RANKABLE EPA COUNTY AQI
Air Quality in ZIP 03561 - Littleton, New Hampshire
County-derived EPA air-quality evidence connected locally through National Data System.
Median AQI
38.0
Maximum AQI
113.0
Good-air-quality days
81.32%
Average PM2.5
6.420 ug/m3
NDS Air Quality Score
53.12
U.S. County Rank
516 of 1,049
Percentile
50.67
Grade
C
What the data means
ZIP 03561 is connected to governed EPA county-level air-quality evidence for Grafton.
ZIP ranking note: ZIPs are not separately ranked. The rank shown on this page is the associated county rank because the EPA AQI evidence used here is county-derived.
County context
Methodology
EPA AQI evidence is county-derived. NDS connects that evidence to ZIP geography where a governed county relationship exists. NDS does not claim that EPA directly ranks ZIP codes.