Sunscreens and Sun Protection
Some sun exposure is the norm for human beings. Exposure to ultraviolet radiation (UVR) varies widely depending on behaviour, culture, occupation, and geographic location, particularly latitude and altitude. UV exposure increases by 8% for every 1,000 m in altitude. Ozone depletion of 10% has occurred, mainly affecting sun exposure in countries in the Southern Hemisphere and leading to measurable increase in UVC at the Earth’s surface . One in two Australians, and one in five Americans in the United States, may now expect to develop skin cancer in their lifetime . Skin cancer is the commonest malignancy in the Western world, even in northern latitudes, because such countries are inhabited by people with light-coloured skin.
KeywordsSkin Cancer Basal Cell Carcinoma Renal Transplant Recipient Skin Type Skin Cancer Risk
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