Rivas Miguel, Rojas Elisa, Calaf Gloria M
Department of Physics, Faculty of Science, University of Tarapacá, Arica, Chile.
Oncol Lett. 2012 Apr 1;3(4):893-896. doi: 10.3892/ol.2012.580. Epub 2012 Jan 24.
An increase in the amount of solar ultraviolet light that reaches the Earth is considered to be responsible for the worldwide increase in skin cancer. It has been reported that exposure to excessive levels of solar ultraviolet light has multiple effects, which can be harmful to humans. Experimental ultraviolet light measurements were obtained in several locations in Chile between 2006 and 2009 using wide-band solar light Biometer YES, calibrated according to World Meteorological Organization (WMO) criteria and integrated into the National Meteorological Center of Chile ultraviolet network (DMC). The aim of this study was to determine skin cancer rates in relation to experimental data accumulated during one year of studying the solar ultraviolet index in Chile, in order to explain the possible effect of radiation on skin cancer. The rate of skin cancer per 100,000 persons was considered in Arica, Santiago, Concepción and Valdivia and extrapolated to other cities. Results of the present study showed that the incidence of skin cancer was markedly correlated with accumulative ultraviolet radiation, and rates of skin cancer could be extrapolated to other locations in Chile. There is a steady increase in the rate of skin cancer in cities located nearest to the equator (low latitude) that receive greater accumulated solar ultraviolet radiation, due to the accumulative effects of this type of radiation on the skin. It can be concluded that Arica is a city at sea level that receives higher levels of ultraviolet solar radiation than other locations, which may explain the higher prevalence of skin cancer in the population of this location, compared with other cities in Chile.
到达地球的太阳紫外线量增加被认为是全球皮肤癌发病率上升的原因。据报道,暴露于过量的太阳紫外线下会产生多种影响,这些影响可能对人类有害。2006年至2009年期间,在智利的几个地点使用根据世界气象组织(WMO)标准校准并纳入智利国家气象中心紫外线网络(DMC)的宽带太阳光生物计YES进行了实验性紫外线测量。本研究的目的是根据在智利对太阳紫外线指数进行一年研究期间积累的实验数据来确定皮肤癌发病率,以解释辐射对皮肤癌可能产生的影响。考虑了阿里卡、圣地亚哥、康塞普西翁和瓦尔迪维亚每10万人的皮肤癌发病率,并将其外推到其他城市。本研究结果表明,皮肤癌发病率与累积紫外线辐射显著相关,皮肤癌发病率可以外推到智利的其他地点。由于这种类型的辐射对皮肤的累积影响,在最靠近赤道(低纬度)且接收更多累积太阳紫外线辐射的城市中,皮肤癌发病率呈稳步上升趋势。可以得出结论,阿里卡是一个海平面城市,接收的太阳紫外线辐射水平高于其他地点,这可能解释了与智利其他城市相比,该地区人群中皮肤癌患病率较高的原因。