Environment
St Constance School — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of St Constance School in Chicago, Illinois.
Latest Air Quality Index
40
Good · monitor 2.1 km away
PM2.5 annual7.2 µg/m³
Water health violations 10yr0
TRI sites within 1 mi2
Air Quality
EPA AirNow + AQS · 2024
40
AQI latest — Good
40
AQI 7-day avg
0
Days unhealthy in last 90
7.2
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
49.9
Ozone annual ppb
33.6
NO₂ annual ppb
Public Water System
CHICAGO · PWS IL0316000
0
Health-based violations (10yr)
0
Acute violations (10yr)
2,746,388
Population served
4H
Most recent violation type
2025-07-02
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
2
TRI sites within 1 mile
191
TRI sites within 5 miles
20.1 mi
Nearest Superfund (NPL)
LENZ OIL SERVICE INC
1.4 mi
Nearest brownfield
4759 N LAWRENCE
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).