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为了探讨宣威肺癌高发的原因,我们以高发区的来宾、榕城乡,中发区的龙场乡,低发区的热水乡为调查对象,采集居民的饮用水源水、主要农作物及其耕地土壤样品,测定其BaP、Cd、Ni、Cr、As含量,结果如下。 一、饮用水中主要污染物的含量(表1)
In order to investigate the causes of high incidence of lung cancer in Xuanwei, we collected the drinking water source water, main crops and their hot water from residents in Rongfa area, Rongcheng Township, Longchang Township in Zhongfa District and hot water villages in low incidence areas. Cultivated soil samples, determination of its BaP, Cd, Ni, Cr, As content, the results are as follows. First, the content of major pollutants in drinking water (Table 1)