Pollutant Concentrations for June 23, 2025, 12:00 am EDT
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| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
9  |
5 |
1.5 |
|||
21 |
11 |
1 |
0 |
||
31 |
12 |
9.1 |
0 |
||
28 |
10 |
14.3 |
0 |
0.21 |
|
29 |
10 |
19.4 |
2 |
||
36 |
8 |
5.4 |
|||
36 |
10 |
3.1 |
|||
48 |
11 |
||||
45 |
11 |
3.6 |
|||
57 |
13 |
2.5 |
|||
24 |
13 |
5.6 |
0 |
||
42 |
11 |
2.9 |
|||
48 |
11 |
2.4 |
|||
42 |
11 |
3.9 |
|||
21 |
12 |
0.8 |
|||
45 |
11 |
3.9 |
|||
45 |
11 |
1.5 |
0 |
||
41 |
14 |
4 |
0.2 |
||
44 |
12 |
3 |
0.3 |
0.16 |
|
38 |
11 |
7.4 |
|||
44 |
13 |
3.8 |
|||
22 |
12 |
3.5 |
|||
|
10 |
4.8 |
|||
41 |
11 |
3.1 |
|||
36 |
14 |
5.9 |
0 |
0.24 |
|
38 |
10 |
2.1 |
|||
42 |
13 |
7.7 |
0.3 |
||
12 |
8 |
2.1 |
|||
25 |
26 |
27.8 |
|||
36 |
13 |
6.6 |
|||
37 |
10 |
2.1 |
|||
0 |
8 |
||||
31 |
15 |
6.1 |
|||
38 |
12 |
3.7 |
|||
36 |
11 |
1.6 |
|||
44 |
15 |
1.5 |
|||
22 |
8 |
4.5 |
|||
17 |
9 |
4.2 |
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.
