New Jersey(NJ)

Air quality overview and monitoring data — 2025

261

Monitoring Sites

7,085

Active Monitors

21

Counties with Data

99

Cities Monitored

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County Air Quality

CountyMedian AQI90th %ileMax AQIGoodModerateUSGUnhealthy
Middlesex3655931483000
Monmouth3749161134722
Atlantic38541051443610
Morris38551151582020
Warren38601051393710
Bergen40601081285110
Ocean40591541393901
Hudson41571331364510
Hunterdon41611221314520
Passaic41581081384120
Cumberland42611231304530
Gloucester43651431264620
Mercer43661221735750
Camden44611681255311
Union4562711126800

Pollutant Trends

Ozone

No data available

PM2.5

No data available

PM10

No data available

CO

No data available

NO2

No data available

SO2

No data available