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目的了解河南省高砷水源的分布状况,为下一步改水降砷减轻饮用高砷水对人体危害提供科学依据。方法根据高砷水源形成规律,在全省可疑地区选择调查点进行饮水砷含量测定,测定方法采用原子荧光光度法。结果水砷浓度≥0.05mg/L的样品22份,占总样品数0.54%(22/4060),分布在8个自然村,占总调查村数4.62%(8/173),高砷水暴露人口数为6400人。结论河南省兰考县和滑县存在饮水砷含量超标自然村,超标严重,暴露人口较多,应尽快纳入农村改水范围进行改水,防治饮水型砷中毒病区形成。
Objective To understand the distribution of high-arsenic water in Henan Province and provide a scientific basis for the next step to reduce water and reduce arsenic to reduce the harm of human drinking water. Methods According to the formation of high-arsenic water sources, the determination of arsenic in drinking water was carried out in suspicious areas of the province. The determination method was atomic fluorescence spectrometry. Results 22 samples with arsenic concentration ≥0.05mg / L, accounting for 0.54% (22/4060) of the total samples, were distributed in 8 natural villages, accounting for 4.62% (8/173) of the total surveyed villages. Number of 6400 people. Conclusions There are drinking water arsenic levels exceeding the natural villages in Lankao County and Huapeng County, Henan Province, which are over-standard and serious and have a large population. Water pollution should be prevented and controlled as soon as possible in rural areas.