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目的探讨吉林省环境地理特征与砷中毒病区的成因,以便科学的制定防治措施。方法采用流行病学调查结果与水文地质资料相结合的方法。结果调查区第四纪下更新统承压水是主要富砷含水层,是潜水砷含量的4.89～22.02倍,岩石中砷含量偏高是病区主要砷源,饮水中NO2、HN4、COD含量偏高是高砷富集区的主要特征。结论建议病区改水应开采第三系承压水,可达到控制砷、氟2种疾病的发生与流行。
Objective To explore the characteristics of environmental geography in Jilin Province and the causes of arsenic poisoning ward in order to make scientific prevention and control measures. Methods A combination of epidemiological findings and hydrogeological data was used. Results The Lower Quaternary Pleistocene under pressure water in the study area is the main arsenic-rich aquifer, which is 4.89-22.02 times of the arsenic content in the submarine. The high arsenic content in the rock is the main arsenic source in drinking water and the contents of NO2, HN4 and COD in drinking water High is the main feature of high arsenic-rich areas. Conclusions It is suggested that the third-generation confined water should be tapped for water diversion in Ward, which can control the occurrence and prevalence of two kinds of diseases, arsenic and fluorine.