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紫外线对皮肤有致癌作用,早为大量资料证实。而由紫外线所诱发的皮肤癌其主要类型为基底细胞癌、鳞状上皮细胞癌及恶性黑色素病。而恶性黑色素病的发病率白种人较黑种人高六倍,因它具有生物学侵袭性及转移势能,所以是一种严重威胁生命的肿瘤。有作者收集了人类产生基底细胞癌及鳞状上皮细胞癌与日光辐射有关的大量资料,证明人体受阳光照射多的部位及在户外工作的或日照充分的地区的人们,皮肤癌的发生则更为常见。有些人种,例如凯而特族
UV carcinogenic effect on the skin, as early as a large number of data confirmed. The main types of skin cancer induced by ultraviolet light are basal cell carcinoma, squamous cell carcinoma and malignant melanoma. The incidence of malignant melanoma Caucasians six times higher than blacks, because it has the biological invasion and metastatic potential, it is a serious life-threatening tumor. Some authors have collected a great deal of information about human basal cell carcinoma and squamous cell carcinoma associated with solar radiation and have shown that people in the sun are exposed to many parts of the body and people working outdoors or in sunny sunshine, Common. Some ethnic groups, such as the Tributary