Heat Index – Average Days Above 105 Degrees

This updated dataset reports the total number of days in which an extreme heat event was above 105 degrees between 2019-2021 at the county level. Data were obtained from the Centers for Disease Control and Prevention (CDC) Environmental Public Health Tracking Network (EPHTN).

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 by repeating each parent tract level value.

Uninsured Population by County

Layer displays information about the insurance status of the population age 0-64. The data are from the 2020 Small Area Health Insurance Estimates, released by the US Census Bureau in August, 2022.

Heat Index – 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 Tracking Network (EPHTN).

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 finally an end to the use of such paint in housing. The percentage
of older housing units is a proxy for potential exposure to lead paint and lead-containing dust that
accumulates indoors, in homes, or in other buildings where lead paint was used. EJScreen uses housing
units built before 1960.