CDC: Take steps to protect yourself from the Sun 　

Emergency Message System

July 10th, 2023

Taking steps to protect yourself from the sun is a year-round responsibility.

Taking steps to protect yourself from the sun is a year-round responsibility. Protect yourself and others from the sun with shade, a shirt, or sunblock (SPF 15+) all year long.

Ultraviolet (UV) radiation is a form of non-ionizing radiation that is emitted by the sun and artificial sources, such as tanning beds. While it has some benefits for people, including the creation of Vitamin D, it also can cause health risks.

Our natural source of UV radiation: The sun
Some artificial sources of UV radiation include:
Tanning beds
Mercury vapor lighting (often found in stadiums and school gyms)
Some halogen, fluorescent, and incandescent lights
Some types of lasers

Types of UV Radiation Rays

UV radiation is classified into three primary types: ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC), based on their wavelengths. Almost all the UV radiation that reaches earth is UVA though some UVB radiation reaches earth. UVA and UVB radiation can both affect health, but UVA penetrates deeper into the skin and is more constant throughout the year.