World Health Organization recently warned people not to too much sun, because this is the skin, eyes and immune system may result in serious consequences. Strong light is the cause of many chronic skin diseases, which include a variety of skin cancer. According to United Nations Environment Programme Statistics Every year, more than 200 million non-melanoma skin cancer and 200 000 patients with malignant melanoma arising.
World Health Organization urged relevant government departments use by the World Health Organization, World Meteorological Organization, United Nations Environment Programme and the international radiation protection committee to develop a global integrated solar index (standard) tables, the global index table to direct sunlight each day at noon around the world maximum sun light exposure, the index value to the highest value ranked from 0, indicating to the human skin and eye damage may result in the largest, low-value is 1 ─ 2, the equivalent of a 3 ─ 4, the high value is 5 ─ 6 very high value is 7 ─ 8, maximum value is above 9.
A World Health Organization officials stressed that "the international news media should report to the local daily sunlight index, to let people know they need to know this new type of weather."
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