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NO-3 contamination of groundwater and preventable measures in the high distributive district of esophagus cancer in Linzhou and Anyang
Author(s): 
Pages: 8-11
Year: Issue:  6
Journal: HYDROGEOLOGY AND ENGINEERING GEOLOGY

Keyword:  地下水NO-3食管癌;
Abstract: 河南省林州市-安阳县是我国著名的食管癌高发区,食管癌严重地危害着当地居民的生命与健康.本文根据饮用水的NO-3分析资料,阐明了亚硝胺的前体物NO-3的分布与食管癌的地理分布具有明显的相关性.居民饮用NO-3超标的浅层地下水、旱井水是导致食管癌的重要原因之一.70年代以来,大量施用化肥是引起饮用地下水NO-3污染的根本原因,它导致的后果使林州市食管癌发病率和死亡率下降缓慢.本文结合14C资料对地下水NO-3-N污染机理进行了分析,并提出了相应的防治措施.
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