Uv Index World Map
Encouraging people to reduce their sun exposure can decrease harmful health effects and significantly reduce health care costs.
Uv index world map. The global solar uv index uvi described in this document was developed in an international effort by who in collaboration with wmo unep and. As part of an international effort the uv index was developed by who the united nations environment programme and the world meteorological organization. In countries close to the equator the uvi can be as much as 20. The map always shows the maximum uv index.
The strength of the sun s ultraviolet uv radiation is expressed as a solar uv index or sun index. Indices of 9 and 10 are common in the mediterranean area. The sun index forecast refers to the daily maximum. The strength of the sun s ultraviolet uv radiation is expressed as a solar uv index or sun index.
The sun index forecast refers to the daily maximum. Indices of 9 and 10 are common in the mediterranean area. When you do this the site selects the nearest hour. The uv index is a measure of the intensity of ultraviolet uv rays from the sun.
Some exposure to the sun s rays is beneficial as it helps our bodies produce vitamin d. The higher the index value the greater the potential for damage to the skin and eye and the less time it takes for harm to occur. When you select a city the maximum uv index is shown by default but you can switch this to hourly. It has been designed to indicate the potential for adverse health effects and to encourage people to protect themselves.
Uv index a practical guide global solar uv index a marked increase in the incidence of skin cancers has been observed in fair skinned populations worldwide since the early 1970s. In the short term skin exposed to uv rays can burn. The site takes into account local time and daylight saving time if applicable for the chosen city. Summertime values in northern latitudes rarely exceed 8.
The uv index is an important vehicle to raise public awareness of the risks of excessive exposure to uv radiation and to alert people about the need to adopt protective measures. A sunburn can happen within minutes or over the course of several hours. The uv index climatology shows. But too much exposure to uv rays can have harmful effects.
The global solar uv index uvi is a simple measurement of the uv radiation level at the earth s surface.