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What time of day is the sun most dangerous? UV exposure hour by hour

What time of day is the sun most dangerous? UV exposure hour by hour
Photo: KVIA ABC-7 · view original

Not all hours of sunlight carry equal risk. The angle of the sun relative to Earth’s surface determines how much atmosphere UV rays must travel through before reaching the skin. Early morning and late afternoon sun travel a longer path through the atmosphere, with more atmospheric particles absor...

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