江汉平原高砷地下水区水、沉积物砷含量及饮水型地方性砷中毒调查  

Investigation of arsenic concentration in water,sediment and prevalence of endemic arsenic poisoning caused by drinking water in regions of Jianghan plain with high arsenic concentration groundwater

作　　者：石青[1] 李明健[1] 熊培生[1] 周素华[1] 陈致泽[1] 

机构地区：[1]湖北省疾病预防控制中心,武汉430079

出　　处：《江苏预防医学》2015年第1期11-13,共3页Jiangsu Journal of Preventive Medicine

基　　金：湖北省自然科学基金资助项目(2010CDZ045)

摘　　要：目的通过对水砷、沉积物砷含量及饮水型地方性砷中毒的调查,进一步掌握江汉平原饮水型地方性砷中毒发病动态。方法 2010-2013年以江汉平原中部的仙桃市、洪湖市作为典型研究区,水砷、沉积物砷含量检测采用二乙基二硫代氨基甲酸银分光光度法,砷中毒诊断采用地方性砷中毒诊断标准。结果 2010-2013年间水砷均值呈逐年递减,但年间差异无统计学意义(F=0.76,P=0.52);各监测点沉积物砷含量与土层深度均呈负相关(r值分别为-0.674、-0.519、-0.571,P值均<0.05)。结论江汉平原饮水型地方性砷中毒区土层深度与砷含量呈负相关。Objective To understand current status of endemic arsenic poisoning caused by drinking water in Jianghan plain by studying arsenic concentration in water , sediment and prevalence of endemic arsenic poisoning caused by drinking water. Methods In typical study areas of Xiantao city and Honghu city in middle of Jianghan plain, arsenic concentration in water or sediment was determined by silver diethyl dithiocarbamate （Ag-DDC） spectrophotometry. Endemic arsenic poisoning diagnostic criteria was used for arsenic poisoning diagnosis. Results The mean value of arsenic concentration in water was decrea- sing every year from 2010 to 2013,with no significant difference （F=0.76,P=0.52）. Arsenic concentration in sediment had negative correlation with soil depth at all monitoring sites（r=- 0. 674,- 0. 519,- 0. 571, all P〈0. 05）. Conclusion The depth of soil had negative correlation with arsenic concentration in Jianghan plain.

关 键 词：水砷 沉积物 砷中毒 高砷地区 

分 类 号：R123.5[医药卫生—环境卫生学]