Environment
Johnson High School — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Johnson High School in Savannah, Georgia.
Latest Air Quality Index
45
Good · monitor 9.4 km away
PM2.5 annual8.4 µg/m³
Water health violations 10yr0
TRI sites within 1 mi1
Air Quality
EPA AirNow + AQS · 2024
45
AQI latest — Good
45
AQI 7-day avg
3
Days unhealthy in last 90
8.4
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
44.0
Ozone annual ppb
Public Water System
SAVANNAH-MAIN · PWS GA0510003
0
Health-based violations (10yr)
0
Acute violations (10yr)
168,958
Population served
27
Most recent violation type
2020-10-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
1
TRI sites within 1 mile
19
TRI sites within 5 miles
30.4 mi
Nearest Superfund (NPL)
PARRIS ISLAND MARINE CORPS RECRUIT DEPOT
0.6 mi
Nearest brownfield
MARTHA S DRY CLEANERS
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).