At a glance
Tracking sunlight and UV exposures in a standard way can help us identify regions of the country with high exposure and assess trends over time.
We Track That
The Tracking Network includes data on exposure to sunlight and UV in the United States. These data come from Emory University's Environmental Remote Sensing Group at the Rollins School of Public Health. Additional data sources include LegiScan and the American Society for Dermatologic Surgery Association.
Types of Data
This indicator provides state and county level data on monthly and annual average exposure to sunlight.
This indicator provides state and county level data on monthly and annual average doses of UV irradiance. These are measured daily and at noon.
This indicator provides state-level data on laws related to UV exposure among minors. The laws regard sunscreen use in schools and indoor tanning restrictions for individuals younger than 18 years.
Access the Data
Use the Data Explorer to create custom maps, tables, and charts.
View data in simple Quick Reports.
Get machine-readable data through the Application Program Interface (API).
Data in Action
The Tracking Network's sunlight and UV exposure data can be used for several actions.
- Understanding how solar radiation levels are changing across geography and time
- Identifying areas where intensity may be increasing
- Informing planning and implementation of programs and services for people living in regions of high exposure
- Identifying states with laws or policies that help reduce exposure to sunlight and UV, particularly among minors
Monitoring, collecting, and disseminating sunlight and UV exposure information supports development of policies and educational resources. This is an important first step to preventing the harmful effects related to excessive exposures.