Current Pollutant Concentrations

Air Pollutant 1-Hour Concentrations For Tuesday, September 2, 2014, 9:00 pm

Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
19
graph
3
graph
7
graph
   
28
graph
1
graph
4
graph
   
12
graph
2
graph
12
graph
   
23
graph
8
graph
1
graph
   
3
graph
9
graph
24
graph
   
28
graph
10
graph
N/A
graph
   
34
graph
5
graph
1
graph
   
23
graph
4
graph
     
22
graph
5
graph
5
graph
   
19
graph
9
graph
4
graph
   
18
graph
10
graph
10
graph
0
graph
.23
graph
20
graph
9
graph
7
graph
0
graph
 
16
graph
9
graph
6
graph
   
42
graph
5
graph
2
graph
   
17
graph
4
graph
3
graph
   
11
graph
7
graph
4
graph
   
13
graph
6
graph
9
graph
0
graph
 
30
graph
3
graph
     
14
graph
3
graph
6
graph
   
40
graph
2
graph
2
graph
   
19
graph
5
graph
4
graph
   
18
graph
4
graph
9
graph
   
18
graph
7
graph
7
graph
   
24
graph
8
graph
6
graph
0
graph
.18
graph
32
graph
4
graph
1
graph
   
13
graph
4
graph
     
25
graph
4
graph
3
graph
   
23
graph
19
graph
     
16
graph
5
graph
N/A
graph
1
graph
 
15
graph
3
graph
9
graph
0
graph
 
12
graph
7
graph
12
graph
   
20
graph
2
graph
5
graph
11
graph
 
22
graph
3
graph
14
graph
   
31
graph
3
graph
2
graph
   
2
graph
6
graph
35
graph
   
5
graph
7
graph
31
graph
   
12
graph
5
graph
20
graph
   
3
graph
6
graph
30
graph
1
graph
.45
graph
27
graph
6
graph
21
graph
0
graph
.32
graph
17
graph
6
graph
21
graph
0
graph
 

Order by Station Location (East to West)

Note: 
Ontario 1-hour AAQC for O3 = 80 ppb
Ontario 1-hour AAQC for NO2 = 200 ppb
Ontario 1-hour AAQC for SO2 = 250 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.

Disclaimer