2005年和2006年青海省饮用水含氟砷量调查

Investigation on water-related fluoride and arsenic in Qinghai Province in 2005 and 2006

目的了解2005、2006年青海省饮水含氟、砷量，为饮水型地方性氟、砷中毒疾病的防治和研究提供科学依据。方法在青海省18个县、市采集饮用水样，氟离子选择电极法测定水含氟量，氢化物发生一原子荧光光谱法测定水含砷量。结果有10个县水含氟量为1．00～4．91mg／L，〉1．00mg／L的水样均值为1．61mg／L；有11个县、市水含砷量〉0．mmg／L（国际标准），水含砷量为0．01～1．07mg／L，其中〉0．05mg／L（国内标准）的水样有16份，均值为0．30mg／L。结论青海省目前仍有不少饮水型高氟、砷地区，地方性氟、砷中毒防治形势十分严峻，须进一步加大防治工作力度。

Objective To evaluate the level of fluoride and arsenic of drinking water type to provide scientific basis for setting up controlling strategies. Methods Samples of drinking water were collected in 18 counties. The fluoride and arsenic contents in drinking water were determined with fluoride selective ion electrode method and HG-AFS, repectively. Results Fluoride contents ranged from 1.00 to 4.91 mg/L in county, averaging 1.61 mg/L. Arsenic contents exceeded the international standard of 0.01 mg/L, averaging in the range of 0.01 - 1.07 mg/L. 16 samples had an arsenic content higher than the Chinese standard of 0.05 mg/L, their average was 0.304 mg/L. Conclusions Water-related fluoride and arsenic is prevailing in Qinghai Province. Prevention and control needs to be reinforced.