EJ Screen Air Toxic Cancer Risk

The air toxics cancer risk indicator is the estimated lifetime inhalation cancer risk from the analyzed carcinogens in ambient outdoor air, as provided by the 2017 Air Toxics data Update. The value of the indicator is persons per million lifetime. The data is reported at the Census tract level. Block group level values are assigned…

EJ Screen Traffic Proximity

The traffic proximity indicator is based on AADT count divided by distance in meters from the Census block centroid. The proximity score is based on the traffic within a search radius of 500 meters (or further if none is found in that radius). This distance was selected to be large enough to capture the great…

EJ Screen Lead Paint Exposure

The lead paint indicator is the percentage of occupied housing units built before 1960, calculated from the U.S. Census Bureau’s ACS 5-year summary estimates on age of housing stock. EJScreen uses age of housing stock as a surrogate for potential lead exposure as regulations banning lead-based residential paint in 1978 led to the reduction and…

EJ Screen PM 2.5

The PM 2.5 indicator is a measure of potential exposure to inhalable particles that are 2.5 micrometers or smaller. This is measured in terms of annual average concentration in air measured in micrograms per cubic meter. PM 2.5 information included in EJScreen highlights areas across the U.S. that are not meeting the national ambient air…

Median Household Income, 2021

This layer displays the total number and percentage of children in poverty (in households with income or below 100% of the Federal Poverty Level). Data are from the latest US Census Bureau Small Area Income and Poverty Estimates (SAIPE) dataset and are available at the county, state, and school-district level.