Environment
PS 4 — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of PS 4 in BROOKLYN, New York.
Latest Air Quality Index
46
Good · monitor 5.3 km away
PM2.5 annual8.4 µg/m³
Water health violations 10yr3
TRI sites within 1 mi5
Air Quality
EPA AirNow + AQS · 2024
46
AQI latest — Good
46
AQI 7-day avg
3
Days unhealthy in last 90
8.4
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
42.9
Ozone annual ppb
25.8
NO₂ annual ppb
Public Water System
CORNER STONE COURT · PWS NJ1106399
3
Health-based violations (10yr)
0
Acute violations (10yr)
940
Population served
03
Most recent violation type
2025-01-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
5
TRI sites within 1 mile
58
TRI sites within 5 miles
2.6 mi
Nearest Superfund (NPL)
WOLFF ALPORT CHEMICAL COMPANY
0.8 mi
Nearest brownfield
402 SNEDIKER AVE BEVERLY S PLACE
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).