Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 33 |
20 |
1 |
||
| Belleville | 37 |
17 |
2.1 |
||
| Brampton | 33 |
17 |
7.3 |
||
| Brantford | 44 |
26 |
2.8 |
||
| Burlington | 34 |
10 |
3 |
||
| Chatham | 55 |
22 |
3.5 |
||
| Cornwall | 28 |
5 |
2.8 |
||
| Dorset | 34 |
17 |
|||
| Grand Bend | 54 |
34 |
1.9 |
||
| Guelph | 40 |
16 |
2.9 |
||
| Hamilton Downtown | 27 |
7 |
7 |
13.3 |
0.26 |
| Hamilton Mountain | 29 |
20 |
6 |
15.4 |
|
| Hamilton West | 33 |
14 |
3.2 |
||
| Kingston | 32 |
12 |
3.1 |
||
| Kitchener | 41 |
18 |
4.3 |
||
| London | 42 |
34 |
3.2 |
||
| Milton | 35 |
16 |
2.4 |
0.2 |
|
| Mississauga | 31 |
12 |
2.2 |
||
| Newmarket | 35 |
30 |
2.9 |
||
| North Bay | 22 |
6 |
1.3 |
||
| Oakville | 33 |
12 |
2.5 |
||
| Oshawa | 33 |
21 |
2.7 |
||
| Ottawa Downtown | 25 |
4 |
1.5 |
||
| Parry Sound | 31 |
23 |
1.6 |
||
| Peterborough | 34 |
14 |
2.2 |
||
| Port Stanley | 47 |
34 |
2.4 |
||
| Sarnia | 46 |
30 |
4.4 |
0.5 |
|
| Sault Ste. Marie | 24 |
24 |
1 |
0.2 |
|
| St. Catharines | 51 |
33 |
4.9 |
||
| Sudbury | 29 |
13 |
1.6 |
0.1 |
|
| Thunder Bay | 28 |
37 |
3.7 |
||
| Tiverton | 28 |
28 |
|||
| Toronto Downtown | 26 |
20 |
13 |
||
| Toronto East | 29 |
16 |
1.7 |
||
| Toronto North | 33 |
23 |
4.1 |
0.3 |
|
| Toronto West | 29 |
21 |
2.7 |
0.1 |
0.26 |
| Windsor Downtown | 50 |
18 |
7.9 |
0 |
0.3 |
| Windsor West | 53 |
19 |
3.4 |
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.
