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上海农村及郊区土壤中PCBs污染特征及来源研究

Keywords: 土壤,PCBs,污染特征,来源

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Abstract:

2007年3月采集上海市农村及郊区36个表层土壤样品,采用气相色谱法对土壤中的多氯联苯(PCBs)残留进行了分析,揭示了土壤中PCBs的残留水平、分布、组成特征及来源。结果表明,试区土壤中共检出62种PCB,总浓度最高2530ng·kg-1,最低71.7ng·kg-1,平均含量534ng·kg-1。较高污染浓度主要是编号为BS2、SJ6、JS4和FX4的土壤样品,但从整体采样区域来看,其污染可能主要来源于城区污染导致的区域大气沉降或是全球大气传输所致。上海农村及郊区土壤PCBs污染物以Tri-CBs和Tetra-CBs为主,主要以工业Aroclor1242来源为主。相关性分析显示,土壤中PCBs与TOC具有显著相关性,尤其是对于挥发性较强的低氯代PCBs,表明TOC是影响上海市土壤中PCBs持留的重要因素之一。聚类分析显示,部分采样点PCBs污染与工业品使用有关,但可能还存在其他来源。

References

[1]  Tyler C R,Jobling S,Sumpter J P,Endocrine disruption in wildlife:A critical review of the evidence,Critical Reviews in Toxicology,1998.
[2]  Vallack H W,Bakker D J,Brandt I,Controlling persistent organic pollutants-what next,Environ Toxicol Pharma,1998.
[3]  National Toxicology Program(NTP),Report on Carcinogens,eleventh ed.Public Health Service,US Department of Health and Human Services,Washington,DC,2005.
[4]  Fu C T,Wu S C,Seasonal variation of the distribution of PCBs in sediments and biota in a PCB-contaminated estuary,CHEMOSPHERE,2006.
[5]  Jamshidi A,Hunter S,Hazrati S,Concentrations and chiral signatures of polychlorinated biphenyls in outdoor and indoor air and soil in a major UK conurbation,Environmental Science and Technology,2007.
[6]  Nakata H,Hirakawa Y,Kawazoe M,Concentration and compositions of organochlorine contaminants in sediments,soils,crustaceans,fishes and birds collected from Lake Tai,Hangzhou Bay and Shanghai city region,China,Environmental Pollution,2005.
[7]  Ren N Q,Que M X,Li Y F,Polychlorinated biphenyls in Chinese surface soils,Environmental Science and Technology,2007(11).
[8]  Salihoglu G,Tasdemir Y,Prediction of the PCB pollution in the soils of Bursa,an industrial city in Turkey,Journal of Hazardous Materials,2009(2-3).
[9]  黎伟,程金平,马静,上海市某工业区可吸入颗粒物(PM10)中多氯联苯的表征与分布特征,环境化学,2007(3).
[10]  孙振中,戚隽渊,曾智超,长江口九段沙水域环境及生物体内多氯联苯分布,环境科学研究,2008(3).
[11]  申荣艳,骆永明,章钢娅,长江三角洲地区城市污泥中多氯联苯和有机氯农药含量与组分研究,土壤,2006(5).
[12]  Jiang Y F,Wang X T,Jia Y,Occurrence,distribution and possible sources of organochlorine pesticides in agricultural soil of Shanghai,China,Journal of Hazardous Materials,2009(2-3).
[13]  Fu S,Yang Z Z,Li K,Polychlorinated biphenyl residues in sandstorm depositions in Beijing,China,CHEMOSPHERE,2008.
[14]  Ishikawa Y,Noma Y,Mori Y,Congener profiles of PCB and a proposed new set of indicator congeners,CHEMOSPHERE,2007.
[15]  Manzano M A,Catalyzed hydrogen peroxide treatment of polychlorinated biphenyl contaminated sandy soils,Water Air and Soil Pollutant,2004.
[16]  Meijer S N,Ockenden W A,Sweetman A,Global distribution and budget of PCBs and HCB in background surface soils:Implications for sources and environmental processes,Environmental Science and Technology,2003.

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