RANKABLE EPA COUNTY AQI
Air Quality in ZIP 21285 - Towson, Maryland
County-derived EPA air-quality evidence connected locally through National Data System.
Median AQI
44.0
Maximum AQI
129.0
Good-air-quality days
70.39%
Average PM2.5
6.755 ug/m3
NDS Air Quality Score
41.22
U.S. County Rank
687 of 1,049
Percentile
34.35
Grade
D
What the data means
ZIP 21285 is connected to governed EPA county-level air-quality evidence for Baltimore.
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.