Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 28 |
3 |
2.6 |
||
| Sault Ste. Marie | 26 |
3 |
1 |
0 |
|
| Windsor West | 45 |
14 |
3.1 |
0.2 |
|
| Windsor Downtown | 47 |
14 |
3.9 |
0.1 |
N/A |
| Sarnia | 39 |
16 |
9.2 |
0.5 |
|
| Chatham | 44 |
14 |
4.3 |
||
| Grand Bend | 46 |
14 |
3.8 |
||
| Tiverton | 33 |
10 |
|||
| London | 49 |
13 |
2.7 |
||
| Port Stanley | 50 |
16 |
3.7 |
||
| Sudbury | 24 |
2 |
1.2 |
0.1 |
|
| Kitchener | 38 |
14 |
5.2 |
||
| Brantford | 37 |
18 |
2.7 |
||
| Guelph | 44 |
13 |
4 |
||
| Parry Sound | 26 |
5 |
1.5 |
||
| Hamilton West | 24 |
24 |
21.2 |
||
| Hamilton Mountain | 50 |
13 |
2 |
0.3 |
|
| Milton | 33 |
25 |
8.7 |
0.2 |
|
| Hamilton Downtown | 27 |
41 |
19.2 |
7.7 |
0.61 |
| Burlington | 60 |
26 |
5.6 |
||
| Brampton | 34 |
23 |
14.7 |
||
| Barrie | 29 |
9 |
1.7 |
||
| Oakville | 41 |
25 |
9.2 |
||
| Mississauga | 45 |
24 |
4.2 |
||
| Toronto West | 42 |
18 |
9.7 |
N/A |
0.31 |
| Newmarket | 25 |
11 |
5.3 |
||
| Toronto North | N/A |
N/A |
N/A |
N/A |
|
| North Bay | 24 |
1 |
0 |
||
| Toronto Downtown | N/A |
23 |
N/A |
||
| Toronto East | 55 |
19 |
2.6 |
||
| St. Catharines | 46 |
12 |
3.5 |
||
| Dorset | 24 |
4 |
|||
| Oshawa | 54 |
19 |
2.5 |
||
| Peterborough | 41 |
11 |
1.5 |
||
| Belleville | 38 |
16 |
2.2 |
||
| Kingston | 28 |
10 |
5.2 |
||
| Ottawa Downtown | 23 |
2 |
2.1 |
||
| Cornwall | 26 |
3 |
1.4 |
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.
