What is UV rating?

UV assessment or index is a generally accepted standard measurement of ultraviolet strength (UV) radiation produced by the sun. Based on specific times and specific geographical locations, the UV index is now part of most daily weather forecasts. The forecasts provide basic facts on local UV assessments for interpretation by the general public.

Too much exposure to UV rays can cause many problems for people. These include cataracts, accelerated skin aging, skin cancer and burning. Doctors and public health groups strongly recommend that people protect themselves from harmful UV radiation by carrying caps and using sunscreen.

The computer model is usually used to predict UV levels because it is more practical than measuring levels at specific geographical locations. These predictions may not be quite accurate, but are close enough to real reading to meet measuring standards of scientists and government agencies. Computer models are also unusually reliableAl to predict other weather -related conditions.

UV index is easy to interpret. The higher the evaluation on an open linear scale, the higher the risk of some damage to the skin or eyes. Zero represents the UV index at night. Ten evaluation usually testifies to the noon sun on a cloudless day; The assessment of 11 and more is found in geographical areas in the southern hemisphere, where the ozone layer is exhausted.

The

point system incorporated into the UV index indicates that zero up to two evaluations means minimal exposure at high noon. The evaluation between three and four at the same hour is considered low, the score of five to six is ​​considered mild and seven to nine is considered risky. If the UV rating exceeds nine, people are strongly invited to stay inside. Countries that regularly experience high UV rating around noon, often include breaks or siestas during itICH working days to protect workers from a dangerous exposure to UV.

In addition to the information in the predictions, the car rating is provided to sunscreen, so consumers can choose the right strength based on their skin types, UV evaluation for their geographical area and the estimated exposure time of the sun. UV rating on superstructure labels also helps users in buying styles and brands that adequately protect their eyes from damage to UV rays.

Air pollution reduces the amount of UV rays that cause the atmosphere. They also affect other factors such as altitude, distance from the equator and latitude. Přirozený obsah melaninu tmavších lidí poskytuje určitou přirozenou ochranu před UV paprsky.