Current Pollutant Concentrations

Air Pollutant 1-Hour Concentrations For Sunday, February 1, 2015, 6:00 pm

Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
34
graph
3
graph
2
graph
   
34
graph
4
graph
3
graph
   
24
graph
5
graph
15
graph
   
27
graph
3
graph
10
graph
   
35
graph
2
graph
2
graph
   
27
graph
5
graph
7
graph
   
33
graph
8
graph
5
graph
   
36
graph
2
graph
     
32
graph
5
graph
4
graph
   
27
graph
4
graph
6
graph
   
33
graph
2
graph
5
graph
0
graph
.18
graph
31
graph
3
graph
6
graph
2
graph
 
31
graph
4
graph
6
graph
   
33
graph
5
graph
4
graph
   
25
graph
4
graph
11
graph
   
29
graph
4
graph
7
graph
   
22
graph
7
graph
16
graph
1
graph
 
34
graph
5
graph
     
34
graph
3
graph
4
graph
   
33
graph
2
graph
3
graph
   
23
graph
7
graph
11
graph
   
32
graph
4
graph
4
graph
   
33
graph
8
graph
3
graph
   
31
graph
7
graph
5
graph
1
graph
.2
graph
34
graph
8
graph
2
graph
   
34
graph
3
graph
     
34
graph
3
graph
3
graph
   
30
graph
5
graph
6
graph
   
31
graph
4
graph
5
graph
0
graph
 
34
graph
6
graph
3
graph
0
graph
 
33
graph
3
graph
3
graph
   
30
graph
4
graph
7
graph
0
graph
 
34
graph
4
graph
4
graph
   
34
graph
2
graph
1
graph
   
21
graph
8
graph
18
graph
   
28
graph
3
graph
9
graph
   
30
graph
8
graph
10
graph
   
20
graph
6
graph
25
graph
1
graph
.26
graph
28
graph
5
graph
11
graph
2
graph
.28
graph
28
graph
6
graph
10
graph
1
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