Site
State
PM AQI* (ug/m3)
Vallecitos-1594 CR-247
NM
116
Broadus
MT
29
Columbia
TN
27
Hurst Road
AK
25
Hidden Valley
AZ
23
Laramie I-80 Mobile
WY
Thibodaux
LA
22
Nipomo Mesa CDF
CA
21
Kendal
FL
20
Los Angeles - N. Main Street