Sun elevation: the higher the sun in the sky, the higher the UV radiation level.

太阳高度：太阳在空中越高，紫外线辐射水平就越高。

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If your schedule is flexible, go outdoors in early morning or late afternoon when the sun is lower in the sky. UV radiation peaks at midday, when the sun is directly overhead.

如果你的日程安排灵活，可以尽量选择早晨或者傍晚，尽量避免中午太阳辐射最高峰时刻出行。

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If your schedule is flexible, go outdoors in early morning or late afternoon when the sun is lower in the sky. UV radiation peaks at midday, when the sun is directly overhead.

如果你的日程安排灵活，可以尽量选择早晨或者傍晚，尽量避免中午太阳辐射最高峰时刻出行。

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