RANKABLE EPA COUNTY AQI
Middlesex Air Quality - New Jersey
EPA county-level evidence, NDS comparative intelligence, and 55 connected ZIP profiles.
Median AQI
36.0
Maximum AQI
93.0
Good-air-quality days
83.15%
Average PM2.5
5.626 ug/m3
NDS Air Quality Score
71.33
U.S. County Rank
222 of 1,049
Percentile
78.82
Grade
B
County status
Middlesex is part of the governed NDS rankable EPA county universe.
Connected ZIP codes
Methodology
EPA AQI evidence used here is county-derived. ZIP profiles connect to this evidence through the governed NDS geography relationship.