Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 53 |
7 |
2.9 |
||
| Belleville | 61 |
6 |
1.7 |
||
| Brampton | 57 |
7 |
4.7 |
||
| Brantford | 51 |
8 |
0.8 |
||
| Burlington | 63 |
6 |
3.7 |
||
| Chatham | 71 |
8 |
1.1 |
||
| Cornwall | 58 |
8 |
0.6 |
||
| Dorset | 38 |
5 |
|||
| Grand Bend | 57 |
53 |
2.8 |
||
| Guelph | 49 |
9 |
2.9 |
||
| Hamilton Downtown | 38 |
10 |
16.2 |
22.5 |
0.42 |
| Hamilton Mountain | 52 |
9 |
11.1 |
6.6 |
|
| Hamilton West | 44 |
12 |
19.5 |
||
| Kingston | 73 |
6 |
1.4 |
||
| Kitchener | 52 |
9 |
2.4 |
||
| London | 56 |
8 |
0.8 |
||
| Milton | 62 |
8 |
0.4 |
0.3 |
|
| Mississauga | 54 |
7 |
2.5 |
||
| Newmarket | 62 |
10 |
3.3 |
||
| North Bay | 45 |
7 |
1.3 |
||
| Oakville | 60 |
7 |
2.8 |
||
| Oshawa | 60 |
8 |
3.5 |
||
| Ottawa Downtown | 62 |
7 |
2.1 |
||
| Parry Sound | 53 |
6 |
2.2 |
||
| Peterborough | 59 |
5 |
1 |
||
| Port Stanley | 63 |
7 |
1.7 |
||
| Sarnia | 57 |
8 |
2.4 |
0 |
|
| Sault Ste. Marie | 44 |
7 |
2.2 |
0.1 |
|
| St. Catharines | 53 |
6 |
2.6 |
||
| Sudbury | 48 |
6 |
1.5 |
0 |
|
| Thunder Bay | 27 |
12 |
1.8 |
||
| Tiverton | 57 |
6 |
|||
| Toronto Downtown | 48 |
11 |
22.9 |
||
| Toronto East | 61 |
7 |
3.3 |
||
| Toronto North | 53 |
12 |
4.9 |
0 |
|
| Toronto West | 52 |
7 |
1.9 |
0.1 |
0.19 |
| Windsor Downtown | 65 |
8 |
2.5 |
0.3 |
0.19 |
| Windsor West | 63 |
8 |
2.9 |
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.
