Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 27 |
10 |
3.9 |
||
| Belleville | 45 |
19 |
3.3 |
||
| Brampton | 43 |
14 |
10.4 |
||
| Brantford | 42 |
19 |
3 |
||
| Burlington | 56 |
17 |
8.2 |
||
| Chatham | 50 |
12 |
3.1 |
||
| Cornwall | 19 |
6 |
8.8 |
||
| Dorset | 29 |
5 |
|||
| Grand Bend | 49 |
12 |
5.3 |
||
| Guelph | 49 |
13 |
4.2 |
||
| Hamilton Downtown | 41 |
19 |
8.7 |
1.8 |
0.36 |
| Hamilton Mountain | 51 |
15 |
4 |
2.8 |
|
| Hamilton West | 43 |
12 |
9.2 |
||
| Kingston | 29 |
12 |
7.3 |
||
| Kitchener | 39 |
19 |
7.5 |
||
| London | 55 |
12 |
2.8 |
||
| Milton | 48 |
17 |
5 |
0.2 |
|
| Mississauga | 49 |
20 |
6.1 |
||
| Newmarket | 57 |
16 |
4.6 |
||
| North Bay | 26 |
1 |
0.2 |
||
| Oakville | 45 |
20 |
10.6 |
||
| Oshawa | 53 |
25 |
4.1 |
||
| Ottawa Downtown | 23 |
3 |
2.1 |
||
| Parry Sound | 28 |
5 |
1.5 |
||
| Peterborough | 39 |
16 |
6.4 |
||
| Port Stanley | 59 |
16 |
3.5 |
||
| Sarnia | 50 |
14 |
5.9 |
0.4 |
|
| Sault Ste. Marie | 19 |
3 |
1.4 |
0 |
|
| St. Catharines | 44 |
15 |
4.7 |
||
| Sudbury | 26 |
1 |
2.4 |
0.3 |
|
| Thunder Bay | 25 |
7 |
5.9 |
||
| Tiverton | 32 |
5 |
|||
| Toronto Downtown | 44 |
22 |
23.1 |
||
| Toronto East | 59 |
22 |
6.2 |
||
| Toronto North | N/A |
N/A |
N/A |
N/A |
|
| Toronto West | 42 |
22 |
10 |
0.1 |
0.31 |
| Windsor Downtown | 55 |
13 |
4.8 |
0.1 |
0.2 |
| Windsor West | 57 |
12 |
3.2 |
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.
