论文部分内容阅读
不久前,河北省肿瘤研究所、磁省肿瘤防治研究所提供的一份关于食管癌高发区磁县“八五”期间饮用水污染情况的调查报告显示,该县食管癌防治区水源污染严重,水源中可形成强致癌物的“三氮”——硝酸盐氮、亚硝酸盐氮、氨氮含量及氮肥施用量,均显著高于食管癌低发区,表明饮用水三氮含量与食管癌发病呈正相关。
Not long ago, the Hebei Province Cancer Research Institute and the Magnetic Cancer Research Institute provided a survey on drinking water pollution during the “Eighth Five-Year Plan” period in Ci County, a high-incidence area of esophageal cancer. The report shows that water pollution in the county’s esophageal cancer prevention and control areas is serious. The “trinitrogen” that can form strong carcinogens in water sources - nitrate nitrogen, nitrite nitrogen, ammonia nitrogen content and nitrogen fertilizer application amount were significantly higher than those in low incidence areas of esophageal cancer, indicating that drinking water trinitrogen levels and the incidence of esophageal cancer Positive correlation.