Pollutant Concentrations for May 9, 2025, 5:00 am EDT
Choose Date Options:
| Station | O3 (ppb) | PM2.5 (µg/m3) | NO2 (ppb) | SO2 (ppb) | CO (ppm) |
|---|---|---|---|---|---|
11  |
5 |
9.5 |
|||
11 |
4 |
6.4 |
|||
20 |
4 |
7.8 |
|||
13 |
7 |
6.9 |
|||
10 |
5 |
20.7 |
|||
22 |
3 |
3 |
|||
19 |
6 |
2.7 |
|||
19 |
2 |
||||
32 |
3 |
0.8 |
|||
16 |
4 |
6.4 |
|||
21 |
6 |
9.4 |
0.7 |
0.16 |
|
23 |
6 |
4.4 |
0.1 |
||
3 |
5 |
18 |
|||
18 |
4 |
4.2 |
|||
15 |
5 |
9.9 |
|||
1 |
14 |
9.5 |
|||
11 |
5 |
16.3 |
0.2 |
||
17 |
4 |
11.3 |
|||
23 |
4 |
5.7 |
|||
38 |
3 |
2.3 |
|||
18 |
5 |
8.1 |
|||
24 |
4 |
2.4 |
|||
22 |
4 |
0.9 |
|||
37 |
3 |
1.2 |
|||
17 |
4 |
3.3 |
|||
17 |
11 |
6.6 |
|||
35 |
2 |
2.8 |
0.1 |
||
27 |
3 |
1.4 |
0.1 |
||
3 |
5 |
9.5 |
|||
30 |
3 |
5.6 |
0 |
||
15 |
5 |
9.4 |
|||
32 |
2 |
||||
15 |
4 |
20.1 |
|||
20 |
4 |
10.8 |
|||
15 |
4 |
14.7 |
0.3 |
||
17 |
4 |
13.7 |
0.1 |
0.17 |
|
24 |
4 |
8 |
0 |
0.16 |
|
26 |
4 |
5.6 |
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.
