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目的:查明车河镇车河村小学、灰乐屯、拉宜屯水砷超标原因,为政府改水工程的整改提供科学依据。方法:对三地相关水质砷污染超标展开卫生学调查,并采集相应的水质进行实验室检测。结果:三处农村饮水工程的水砷含量范围在0.120 mg/L～0.175 mg/L,平均值为0.149 mg/L,超过国家标准0.05 mg/L的3倍,其中车河村小学、灰乐屯、拉宜屯的水中砷含量其平均值分别为0.128 mg/L、0.148 mg/L、0.171 mg/L,分别超过标准限值的2.6倍、3.0倍、3.4倍。结论:矿产品开发产生的废水和废碴的不科学处理是导致水源中砷污染的主要原因,应引起政府相关部门的重视,切实做好高水砷污染地区的饮水工程项目。
OBJECTIVE: To find out the cause of exceeding the standard of arsenic in Chehehe Elementary School, Fengle Tuen and Laitun of Chehe Town, providing a scientific basis for the rectification of government water diversion project. Methods: Hygiene investigation was carried out on excessive levels of arsenic in water related to the three places, and the corresponding water quality was collected for laboratory testing. Results: The contents of arsenic in water of three rural drinking water projects ranged from 0.120 mg / L to 0.175 mg / L, with an average value of 0.149 mg / L, more than three times the national standard of 0.05 mg / L. Among them, Chehehe Elementary School, , And the average arsenic content in Laishitun water was 0.128 mg / L, 0.148 mg / L and 0.171 mg / L, respectively, which exceeded the standard limits by 2.6 times, 3.0 times and 3.4 times respectively. Conclusion: The unscientific treatment of waste water and waste ballast caused by the development of mineral products is the main cause of arsenic pollution in water sources. It should be taken seriously by relevant government departments and the drinking water projects in high water and arsenic contaminated areas should be conscientiously done.