Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 41 |
9 |
1.2 |
||
| Belleville | 63 |
13 |
2.6 |
||
| Brampton | 52 |
10 |
1.6 |
||
| Brantford | 49 |
9 |
1.1 |
||
| Burlington | 50 |
9 |
5.6 |
||
| Chatham | 53 |
6 |
1.3 |
||
| Cornwall | 34 |
12 |
2.1 |
||
| Dorset | 46 |
9 |
|||
| Grand Bend | 57 |
9 |
0.9 |
||
| Guelph | 52 |
10 |
1.3 |
||
| Hamilton Downtown | 49 |
9 |
1.8 |
0.1 |
0.19 |
| Hamilton Mountain | 55 |
9 |
1.8 |
0 |
|
| Hamilton West | 52 |
9 |
2.1 |
||
| Kingston | 53 |
11 |
1.2 |
||
| Kitchener | 52 |
9 |
1.7 |
||
| London | 49 |
10 |
1.1 |
||
| Milton | 55 |
11 |
1.7 |
0.2 |
|
| Mississauga | 51 |
10 |
2.4 |
||
| Newmarket | 43 |
12 |
1.5 |
||
| North Bay | 35 |
6 |
0 |
||
| Oakville | 50 |
10 |
1.8 |
||
| Oshawa | 43 |
9 |
3.3 |
||
| Ottawa Downtown | 37 |
11 |
4.2 |
||
| Parry Sound | 48 |
8 |
1 |
||
| Peterborough | 50 |
11 |
2.1 |
||
| Port Stanley | 60 |
10 |
1 |
||
| Sarnia | 65 |
11 |
4.3 |
1.1 |
|
| Sault Ste. Marie | 24 |
4 |
1 |
0 |
|
| St. Catharines | 49 |
9 |
1.6 |
||
| Sudbury | N/A |
4 |
N/A |
N/A |
|
| Thunder Bay | 20 |
5 |
2.5 |
||
| Tiverton | 47 |
8 |
|||
| Toronto Downtown | 41 |
15 |
13.5 |
||
| Toronto East | 42 |
12 |
6.8 |
||
| Toronto North | 41 |
13 |
6.1 |
0 |
|
| Toronto West | 34 |
11 |
14 |
0 |
0.25 |
| Windsor Downtown | 48 |
9 |
5.1 |
0.1 |
0.26 |
| Windsor West | 43 |
9 |
5.6 |
0.3 |
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.
