China Naming Network - Eight-character Q&A - What does the weather forecast mean that ultraviolet rays are unhealthy?
What does the weather forecast mean that ultraviolet rays are unhealthy?
Strong ultraviolet rays can harm human skin.
When the weather forecast says that ultraviolet rays are unhealthy, it means that the intensity of ultraviolet rays has exceeded the normal range, and the ultraviolet index has reached more than 7, which will cause certain harm to human skin, such as skin aging and sunburn.
The weather forecast is a daily broadcast of the national weather for the next three days released by CCTV.