
7 |
9.3 |
||
| London | 21 |
8 |
6.7 |
||
| Milton | 1 |
20 |
22.1 |
0.3 |
|
| Mississauga | 2 |
7 |
9.6 |
||
| Newmarket | 32 |
8 |
6.7 |
||
| North Bay | 8 |
8 |
2.1 |
||
| Oakville | 37 |
6 |
4.4 |
||
| Oshawa | 6 |
6 |
3 |
||
| Ottawa Downtown | 9 |
4 |
2.3 |
||
| Parry Sound | 27 |
5 |
1.9 |
||
| Peterborough | 11 |
5 |
3.5 |
||
| Port Stanley | 35 |
8 |
2.8 |
||
| Sarnia | 32 |
6 |
7.1 |
0.2 |
|
| Sault Ste. Marie | N/A |
N/A |
N/A |
N/A |
|
| St. Catharines | 17 |
6 |
4.3 |
||
| Sudbury | N/A |
N/A |
N/A |
N/A |
|
| Thunder Bay | 26 |
19 |
2.5 |
||
| Tiverton | 29 |
6 |
|||
| Toronto Downtown | 28 |
7 |
9.3 |
||
| Toronto East | 10 |
8 |
19.6 |
||
| Toronto North | 6 |
7 |
15.4 |
0 |
|
| Toronto West | 1 |
9 |
27.5 |
0 |
0.29 |
| Windsor Downtown | 24 |
9 |
6.9 |
0 |
0.17 |
| Windsor West | 23 |
9 |
6.4 |
0.1 |
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.
