Pollutant Concentrations for April 30, 2025, 7:00 pm EDT
Choose Date Options:
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
31  |
3 |
2.2 |
|||
36 |
3 |
0.9 |
|||
31 |
8 |
7.9 |
|||
34 |
8 |
2.8 |
|||
32 |
8 |
6.9 |
|||
31 |
4 |
3 |
|||
39 |
3 |
1.4 |
|||
44 |
2 |
||||
33 |
1 |
0.4 |
|||
46 |
6 |
2.8 |
|||
18 |
12 |
18.9 |
19 |
0.24 |
|
16 |
12 |
13.5 |
18 |
||
22 |
9 |
13.5 |
|||
28 |
1 |
1.3 |
|||
46 |
7 |
2.2 |
|||
37 |
5 |
2.5 |
|||
35 |
9 |
4.1 |
0.4 |
||
32 |
8 |
4.7 |
|||
41 |
4 |
2.7 |
|||
34 |
2 |
1.7 |
|||
31 |
10 |
4.9 |
|||
36 |
7 |
6.2 |
|||
33 |
3 |
1.3 |
|||
33 |
3 |
0.4 |
|||
47 |
3 |
1.2 |
|||
35 |
6 |
1.9 |
|||
36 |
3 |
1.5 |
0.1 |
||
40 |
3 |
1.6 |
|
||
30 |
7 |
5 |
|||
40 |
3 |
1.3 |
3 |
||
38 |
3 |
3.1 |
|||
33 |
2 |
||||
9 |
5 |
39.1 |
|||
28 |
9 |
10.6 |
|||
31 |
9 |
9.3 |
0.5 |
||
35 |
9 |
6.4 |
0.8 |
0.18 |
|
45 |
5 |
4 |
0.5 |
0.16 |
|
45 |
6 |
3.7 |
0.4 |
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.
