官厅水库水体多环芳烃残留特征及健康风险评价  

Residue characteristics and health risks of Polycyclic Aromatic Hydrocarbons in Guanting Reservoir

作　　者：王亚飞[1,2] 任姝娟[1,2] 李沫蕊[1,2] 李剑[1,2] 

机构地区：[1]北京师范大学水科学研究院 [2]北京师范大学地下水污染控制与修复教育部工程研究中心,北京100875

出　　处：《北京师范大学学报（自然科学版）》2015年第1期60-63,共4页Journal of Beijing Normal University(Natural Science)

基　　金：国家自然科学基金资助项目(41001351);中央高校基本科研业务费专项资金资助项目(2012LYB35);高等学校博士学科点专项科研基金资助课题(20100003120024)

摘　　要：选用GC-MS分析官厅水库水体中16种多环芳烃(PAHs)的残留情况,并探讨该区域水体PAHs残留特征及其可能的健康风险.研究结果表明,12种PAHs均有不同程度的检出,PAHs总质量浓度为66.20~368.35ng·L-1,与国内其他地区相比,残留水平较低.利用健康风险评价模型对水体中PAHs所致健康风险的评价结果表明,水体中的PAHs的非致癌风险在5.84×10-13~4.90×10-12a-1之间,致癌风险低于2.89×10-9a-1,均低于国际辐射防护委员会推荐水平,目前研究区水体中PAHs类污染物对人体产生的健康风险处于较低水平.Residual characteristics of 16 Polycyclic Aromatic Hydrocarbons(PAHs)in Guanting Reservoir and their health risks were studied.The PAHs were analyzed by GC/MS.A total of 12 PAHs were detected in the water samples.∑PAH concentration ranged from 66.20 to 368.35ng·g-1.Compared with other areas in China,these PAH residue levels were relatively low.Environmental health risk assessment indicated that noncarcinogenic risk index of water PAH ranged from 5.84×10-13 to 4.90×10-12 a-1,cancer risk index of PAH was below 2.89×10-9 a-1,below the level recommended by ICRP.Therefore the health risks of PAHs in the water of Guanting Reservoir were low.

关 键 词：多环芳烃 残留特征 健康风险 官厅水库 

分 类 号：X524[环境科学与工程—环境工程] X824