生态与农村环境学报 ›› 2012, Vol. 28 ›› Issue (5): 550-553.doi:

• 污染控制与修复 • 上一篇    下一篇

典型电子废物集中处置场地及周边土壤中多溴联苯的污染特征

牟义军, 周纯, 陈涛, 余彬彬, 尹晓辉   

  1. 台州市环境监测中心站
  • 收稿日期:2012-02-22 修回日期:2012-08-16 出版日期:2012-09-25 发布日期:2012-10-08
  • 通讯作者: 周纯 台州市环境监测中心站 E-mail:zhouchunjoy@163.com
  • 作者简介:牟义军(1957—),男,浙江台州人,高级工程师,主要从事环境监测管理方面的研究。E-mail:Myj11171@163.com
  • 基金资助:

    国家自然科学基金(21007060);浙江省环保科研项目(200937)

Characteristics of Polybrominate Biphenyls Pollution of a Typical E-Waste Disposal Site and Soils in Its Surroundings

MOU  Yi-Jun, ZHOU  Chun, CHEN  Tao, YU  Bin-Bin, YIN  Xiao-Hui   

  1. Taizhou Environmental Monitoring Center Station
  • Received:2012-02-22 Revised:2012-08-16 Online:2012-09-25 Published:2012-10-08
  • Contact: ZHOU Chun Taizhou Environmental Monitoring Center Station E-mail:zhouchunjoy@163.com

摘要: 采用快速溶剂萃取-凝胶净化-气相色谱质谱法(GC-MS)测定了浙江省台州市某典型电子废物集中处置场地及周边土壤中多溴联苯(polybrominate biphenyls,PBBs)浓度,研究了10种PBBs(PBB-3、PBB-15、PBB-18、PBB-52、PBB-101、PBB-153、PBB-180、PBB-194、PBB-206和PBB-209)的浓度水平、组成特征和垂直分布规律。结果表明,处置场地及周边临近区域的PBBs污染程度相近,10种PBBs 含量平均值分别为2.81×10-3和2.50×10-3  mg·kg-1,污染程度较轻,主要污染物为使用相对较多的PBB-153、PBB-194、PBB-206和PBB-209。PBBs总量的垂直分布规律表现为在>40~60、0~20、>20~40和>60~80 cm土层含量依次降低。PBB-209在10种PBBs中所占比例最高,在进行类似区域的PBBs监测时,可主要监测PBB-209含量,并用PBB-209含量乘以经验系数1.78来初步判断PBBs的污染状况。

关键词: 电子废物处置, 土壤, 多溴联苯, 污染特征

Abstract: Concentrations and distribution of 10 PBBs (polybrominate biphenyls, i.e. PBB-3, PBB-15, PBB-18, PBB-52, PBB-101, PBB-153, PBB-180, PBB-194, PBB-206 and PBB-209) in the soils at a typical e-waste disposal site and its surroundings were analyzed sequentially using the method of accelerated solvent extraction (ASE), gel permeation chromatography (GPC) and gas chromatography-mass spectrography (GC-MS).Results show that e-wastes caused PBB pollution, similar in extent, to the site and the surrounding area, with total PBB content in the soil averaging 2.81×10-3 and 2.50×10-3  mg•kg-1, respectively, reflecting a lower pollution level   Of the ten PBBs, PBB-153, PBB-194, PBB-206 and  PBB-209 were the main pollutants because they arehave been commonly used. The distribution of total PBBs along the soil profile showed a decreasing order of 40-60, > 0-20 ,> 20-40 > 60-80 cm. PBB-209 was the major one, being the highest in proportion. So that, in monitoring PBBs pollution in similar regions, it is advisable to determine the content of PBB-209 alone and then multiply the result by empirical coefficient 1.78. Such method is adequate for reflecting the PBBs pollution of the regions.

Key words: electronic waste disposal, soil, polybrominate biphenyls(PBBs), pollution characteristic

中图分类号: