Choose date options.
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
| Barrie | 61 |
13 |
3.5 |
||
| Belleville | 79 |
11 |
2.2 |
||
| Brampton | 67 |
13 |
2.4 |
||
| Brantford | 67 |
16 |
1.4 |
||
| Burlington | 64 |
14 |
6.7 |
||
| Chatham | 62 |
10 |
1.8 |
||
| Cornwall | 64 |
9 |
2.9 |
||
| Dorset | 69 |
10 |
|||
| Grand Bend | 58 |
13 |
2.1 |
||
| Guelph | 69 |
14 |
2.6 |
||
| Hamilton Downtown | 62 |
12 |
3.3 |
0.1 |
0.2 |
| Hamilton Mountain | 68 |
13 |
2.1 |
0.1 |
|
| Hamilton West | 65 |
14 |
3.3 |
||
| Kingston | 75 |
10 |
2 |
||
| Kitchener | 67 |
14 |
3.2 |
||
| London | 67 |
13 |
1 |
||
| Milton | 66 |
16 |
2.8 |
0.4 |
|
| Mississauga | 69 |
13 |
2.6 |
||
| Newmarket | 69 |
14 |
2.8 |
||
| North Bay | 65 |
12 |
0.3 |
||
| Oakville | 67 |
14 |
2.5 |
||
| Oshawa | 69 |
13 |
2.4 |
||
| Ottawa Downtown | 68 |
8 |
2.9 |
||
| Parry Sound | 71 |
20 |
3.6 |
||
| Peterborough | 74 |
11 |
3.5 |
||
| Port Stanley | 78 |
14 |
3.5 |
||
| Sarnia | 48 |
13 |
4 |
0.7 |
|
| Sault Ste. Marie | 53 |
10 |
3.6 |
0.1 |
|
| St. Catharines | 68 |
12 |
1.9 |
||
| Sudbury | 60 |
11 |
2.8 |
0.6 |
|
| Thunder Bay | 42 |
6 |
4.2 |
||
| Tiverton | 70 |
13 |
|||
| Toronto Downtown | 56 |
22 |
15.1 |
||
| Toronto East | 60 |
14 |
6.5 |
||
| Toronto North | 68 |
15 |
4.1 |
0.2 |
|
| Toronto West | 68 |
15 |
5 |
0.2 |
0.18 |
| Windsor Downtown | 55 |
14 |
7 |
1.9 |
0.21 |
| Windsor West | 50 |
15 |
11.2 |
4.8 |
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.
