Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 13 |
8 |
6.1 |
||
| Belleville | 30 |
11 |
0.9 |
||
| Brampton | 27 |
12 |
6.5 |
||
| Brantford | 27 |
6 |
3.8 |
||
| Burlington | 33 |
7 |
3 |
||
| Chatham | 38 |
3 |
0.4 |
||
| Cornwall | 27 |
18 |
2.6 |
||
| Dorset | 12 |
9 |
|||
| Grand Bend | 29 |
5 |
0.7 |
||
| Guelph | 35 |
11 |
2.1 |
||
| Hamilton Downtown | 20 |
9 |
11.5 |
20.2 |
0.27 |
| Hamilton Mountain | 24 |
10 |
11.5 |
22.7 |
|
| Hamilton West | 27 |
9 |
7.6 |
||
| Kingston | 26 |
14 |
1.8 |
||
| Kitchener | 34 |
7 |
2.9 |
||
| London | 35 |
4 |
3.4 |
||
| Milton | 35 |
10 |
0.6 |
0.2 |
|
| Mississauga | 30 |
7 |
2.5 |
||
| Newmarket | 27 |
11 |
1.4 |
||
| North Bay | 37 |
31 |
0.7 |
||
| Oakville | 33 |
8 |
2.6 |
||
| Oshawa | 26 |
14 |
2 |
||
| Ottawa Downtown | 28 |
16 |
2.8 |
||
| Parry Sound | 23 |
9 |
0.7 |
||
| Peterborough | 26 |
8 |
2.3 |
||
| Port Stanley | 38 |
4 |
1 |
||
| Sarnia | 31 |
5 |
1.2 |
0 |
|
| Sault Ste. Marie | 27 |
11 |
1.3 |
0 |
|
| St. Catharines | 32 |
6 |
2.8 |
||
| Sudbury | 34 |
10 |
1.2 |
0 |
|
| Thunder Bay | 21 |
13 |
5 |
||
| Tiverton | 25 |
8 |
|||
| Toronto Downtown | 18 |
13 |
19.5 |
||
| Toronto East | 25 |
12 |
4.1 |
||
| Toronto North | 25 |
16 |
4.7 |
0 |
|
| Toronto West | 26 |
11 |
5.1 |
0 |
0.19 |
| Windsor Downtown | 40 |
3 |
3.8 |
0 |
0.17 |
| Windsor West | 36 |
4 |
4.3 |
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.
