Is there a relationship between strong ultraviolet rays and hot weather?

This is very important. The intensity of ultraviolet rays is mainly related to the thickness of the ozone layer. The level of ultraviolet radiation is affected by some factors, such as solar height, latitude, cloud cover, altitude, ozone, ground vegetation and so on. When sunlight passes through the atmosphere, almost all UVC and about 90% UVB are absorbed by ozone, water vapor, oxygen and carbon dioxide.

Extended data

WHO has identified nine adverse health consequences caused by ultraviolet radiation, including burns, cortical cataracts, skin malignant melanoma, skin squamous cell carcinoma and skin basal cell carcinoma. It is reported that excessive exposure to ultraviolet radiation is related to many health problems, most notably skin cancer and cataracts. 50%-70% of the total disease burden of skin cancer can be attributed to ultraviolet radiation.

Since the 1970s, the remarkable increase in the incidence of skin cancer worldwide has attracted people's attention. This is related to many factors, such as the length of sun exposure, habits (including occupation), ultraviolet components, sunscreen tools used, and the view that bronzed skin is satisfactory and healthy in society.

Therefore, it is imperative to strengthen people's understanding of the dangers of excessive ultraviolet rays and encourage people to change bad living habits that may lead to diseases such as skin cancer.

Cctv international-how to prevent ultraviolet rays correctly? ?