Air Quality Index
|
AQI Category(Range)
|
PM10 24 - hr (µg/m3) |
PM2.5 24 - hr (µg/m3) |
NO2 24 - hr (ppb) |
O3 8 - hr (ppb) |
CO 8 - hr (ppm) |
|||||||
|
I low |
I high |
C low |
C high |
C low |
C high |
C low |
C high |
C low |
C high |
C low |
C high |
Good |
0 |
50 |
0 |
50 |
0 |
30 |
0 |
21 |
0 |
25 |
0.0 |
0.9 |
Satisfactory |
50 |
100 |
50 |
100 |
30 |
60 |
22 |
43 |
26 |
51 |
1.0 |
1.7 |
Moderate |
100 |
200 |
100 |
250 |
60 |
90 |
44 |
96 |
52 |
86 |
1.8 |
8.7 |
Poor |
200 |
300 |
250 |
350 |
90 |
120 |
97 |
149 |
87 |
106 |
8.8 |
14.8 |
Very Poor |
300 |
400 |
350 |
430 |
120 |
250 |
150 |
213 |
107 |
381 |
14.9 |
29.7 |
Severe |
400 |
500 |
430 |
700 |
250 |
380 |
214 |
750 |
382 |
450 |
29.8 |
40 |