UV index

noun

a measure, on a scale of 0 to 11, of the intensity of ultraviolet radiation from the sun at the sun's highest point on a particular day in a particular place, a higher number indicating greater exposure.

UV index

A scale ranging from 0 to 10, used to estimate the risk for sunburn in midday sunlight, with 0 indicating no risk and 10 indicating maximal risk. The UV index is effectively a rough measure of the amount of harmful ultraviolet radiation in the sunlight reaching the Earth's surface at a given location, given the time of year and current atmospheric conditions, expressed in terms of the risks that are associated with exposure to that amount of radiation.

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In the study, they found that Canadians living in Nova Scotia and Prince Edward Island -- provinces with high melanoma incidence rates -- were more likely to report using sun protection, more aware of the health risks of sun exposure, and more apt to follow the UV index.

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The UV index was listed at 11, or extreme.

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The app also tracks the UV index, and it provides recommendations such as “avoid sun around noon, seek shade and use sunscreen,” when UV radiation from the sun is high.

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You should also avoid the sun’s harshest rays: If your phone’s weather app has a UV index, consult it, Holman says.

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One of the major causes of skin cancer is a high UV index - experts recommend taking precautions for anything over level 3.

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UV filter uvula

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