AKN / Ultraviolet Radiation /
Learn about Ultraviolet A (UVA) Rays
What is ultraviolet A (UVA) rays?
UVA is a type of ultraviolet radiation. (1)
UVA is the longest wavelength. (1)
UVA affects the inner cells in the top layer of human skin, including the dermis. (1)
UVA has short-term effects of immediate tanning, sunburn. (1)
UVA has long-term effects of premature aging, wrinkles, some skin cancers. (1)
UVA is abut 95% of the Sun’s UV rays that reach the ground of the Earth. (1)
UVA has a higher wavelength, but lower energy levels than other UV rays. (1)
UVA rays are more penetrating than UVB rays, which means they can affect cells deeper in the skin. (1)
UVA rays cause indirect damage to DNA. (1)
UVA is not absorbed by the ozone layer. (1)
What does UVA do?
UVA causes skin to age prematurely, leading to visible effects such as wrinkles. (1)
UVA is associated with som skin cancers. (1)
UVA causes an immediate tanning effect, and sometimes a sunburn. (1)
The effects of UVA rays tend to appear right away. (1)
UVA rays can penetrate windows and clouds. (1)
What contains UVA?
Light from the sun contains UVA. (1)
What are sources of UVA?
sunlight (1)
tanning beds(1)
UVA rays are the main types of light used in tanning beds. (1)
Resources
1. https://www.healthline.com/health/skin/uva-vs-uvb
