Comparison of using polyurethane foam passive samplers and tree bark samples from Western China to determine atmospheric organochlorine pesticide  

作　　者：Qiuxu Li Yao Lu Jun Jin Guangyao Li Peng Li Chang He Ying Wang 

机构地区：[1]College of Life and Environmental Sciences,Minzu University of China,Beijing 100081,China [2]Engineering Research Center for Food Environment and Health,Beijing 100081,China

出　　处：《Journal of Environmental Sciences》2016年第3期90-98,共9页环境科学学报（英文版）

基　　金：funded through the Minzu University of China fund for first-class university and first-class discipline construction projects(No.YLDX01013);the Institution of Higher Education Innovation Talent Recruitment Program(111 Program,No.B08044);the Minzu University Undergraduate Research Training Program(No.GCCX2013110034);the Fundamental Research Funds for the Central Universities(Nos.0910KYQN50,2015MDTD23C)

摘　　要：Polyurethane foam（PUF）passive samplers were deployed and tree bark samples were collected at 15 sites across western China in 2013,and the organochlorine pesticide（OCP）concentrations in the samples were determined.Dichlorodiphenyltrichloroethane and its degradation products（collectively called DDTs）,hexachlorocyclohexanes（HCHs）,and hexachlorobenzene（HCB）were the dominant OCPs in the PUF samples and tree bark samples.The mean DDTs,HCHs and HCB concentrations were 33,22 and 18 ng/sample in the PUF samples,and 428,74,and 43 ng/（g lipid weight（lw））in the tree bark,respectively.The OCP concentrations in the air,calculated using PUF–air and tree-bark–air partitioning models,were of the same order of magnitude.Both sample types showed that relatively fresh inputs of DDT and HCHs to the environment have occurred in western China.Meanwhile,PUF passive samplers were compared with the use of tree bark samples as passive samplers.The OCP compositions in the PUF and tree bark samples were different.Only the relatively stable OCPs（such as HCB,β-HCH and p,p′-dichlorodiphenyldichloro-ethylene（DDE））were consistent in the PUF and tree bark samples.Polyurethane foam（PUF）passive samplers were deployed and tree bark samples were collected at 15 sites across western China in 2013,and the organochlorine pesticide（OCP）concentrations in the samples were determined.Dichlorodiphenyltrichloroethane and its degradation products（collectively called DDTs）,hexachlorocyclohexanes（HCHs）,and hexachlorobenzene（HCB）were the dominant OCPs in the PUF samples and tree bark samples.The mean DDTs,HCHs and HCB concentrations were 33,22 and 18 ng/sample in the PUF samples,and 428,74,and 43 ng/（g lipid weight（lw））in the tree bark,respectively.The OCP concentrations in the air,calculated using PUF–air and tree-bark–air partitioning models,were of the same order of magnitude.Both sample types showed that relatively fresh inputs of DDT and HCHs to the environment have occurred in western China.Meanwhile,PUF passive samplers were compared with the use of tree bark samples as passive samplers.The OCP compositions in the PUF and tree bark samples were different.Only the relatively stable OCPs（such as HCB,β-HCH and p,p′-dichlorodiphenyldichloro-ethylene（DDE））were consistent in the PUF and tree bark samples.

关 键 词：Organochlorine pesticides Polyurethane foam Tree bark Passive sampler Western China 

分 类 号：X831[环境科学与工程—环境工程]