Heat Index – Average Days Above 99th Percentile

This updated dataset reports the total number of days in which an extreme heat event was above the 959h percentile between 2019-2021 at the county level. Data were obtained from the Centers for Disease Control and Prevention (CDC) Environmental Public … Continued

Social Vulnerability Index, 2020

The Social Vulnerability Index map displays the final Social Vulnerability Index Score and the four theme scores (Socioeconomic, Household Composition, Minority Status, and Housing & Transportation) of each county/census tract ranked against all counties/tracts in the United States. County and … Continued

Maximum Temperature – Average Days Above 95 Degrees

This updated dataset reports the total number of days in which an extreme heat event was above 95 degrees between 2019-2021 at the county level. Data were obtained from the Centers for Disease Control and Prevention (CDC) Environmental Public Health … Continued

EJ Screen Ozone

The ozone indicator in EJScreen reflects potential ozone exposure measured in terms of summer seasonal daily average maximum concentrations in an 8-hour period measured in parts per billion. Ozone information included in EJScreen highlights areas across the U.S. that are … Continued

EJ Screen Air Toxic Respiratory Risk

The air toxics respiratory HI indicator is the respiratory HI from the analyzed carcinogens in ambient outdoor air, as provided by the 2017 Air Toxics Data Update. The data is reported at the Census tract level. Block group level values … Continued

EJ Screen Underground Storage Tanks

The UST indicator quantifies the relative risk of being affected by a LUST for a block group. The indicator is derived by the weighted sum of active LUSTs and sum of active and temporarily out of service USTs within a … Continued

EJ Screen Diesel Particulate Matter

The Diesel PM indicator is the estimated concentration of Diesel PM as provided by the 2017 Air Toxics update. The value of the indicator is in µg /m3 , and reported at the Census tract level. Block group level values … Continued

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 … Continued

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 … Continued