六溴环十二烷(HBCDs)在南极菲尔德斯半岛和阿德利岛的分布  

Distribution of hexabromocyclododecanes(HBCDs)in Fildes Peninsula and Ardley Island,Antarctica

作　　者：李红华[1] 李英明[1] 王璞[2] 任文强 张庆华[1] 江桂斌[1] LI Honghua;LI Yingming;WANG Pu;REN Wenqiang;ZHANG Qinghua;JIANG Guibin(State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing,100085,China;Hubei Key Laboratory of Industrial Fume and Dust Pollution Control,School of Environment and Health,Jianghan University,Wuhan,430056,China)

机构地区：[1]中国科学院生态环境研究中心,环境化学与生态毒理学国家重点实验室,北京100085 [2]江汉大学环境与健康学院,工业烟尘污染控制湖北省重点实验室,武汉430056

出　　处：《环境化学》2023年第3期813-821,共9页Environmental Chemistry

基　　金：国家海洋局项目(09/10GW08,10/11GW02);中国科学院技术支撑人才项目(2021)资助.

摘　　要：2016年,六溴环十二烷(HBCDs)开始在全球禁止使用后,用它加工生产的阻燃材料的释放可能是其重要的污染来源.本文用液相色谱-三重四极杆串联质谱分析了南极菲尔德斯半岛和阿德利岛的环境和生物样品中的α-,β-,γ-HBCD.HBCDs在土壤、粪土(企鹅粪土层)和海洋沉积物中全部检出,浓度范围为7.10—792 pg·g^(−1)dw(干重).其中,苔藓和地衣中的浓度范围为23.4—951 pg·g^(−1)dw,海草和褐藻中浓度范围为<LOD(检出限)—5977 pg·g^(−1)dw,水生动物样品浓度为<LOD—43.8 ng·g^(−1)lw(脂肪重).γ-HBCD的比例从环境样品到陆生植物、水生植物、水生动物样品逐渐递减.水生动物样品中α-HBCD浓度与脂肪含量显著相关.中国长城站附近的苔藓样品中HBCDs浓度较高,表明人类活动可能是HBCDs的重要来源.The release from flame retardant materials containing hexabromocyclododecanes(HBCDs)may be the important sources since HBCDs have been phased out globally in 2016.In this study,α-,β-,γ-HBCD in the environment and biota samples from Fildes Peninsula and Ardley Island in Antarctica were investigated using a high performance liquid chromatography coupled to a triple quadrupole mass spectrometer(HPLC-MSMS).Total HBCD concentrations were in ranges of 7.10—792 pg·g^(−1)dw(dry weight)in soil,dropping-amended soil and sediment samples,23.4—951 pg·g^(−1)dw in moss and lichen samples,<LOD—5977 pg·g^(−1)dw in sea grass and brown seaweed samples,and<LOD—43.8 ng·g^(−1)lw(lipid weight)in aquatic organism samples,respectively.A decreasing trend ofγ-HBCD contribution was observed from environment samples to terrestrial vegetation samples,aquatic vegetation samples,and aquatic organism samples.The concentrations ofα-HBCD in aquatic organism samples were significantly correlated with the lipid contents.High HBCD contamination was found in the moss sample collected from the site near the Chinese Great Wall Station,which indicated that anthropogenic activities might be the important in of HBCDs in the local environment.

关 键 词：六溴环十二烷 南极 土壤 生物 

分 类 号：X50[环境科学与工程—环境工程]