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1、第28卷第11期环境科学学报Vol.28,No.112008年11月ActaScientiaeCircumstantiaeNov.,2008李天云,黄圣彪,孙凡,等.2008.河蚬对太湖梅梁湾沉积物多环芳烃的生物富集[J].环境科学学报,28(11):2354-2360LiTY,HuangSB,SunF,etal.2008.BioaccumulationbyCorbiculaflumineaofpolycyclicaromatichydrocarbonsfromsedimentsinMeiliangBa
2、y,TaihuLake[J].ActaScientiaeCircumstantiae,28(11):2354-2360河蚬对太湖梅梁湾沉积物多环芳烃的生物富集1,21,32111李天云,黄圣彪,孙凡,查金苗,乔敏,王子健1.中国科学院生态环境研究中心环境水质学国家重点实验室,北京1000852.西南大学资源与环境学院,重庆400716收稿日期:2007211221修回日期:2008204209录用日期:2008207230摘要:以采自清洁水体的河蚬(Corbiculafluminea)为实验生物,利用生
3、物富集实验测试了河蚬对太湖梅梁湾水源地沉积物中多环芳烃的生物富-1(以干重计),平集.研究结果表明:将河蚬暴露于多环芳烃污染程度不同的太湖梅梁湾沉积物中(PAHs总含量分别为991.4～1210.9ng·g-1),暴露7d后各样点中河蚬对PAHs的富集量为233.5～342.6ng·g-1均为1101.0ng·g,其中2、3、4环PAHs分别占总含量的23.5%±419%、26.2%±4.4%和46.6%±8.5%;含量最高的4种多环芳烃依次为芘、萘、菲和荧蒽,它们所占的比例分别为29.4%±8.2%、
4、23.5%±4.9%、14.6%±6.1%和12.5%±3.6%.河蚬对多环芳烃的生物-沉积物生物富集因子(BSAF)为0.09～0.44,低分子量多环芳烃的BSAF要比高分子量多环芳烃的BSAF值高,其中芘、萘、菲和荧蒽的BSAF值分别为0.09±0.04、0.24±0.04、0.44±0.23和0.19±0.09.关键词:河蚬;多环芳烃;生物富集;生物2沉积物生物富集因子;太湖;沉积物文章编号:025322468(2008)1122354207中图分类号:X171.5文献标识码:ABioaccumu
5、lationbyCorbiculaflumineaofpolycyclicaromatichydrocarbonsfromsedimentsinMeiliangBay,TaihuLake1,21,32111LITianyun,HUANGShengbiao,SUNFan,ZHAJinmiao,QIAOMin,WANGZijian1.StateKeyLaboratoryofEnvironmentalAquaticChemistry,CenterforEco2EnvironmentalScience,Chin
6、eseAcademyofScience,Beijing1000852.collegeofResourcesandEnvironmentalScience,SouthwestUniversity,Chongqing400716Received21November2007;receivedinrevisedform9April2008;accepted30July2008Abstract:Bioaccumulationofsediment2associatedpolycyclicaromatichydroc
7、arbons(PAHs)inMeiliangBay,TaihuLake,wasassessedusingabenthicorganism,theAsiaticclam(Corbiculafluminea)collectedfromcleanwater.ThetotalconcentrationsofPAHsinthesedimentsampleswere991.4to-11210.9ng·gdryweight.After72dayexposurestodifferentsediments,concent
8、rationsoftotalPAHsinAsiaticclammusclerangedfrom233.5to34216-1(dryweight).MostofthePAHsintheAsiaticclamswere22,32and42ringPAHsandtheproportiontototalPAHsintheorganismswere2315%ng·g±4.9%,26.2%±4.4%and46.6%±8.5%,respectively.
