Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 30 |
19 |
5.2 |
||
| Belleville | 38 |
19 |
2.1 |
||
| Brampton | 39 |
26 |
4.4 |
||
| Brantford | 33 |
8 |
3.1 |
||
| Burlington | 34 |
13 |
5.3 |
||
| Chatham | 31 |
17 |
4.3 |
||
| Cornwall | 31 |
14 |
2.6 |
||
| Dorset | 37 |
20 |
|||
| Grand Bend | 36 |
16 |
0.9 |
||
| Guelph | 32 |
19 |
2 |
||
| Hamilton Downtown | 31 |
13 |
3.6 |
0.5 |
0.2 |
| Hamilton Mountain | 30 |
12 |
3.6 |
0.9 |
|
| Hamilton West | 28 |
11 |
6.6 |
||
| Kingston | 32 |
25 |
2.2 |
||
| Kitchener | 33 |
19 |
2.9 |
||
| London | 30 |
12 |
3.7 |
||
| Milton | 33 |
18 |
3.8 |
0.2 |
|
| Mississauga | 33 |
25 |
9.7 |
||
| Newmarket | 34 |
26 |
4.9 |
||
| North Bay | 26 |
4 |
1.8 |
||
| Oakville | 35 |
24 |
6.7 |
||
| Oshawa | 36 |
27 |
2.2 |
||
| Ottawa Downtown | 23 |
29 |
4.7 |
||
| Parry Sound | 26 |
25 |
1.4 |
||
| Peterborough | 41 |
16 |
3 |
||
| Port Stanley | 30 |
15 |
3.3 |
||
| Sarnia | 44 |
31 |
2.8 |
0.2 |
|
| Sault Ste. Marie | 24 |
12 |
1.9 |
N/A |
|
| St. Catharines | 31 |
10 |
4.9 |
||
| Sudbury | 26 |
3 |
2 |
0 |
|
| Thunder Bay | 7 |
12 |
4.3 |
||
| Tiverton | 38 |
26 |
|||
| Toronto Downtown | 35 |
26 |
7.4 |
||
| Toronto East | 29 |
30 |
8.5 |
||
| Toronto North | 35 |
33 |
6.1 |
0.6 |
|
| Toronto West | 28 |
32 |
14.6 |
0.1 |
0.28 |
| Windsor Downtown | 37 |
9 |
16.5 |
0 |
0.21 |
| Windsor West | 45 |
12 |
6.5 |
0.3 |
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.
