杭州师范大学学报(自然科学版)
杭州師範大學學報(自然科學版)
항주사범대학학보(자연과학판)
Journal of Hangzhou Normal University (Natural Sciences Edition)
2015年
5期
483-488
,共6页
吕鲜臻%王志超%陈星迪%李翡翡%史天麟%杨华云
呂鮮臻%王誌超%陳星迪%李翡翡%史天麟%楊華雲
려선진%왕지초%진성적%리비비%사천린%양화운
多氯联苯%生物富集%水环境%钱塘江
多氯聯苯%生物富集%水環境%錢塘江
다록련분%생물부집%수배경%전당강
polychlorinated biphenyls%bioaccumulation%water environment%Qiantang River
因为具有不易降解、易生物蓄积、会对生物及人体产生毒害效应等特征,近年来,多氯联苯(PCBs)在生物体内的富集及其生态风险已引起人们的广泛关注.本文利用GC/M S检测钱塘江流域(杭州段)沉积物、底栖生物及鱼体中PCBs的浓度含量(干重)及分布特征,进一步运用生物富集系数评价了钱塘江流域(杭州段) PCBs的富集状况.结果表明,沉积物中PCBs含量为6.93~10.14 ng/g ,平均含量为8.85 ng/g ;底栖生物(螺丝)中PCBs含量为14.83~20.43 ng/g ,平均含量为15.95ng/g ;鲫鱼体内中PCBs含量为19.66~25.93 ng/g ,平均含量为21.62ng/g ;鲢鱼体内PCBs含量为19.25~21.34 ng/g ,平均含量为20.27ng/g .富集系数进一步表明,钱塘江流域(杭州段)生物对PCBs有较强的生物富集性,有一定潜在的环境风险.
因為具有不易降解、易生物蓄積、會對生物及人體產生毒害效應等特徵,近年來,多氯聯苯(PCBs)在生物體內的富集及其生態風險已引起人們的廣汎關註.本文利用GC/M S檢測錢塘江流域(杭州段)沉積物、底棲生物及魚體中PCBs的濃度含量(榦重)及分佈特徵,進一步運用生物富集繫數評價瞭錢塘江流域(杭州段) PCBs的富集狀況.結果錶明,沉積物中PCBs含量為6.93~10.14 ng/g ,平均含量為8.85 ng/g ;底棲生物(螺絲)中PCBs含量為14.83~20.43 ng/g ,平均含量為15.95ng/g ;鯽魚體內中PCBs含量為19.66~25.93 ng/g ,平均含量為21.62ng/g ;鰱魚體內PCBs含量為19.25~21.34 ng/g ,平均含量為20.27ng/g .富集繫數進一步錶明,錢塘江流域(杭州段)生物對PCBs有較彊的生物富集性,有一定潛在的環境風險.
인위구유불역강해、역생물축적、회대생물급인체산생독해효응등특정,근년래,다록련분(PCBs)재생물체내적부집급기생태풍험이인기인문적엄범관주.본문이용GC/M S검측전당강류역(항주단)침적물、저서생물급어체중PCBs적농도함량(간중)급분포특정,진일보운용생물부집계수평개료전당강류역(항주단) PCBs적부집상황.결과표명,침적물중PCBs함량위6.93~10.14 ng/g ,평균함량위8.85 ng/g ;저서생물(라사)중PCBs함량위14.83~20.43 ng/g ,평균함량위15.95ng/g ;즉어체내중PCBs함량위19.66~25.93 ng/g ,평균함량위21.62ng/g ;련어체내PCBs함량위19.25~21.34 ng/g ,평균함량위20.27ng/g .부집계수진일보표명,전당강류역(항주단)생물대PCBs유교강적생물부집성,유일정잠재적배경풍험.
Because of the nondegradation ,trend in bioaccumulation and adverse effects on humans and other animals , polychlorinated biphenyls (PCBs) have received wide attention on the bioaccumulation potentials and ecological risks in recent years .The spatial characteristics and concentration content of PCBs (dry weight) in sediments and organisms are identified and quantified by GC‐MS /MS in Qiantang River basin (Hangzhou section) .The accumulation of PCBs in the area is also analyzed and evaluated using the bioaccumulation factors (BAFs) method .The results show that the contents of PCBs vary from 6 .93~10 .14 ng/g ,14 .83~20 .43 ng/g ,19 .66~25 .93 ng/g and 19 .25~ 21 .34 ng/g in sediment ,screw , crucian and chub ,respectively ,with an average of 8 .85 ng/g ,15 .95ng/g ,21 .62 ng/g and 20 .27 ng/g ,respectively .The value of BAF shows that PCBs has high bioaccumulation in Qiantang River basin (Hangzhou section) which has the potential environmental risk .