Figure 2.
UV radiation global distribution. UV radiation levels are measured in Joules of ambient energy per square meter (J/m2). Darker hues correspond to higher levels of radiation.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.