Pollutant Concentrations for June 25, 2025, 9:00 am EDT
Choose Date Options:
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
8  |
12 |
4.8 |
|||
10 |
8 |
5.9 |
|
||
23 |
11 |
6.6 |
0.3 |
||
20 |
7 |
10.6 |
0 |
0.21 |
|
30 |
6 |
2.3 |
0.1 |
||
23 |
5 |
2.4 |
|||
28 |
6 |
1.2 |
|||
23 |
6 |
||||
11 |
8 |
5 |
|||
13 |
8 |
4.1 |
|||
17 |
5 |
1.2 |
0.2 |
||
20 |
8 |
4.3 |
|||
16 |
8 |
7.9 |
|||
24 |
6 |
2.3 |
|||
18 |
9 |
1.6 |
|||
15 |
10 |
11.1 |
|||
16 |
8 |
10 |
0.1 |
||
24 |
8 |
5.5 |
0.2 |
||
14 |
9 |
13.9 |
0.3 |
0.26 |
|
23 |
8 |
10.1 |
|||
27 |
7 |
4.9 |
|||
30 |
7 |
1.9 |
|||
18 |
10 |
13.8 |
|||
15 |
8 |
14.4 |
|||
14 |
8 |
13.9 |
0.1 |
0.22 |
|
26 |
8 |
3.4 |
|||
20 |
8 |
11.6 |
0.5 |
||
15 |
5 |
1.9 |
|||
22 |
7 |
14.5 |
|||
24 |
8 |
8.6 |
|||
18 |
8 |
8.4 |
|||
20 |
7 |
||||
36 |
7 |
1.9 |
|||
29 |
6 |
1.3 |
|||
24 |
7 |
2.3 |
|||
21 |
7 |
2.6 |
|||
24 |
10 |
2.2 |
|||
17 |
9 |
5 |
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.
