Environment
Transition — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Transition in Vernon Hills, Illinois.
Latest Air Quality Index
36
Good · monitor 18.2 km away
PM2.5 annual7.3 µg/m³
Water health violations 10yr0
TRI sites within 1 mi7
Air Quality
EPA AirNow + AQS · 2024
36
AQI latest — Good
36
AQI 7-day avg
0
Days unhealthy in last 90
7.3
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
41.4
Ozone annual ppb
16.0
NO₂ annual ppb
Public Water System
VERNON HILLS - LAKE CO PW · PWS IL0971750
0
Health-based violations (10yr)
0
Acute violations (10yr)
33,207
Population served
27
Most recent violation type
2024-07-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
7
TRI sites within 1 mile
31
TRI sites within 5 miles
8.9 mi
Nearest Superfund (NPL)
WAUCONDA SAND GRAVEL
7.5 mi
Nearest brownfield
FORMER NORTH CHICAGO INN
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).