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目的探讨地震对饮水型地方性砷中毒流行的潜在影响。方法于地震后100天,选择文县、西和县、两当县、成县、徽县和舟曲县等6个县开展饮用水砷含量现况调查,各县采泉水、井水和地表水等水源类型水样共40份,并搜集相关数据和资料。水砷检测采用氢化物发生-原子荧光法(HG-AFS)。结果 240份水样分布在6县29个乡镇的64个村,水砷含量≥0.01mg/L水样9份占3.75%(9/240),受威胁人口为1691人,≥0.05mg/L水样的3份占33.3%(3/9),井水2份、泉水6份、溪水1份。在文县和两当县各有18处和21处泉水水源发生明显变化。结论地震灾区局部有发生饮水型地方性砷中毒流行的潜在危险性,应建立健全地方性砷中毒防治的长效机制。
Objective To explore the potential impact of earthquakes on endemic arsenic poisoning in drinking-water areas. Methods 100 days after the earthquake, we selected 6 counties including Wen County, Xihe County, Liangdang County, Chengxian County, Huixian County and Zhouqu County to investigate the status of arsenic in drinking water. The counties collected spring water, well water and surface Water and other types of water samples were 40, and collect relevant data and information. Water arsenic detection using hydride generation - atomic fluorescence (HG-AFS). Results 240 water samples were distributed in 64 villages in 29 towns and 6 counties of 6 counties with 9 samples of 3.75% (9/240) Arsenic content ≥ 0.01mg / L, 1691 threatened population and ≥ 0.05 mg / L Three samples of water sample accounted for 33.3% (3/9), two well water, six spring water and one stream water. In Wen County and Liangdang County, there are 18 and 21 spring water sources have changed significantly. Conclusion There is a potential risk of epidemic endemic arsenism in drinking-water areas in the earthquake-stricken areas, and a long-term mechanism for prevention and control of endemic arsenism should be established.