Air Quality
Good
Water Violations
42
Active Contamination
2
Active Permits
4
Air quality in Essex County is rated good with a median AQI of 44 (269 days measured in 2022). 3 community water systems serve the area, with 42 recent violations in the last 5 years. 4 industrial facilities report toxic chemical releases totaling 482.23 lbs. 3 contamination sites are tracked, all with completed or ongoing remediation.
Air Quality — Essex County (2022)i
AQSThe Air Quality Index measures how clean or polluted the air is on a given day. AQI is reported at the county level. A score of 0-50 is considered good; 51-100 is moderate; above 100 may be unhealthy for sensitive groups.
Median AQI
PM2.5 Daysi
127Ozone Daysi
109Drinking Wateri
SDWISPublic water systems registered to serve this area. Community systems (CWS) provide water to residents year-round. Violations indicate a system failed to meet federal drinking water standards.
Community Systemsi
3Active Systemsi
3Recent Violationsi
42Recent Violations (Last 5 Years)
Industrial Monitoringi
Toxic Release Inventory (TRI)i
TRIWastewater & Stormwater Permits (NPDES)i
NPDESContamination Sitesi
Contaminated sites tracked by the EPA and state agencies. Superfund sites are the most seriously contaminated locations. Brownfields are former industrial properties being cleaned up for reuse. LUST sites have confirmed leaks from underground storage tanks.