Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Thunder Bay | 17 |
12 |
22.4 |
||
| Sault Ste. Marie | 35 |
5 |
4.8 |
0.1 |
|
| Windsor West | 9 |
29 |
34.1 |
0.1 |
|
| Windsor Downtown | 15 |
46 |
27.9 |
0.1 |
0.45 |
| Sarnia | 28 |
19 |
9.2 |
0 |
|
| Chatham | 35 |
25 |
13.8 |
||
| Grand Bend | 36 |
25 |
5.2 |
||
| Tiverton | 32 |
8 |
|||
| London | 25 |
45 |
17.5 |
||
| Port Stanley | 40 |
37 |
5.4 |
||
| Sudbury | 31 |
3 |
4.4 |
2.2 |
|
| Kitchener | 33 |
15 |
9.7 |
||
| Brantford | 24 |
25 |
8.4 |
||
| Guelph | 25 |
14 |
14.9 |
||
| Parry Sound | 33 |
8 |
1.7 |
||
| Hamilton West | 1 |
18 |
41.5 |
||
| Hamilton Mountain | 8 |
21 |
26.1 |
0.2 |
|
| Milton | 6 |
16 |
39.3 |
0.2 |
|
| Hamilton Downtown | 12 |
21 |
27.2 |
0.3 |
0.37 |
| Burlington | 13 |
20 |
31.4 |
||
| Brampton | 10 |
12 |
31.9 |
||
| Barrie | 31 |
7 |
7.6 |
||
| Oakville | 13 |
15 |
38.5 |
||
| Mississauga | 5 |
19 |
29.9 |
||
| Toronto West | 12 |
20 |
29.6 |
0 |
0.37 |
| Newmarket | 29 |
11 |
11 |
||
| Toronto North | 23 |
15 |
14.6 |
0.8 |
|
| North Bay | 31 |
4 |
3.7 |
||
| Toronto Downtown | 11 |
19 |
35.7 |
||
| Toronto East | 19 |
22 |
20.7 |
||
| St. Catharines | 16 |
27 |
30.2 |
||
| Dorset | 36 |
2 |
|||
| Oshawa | 37 |
7 |
4.7 |
||
| Peterborough | 35 |
5 |
2.5 |
||
| Belleville | 36 |
7 |
3.8 |
||
| Kingston | 36 |
9 |
4 |
||
| Ottawa Downtown | 28 |
7 |
13.8 |
||
| Cornwall | 38 |
10 |
2.4 |
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.
