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本文通过胃癌高发区嘉定县1974～1979年六年间1091例胃癌死亡例,联系他们使用过的1178眼水井的“三氮”含量,分析认为:硝酸盐氮、亚硝酸盐氮含量的高低与胃癌死亡率的高低无明显关系。
This article through the high incidence of gastric cancer in Jiading County in 1974 to 1979, 1091 cases of gastric cancer deaths, with their 1178 wells were used in the “three nitrogen” content analysis: nitrogen and nitrite nitrogen levels and gastric cancer No significant correlation between the level of mortality.