Pollutant Concentrations for February 22, 2025, 12:00 am EST
Choose Date Options:
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
14  |
5 |
27.9 |
|||
39 |
3 |
4.7 |
|||
28 |
3 |
13.7 |
|||
34 |
5 |
4 |
|||
30 |
4 |
13.5 |
|||
36 |
16 |
8 |
|||
39 |
2 |
2.8 |
|||
29 |
6 |
||||
44 |
5 |
2.4 |
|||
33 |
3 |
8.1 |
|||
34 |
4 |
10.8 |
0.3 |
0.19 |
|
33 |
4 |
3 |
0 |
||
33 |
4 |
7.4 |
|||
34 |
4 |
6.9 |
|||
34 |
4 |
8.2 |
|||
36 |
7 |
10.2 |
|||
36 |
3 |
6.8 |
0.2 |
||
7 |
6 |
29.3 |
|||
22 |
4 |
19.6 |
|||
12 |
4 |
32.5 |
|||
26 |
4 |
15.8 |
|||
28 |
6 |
9.4 |
|||
28 |
4 |
14.6 |
|||
30 |
4 |
9.4 |
|||
24 |
5 |
19.3 |
|||
44 |
8 |
2.5 |
|||
25 |
8 |
20.1 |
3.8 |
||
36 |
3 |
11 |
0.2 |
||
37 |
4 |
5.8 |
|||
34 |
13 |
11.5 |
0.2 |
||
40 |
6 |
3.8 |
|||
45 |
3 |
||||
25 |
3 |
19.5 |
|||
5 |
5 |
39.9 |
|||
3 |
6 |
39.1 |
0.4 |
||
3 |
7 |
41.1 |
0.1 |
0.37 |
|
27 |
18 |
15.9 |
0.5 |
0.25 |
|
33 |
18 |
11.4 |
0.1 |
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.
