Pollutant Concentrations for June 25, 2025, 4:00 am EDT
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| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
28  |
6 |
0.8 |
|||
28 |
6 |
1.7 |
|||
32 |
7 |
1.9 |
|||
14 |
7 |
5 |
|||
18 |
6 |
12.1 |
|||
32 |
6 |
3.6 |
|||
15 |
7 |
4.1 |
|||
19 |
6 |
||||
22 |
5 |
0.9 |
|||
23 |
7 |
2.3 |
|||
24 |
9 |
7.5 |
0.3 |
0.16 |
|
26 |
8 |
3.4 |
0.3 |
||
12 |
7 |
14.5 |
|||
28 |
7 |
1.6 |
|||
20 |
9 |
5.4 |
|||
7 |
6 |
5.4 |
|||
25 |
8 |
6 |
0.2 |
||
28 |
6 |
4 |
|||
20 |
8 |
3.8 |
|||
20 |
9 |
1.5 |
|||
27 |
6 |
4 |
|||
28 |
6 |
1.2 |
|||
24 |
8 |
2.9 |
|||
30 |
6 |
0.7 |
|||
25 |
5 |
0.5 |
|||
42 |
7 |
3.2 |
|||
31 |
6 |
1.1 |
0 |
||
14 |
6 |
1.4 |
|
||
26 |
8 |
3.2 |
|||
22 |
9 |
1.1 |
0.1 |
||
7 |
12 |
2.9 |
|||
28 |
6 |
||||
27 |
1 |
7.9 |
|||
28 |
7 |
2.9 |
|||
24 |
8 |
6.5 |
0.3 |
||
22 |
9 |
11.9 |
0.1 |
0.18 |
|
13 |
11 |
16.2 |
0 |
0.26 |
|
10 |
13 |
16.7 |
0 |
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.
