Ultraviolet (UV) Exposure
The intensity of the UV exposure is related to the angle of the sun. UV radiation is composed of UVA, UVB and UVC rays. UVC rays are absorbed by the ozone layer, while UVA and UVB rays reach Earth’s surface.
UVA rays can penetrate skin (causing leathering or wrinkling), while UVB rays can cause surface burns. Even on days with clouds, UV exposure can still be high enough to cause sunburns. UV rays can reflect off water, sand, and even snow. The damage by UV rays can include first-degree (redness/pain) and/or second-degree (blisters) burns.