【摘要】：近十幾年來(lái),奎屯墾區(qū)高砷地下水被廣泛用于農(nóng)業(yè)灌溉,會(huì)在一定程度上降低改水措施對(duì)防治砷地方病的效果。為了解高砷地下水灌溉對(duì)居民體內(nèi)砷累積的影響,選擇頭發(fā)和指甲作為評(píng)價(jià)指標(biāo),通過(guò)隨機(jī)采集樣品并用氫化物原子熒光光譜法測(cè)定樣品中總As及As(Ⅲ)質(zhì)量比的方式,對(duì)奎屯高砷地下水灌溉區(qū)居民砷污染健康影響現(xiàn)況進(jìn)行了研究。結(jié)果表明,頭發(fā)樣品中總砷質(zhì)量比為0.20~1.47μg/g(n=37),其中As(Ⅲ)質(zhì)量比為0.06~0.67μg/g(n=32);51.35%的樣品中總砷質(zhì)量比高于衛(wèi)生部標(biāo)準(zhǔn)(0.60μg/g),18.92%高于中國(guó)居民頭發(fā)總砷正常值上限建議值(1.00μg/g),頭發(fā)總砷質(zhì)量比隨居民居住年限和年齡增大而增大。指甲樣品中總砷質(zhì)量比為0.08~0.35μg/g(n=13),且與頭發(fā)中總砷質(zhì)量比呈正相關(guān),當(dāng)?shù)鼐用耋w內(nèi)呈現(xiàn)緩慢的As蓄積特征。改水30年后,奎屯墾區(qū)居民體內(nèi)仍存在較高的砷水平,高砷地下水灌溉造成的人體健康風(fēng)險(xiǎn)不容忽視。
[Abstract]:In recent years, groundwater with high arsenic content in Kuitun Reclamation area has been widely used in agricultural irrigation, which will reduce the effect of water improvement measures on the prevention and control of arsenic-endemic diseases to a certain extent. In order to understand the effect of groundwater irrigation with high arsenic on arsenic accumulation in residents, hair and fingernails were selected as evaluation indexes. The mass ratios of total As and As (鈪，

本文編號(hào)：2397613