Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 37 |
15 |
6.1 |
||
| Belleville | 49 |
14 |
1.9 |
||
| Brampton | 41 |
10 |
7.1 |
||
| Brantford | 33 |
7 |
1.1 |
||
| Burlington | 51 |
9 |
6.8 |
||
| Chatham | 53 |
11 |
1.3 |
||
| Cornwall | 34 |
11 |
2.4 |
||
| Dorset | 14 |
9 |
|||
| Grand Bend | 34 |
9 |
2.8 |
||
| Guelph | 30 |
8 |
5.9 |
||
| Hamilton Downtown | 34 |
11 |
8.9 |
1.1 |
0.3 |
| Hamilton Mountain | 35 |
9 |
5.9 |
0.7 |
|
| Hamilton West | 25 |
12 |
15.4 |
||
| Kingston | 47 |
10 |
1.1 |
||
| Kitchener | 26 |
8 |
3.5 |
||
| London | 44 |
6 |
1.8 |
||
| Milton | 42 |
12 |
4.2 |
0.2 |
|
| Mississauga | 30 |
10 |
7.1 |
||
| Newmarket | 41 |
13 |
6.9 |
||
| North Bay | 38 |
13 |
1.3 |
||
| Oakville | 41 |
11 |
7.5 |
||
| Oshawa | 42 |
11 |
4.2 |
||
| Ottawa Downtown | 38 |
10 |
3.4 |
||
| Parry Sound | 39 |
10 |
2.1 |
||
| Peterborough | 42 |
8 |
4.1 |
||
| Port Stanley | 49 |
6 |
0.5 |
||
| Sarnia | 53 |
14 |
4.2 |
0.3 |
|
| Sault Ste. Marie | 47 |
11 |
2.1 |
0 |
|
| St. Catharines | 32 |
8 |
3.3 |
||
| Sudbury | N/A |
N/A |
N/A |
N/A |
|
| Thunder Bay | 19 |
3 |
1.1 |
||
| Tiverton | 37 |
10 |
|||
| Toronto Downtown | 45 |
13 |
19.8 |
||
| Toronto East | 42 |
10 |
6.6 |
||
| Toronto North | 41 |
10 |
4.9 |
0 |
|
| Toronto West | 36 |
10 |
5.9 |
0 |
0.26 |
| Windsor Downtown | 52 |
10 |
2.7 |
0.1 |
0.18 |
| Windsor West | 49 |
12 |
1.9 |
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.
