RANKABLE EPA COUNTY AQI
Air Quality in ZIP 63155 - Saint Louis, Missouri
County-derived EPA air-quality evidence connected locally through National Data System.
Median AQI
51.0
Maximum AQI
738.0
Good-air-quality days
47.68%
Average PM2.5
7.701 ug/m3
NDS Air Quality Score
19.13
U.S. County Rank
959 of 1,049
Percentile
8.40
Grade
F
What the data means
ZIP 63155 is connected to governed EPA county-level air-quality evidence for St. Louis.
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.