Current Pollutant Concentrations

Air Pollutant 1-Hour Concentrations For Tuesday, April 15, 2014, 11:00 pm

Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
41
graph
4
graph
3
graph
   
34
graph
5
graph
1
graph
   
38
graph
5
graph
4
graph
   
N/A
graph
N/A
graph
N/A
graph
   
32
graph
5
graph
6
graph
   
37
graph
4
graph
4
graph
   
30
graph
3
graph
2
graph
   
35
graph
4
graph
     
40
graph
7
graph
0
graph
   
37
graph
5
graph
3
graph
   
29
graph
5
graph
8
graph
4
graph
.19
graph
39
graph
4
graph
3
graph
0
graph
 
30
graph
6
graph
13
graph
   
35
graph
4
graph
1
graph
   
36
graph
5
graph
3
graph
   
33
graph
5
graph
9
graph
   
37
graph
3
graph
3
graph
2
graph
 
34
graph
5
graph
     
40
graph
4
graph
2
graph
   
29
graph
4
graph
6
graph
   
40
graph
4
graph
2
graph
   
40
graph
4
graph
2
graph
   
34
graph
1
graph
2
graph
   
N/A
graph
3
graph
2
graph
N/A
graph
.15
graph
37
graph
5
graph
1
graph
   
39
graph
3
graph
     
34
graph
5
graph
2
graph
   
37
graph
5
graph
     
38
graph
4
graph
1
graph
0
graph
 
28
graph
8
graph
6
graph
0
graph
 
40
graph
3
graph
3
graph
   
36
graph
6
graph
5
graph
0
graph
 
33
graph
5
graph
7
graph
   
38
graph
4
graph
0
graph
   
36
graph
5
graph
7
graph
   
35
graph
4
graph
8
graph
   
38
graph
4
graph
4
graph
   
32
graph
3
graph
11
graph
0
graph
.2
graph
31
graph
4
graph
12
graph
0
graph
.24
graph
31
graph
4
graph
12
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.

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