San Jose Air Risk Screening

Mean risk score

42.8 / 100

LowModerateElevatedHigh

41.2

Median

29.0-61.7

P5-P95 range

28.3%

Area above elevated

±10.8

Std deviation

Area distribution

Low 0.4% Mod 71.3% Elev 28.3% High 0.0%

What the levels mean

Low 0-25 Background air-pollution exposure typical of the wider region. No single indicator stands out.

Moderate 25-50 Mixed indicators with at least one pollutant or stressor above the regional median.

Elevated 50-75 Multiple pollutants or proximity stressors well above regional medians - meaningful screening concern.

High 75-100 Top-tier exposure across several indicators (e.g. diesel PM, traffic, toxics). Priority for follow-up.

Risk is a 0-100 composite score generated using a spatial machine learning model that integrates environmental factors such as PM2.5 levels, traffic proximity, ozone concentrations, diesel emissions, the presence of hazardous waste sites, and etc. to estimate overall pollution risk.

This tab shows site-level risk for individual schools. Click any school icon on the map and its modeled air-pollution risk score plus the underlying tract-level indicators will appear below.

Selected school

Click on a school icon on the map to view its air pollution risk and details.

Data: EPA EJScreen · OSM · DEM · PurpleAir · GHAP
Built by: Kelly Liu, Founder and President of ConServe

Risk score

Low0-25

Moderate25-50

Elevated50-75

High75-100