Current Pollutant Concentrations

Air Pollutant 1-Hour Concentrations For Sunday, November 23, 2014, 10:00 am

Station O3 (ppb) PM2.5 (µg/m3) NO2 (ppb) SO2 (ppb) CO (ppm)
6
graph
25
graph
20
graph
   
N/A
graph
N/A
graph
N/A
graph
   
19
graph
11
graph
12
graph
   
35
graph
7
graph
3
graph
   
28
graph
11
graph
10
graph
   
31
graph
10
graph
6
graph
   
22
graph
26
graph
6
graph
   
14
graph
7
graph
     
28
graph
14
graph
5
graph
   
25
graph
12
graph
8
graph
   
29
graph
8
graph
10
graph
1
graph
.23
graph
31
graph
11
graph
6
graph
1
graph
 
29
graph
9
graph
8
graph
   
32
graph
11
graph
3
graph
   
22
graph
12
graph
9
graph
   
32
graph
12
graph
5
graph
   
7
graph
16
graph
18
graph
1
graph
 
23
graph
19
graph
     
16
graph
18
graph
14
graph
   
11
graph
14
graph
8
graph
   
28
graph
9
graph
8
graph
   
8
graph
16
graph
22
graph
   
7
graph
25
graph
12
graph
   
5
graph
25
graph
17
graph
0
graph
.43
graph
16
graph
15
graph
4
graph
   
8
graph
8
graph
     
14
graph
19
graph
12
graph
   
35
graph
10
graph
     
17
graph
14
graph
18
graph
18
graph
 
14
graph
5
graph
7
graph
0
graph
 
37
graph
8
graph
5
graph
   
6
graph
7
graph
10
graph
1
graph
 
14
graph
13
graph
13
graph
   
24
graph
13
graph
6
graph
   
21
graph
9
graph
16
graph
   
13
graph
13
graph
21
graph
   
15
graph
15
graph
21
graph
   
8
graph
13
graph
26
graph
1
graph
.34
graph
26
graph
12
graph
8
graph
1
graph
.21
graph
27
graph
16
graph
6
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