杭州市地面水中多环芳烃污染现状及风险  

Pollution status quo and risk of polycyclic aromatic hydrocarbons in surface water of Hangzhou City.

作　　者：朱利中[1] 陈宝梁[1] 沈红心[1] 王静[1] 

机构地区：[1]浙江大学环境科学系,浙江杭州310028

出　　处：《中国环境科学》2003年第5期485-489,共5页China Environmental Science

基　　金：浙江省科技计划项目(001103156);浙江省分析测试基金项目(01119)

摘　　要：用HPLC和化学分析法,监测了1999～2002年丰水期和枯水期杭州市地面水中10种多环芳烃(PAHs)的含量和COD、BOD5等常规指标.结果表明,10种PAHs浓度范围为0.989～96.21μg/L,平均浓度30.82μg/L;BaP平均浓度为1.582μg/L,污染较为严重;地面水中PAHs浓度和检出率均为丰水期高于枯水期;COD、BOD5与PAHs总浓度之间没有相关性,因而不能反映地面水PAHs污染的风险;BeP、BaP与PAHs总浓度之间具有较好的线性相关,可作为水体PAHs污染的代表物.常规的自来水处理工艺不能有效地去除源水中微量PAHs等有机污染物,因此地面水特别是饮用源水PAHs污染存在较大的健康风险.The contents of 10 species of polycyclic aromatic hydrocarbons (PAHs) and the routine indexes of COD, BOD5, etc. in the surface water of Hangzhou City were monitored in the periods of plentiful water and low water of the years 1999~2002 with HPLC and chemical analysis techniques. The concentrations of these 10 species of PAHs ranged from 0.989~9.663靏/L, with average concentrations of 30.82g/L; The average concentration of BaP was 1.582g/L, with more serious pollution. Bath the PAH concentrations and its inspection rate of the surface water in period of plentiful water were higher than those in the period of low water. There was no relativity between COD, BOD5 and the total PAHs concentrations therefore, it could not reflect the risk of PAHs pollution of the surface water. BeP and BaP possessed better linear relationship with the total PAHs concentrations thus being the representatives of PAHs pollution of waters. The routine treatment technology of tap water could not remove effectively the trace organic (such as PAHs, etc); pollutants therefore the PAHs pollution of surface water, especial of drinking-water resources, possessed greater health risk.

关 键 词：地面水 多环芳烃 污染现状 健康风险 杭州市 HPLC 化学分析法 

分 类 号：X522[环境科学与工程—环境工程]