Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 32 |
13 |
1.4 |
||
| Belleville | 37 |
5 |
1.1 |
||
| Brampton | 40 |
12 |
3 |
||
| Brantford | 27 |
8 |
3.1 |
||
| Burlington | 33 |
9 |
15.9 |
||
| Chatham | 46 |
16 |
2.4 |
||
| Cornwall | 19 |
9 |
3.5 |
||
| Dorset | 21 |
14 |
|||
| Grand Bend | 35 |
10 |
2.6 |
||
| Guelph | 38 |
14 |
2.4 |
||
| Hamilton Downtown | 36 |
8 |
5.6 |
4.7 |
0.33 |
| Hamilton Mountain | 40 |
9 |
5.4 |
4.8 |
|
| Hamilton West | 34 |
10 |
9.2 |
||
| Kingston | 34 |
4 |
1 |
||
| Kitchener | 37 |
14 |
3.4 |
||
| London | 28 |
13 |
3.6 |
||
| Milton | 40 |
12 |
3.7 |
0.5 |
|
| Mississauga | 38 |
9 |
7.4 |
||
| Newmarket | 39 |
15 |
2.3 |
||
| North Bay | 46 |
11 |
0.4 |
||
| Oakville | 41 |
9 |
6.5 |
||
| Oshawa | 31 |
5 |
5.8 |
||
| Ottawa Downtown | 23 |
7 |
5.5 |
||
| Parry Sound | 42 |
13 |
2.6 |
||
| Peterborough | 23 |
5 |
4.4 |
||
| Port Stanley | 33 |
17 |
6.8 |
||
| Sarnia | 46 |
18 |
5 |
0.2 |
|
| Sault Ste. Marie | 42 |
8 |
1.7 |
0 |
|
| St. Catharines | 35 |
7 |
3.7 |
||
| Sudbury | 29 |
8 |
4.1 |
0.2 |
|
| Thunder Bay | 23 |
23 |
7 |
||
| Tiverton | 44 |
15 |
|||
| Toronto Downtown | 28 |
10 |
19 |
||
| Toronto East | 31 |
11 |
10.3 |
||
| Toronto North | 35 |
8 |
10 |
0.2 |
|
| Toronto West | 26 |
7 |
16.3 |
1.2 |
0.25 |
| Windsor Downtown | 51 |
17 |
5.3 |
0.2 |
0.27 |
| Windsor West | 56 |
20 |
4.3 |
0.2 |
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.
