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利用SPMD技术监测珠江三角洲大气有机氯农药

刘国卿 张干 李军 彭先芝 祁士华

刘国卿, 张干, 李军, 彭先芝, 祁士华. 利用SPMD技术监测珠江三角洲大气有机氯农药[J]. 环境科学研究, 2004, 17(6): 1-4.
引用本文: 刘国卿, 张干, 李军, 彭先芝, 祁士华. 利用SPMD技术监测珠江三角洲大气有机氯农药[J]. 环境科学研究, 2004, 17(6): 1-4.
LIU Guo-qing, ZHANG Gan, LI Jun, PENG Xian-zhi, QI Shi-hua. Monitoring OCPs in the Air Using SPMD in the Pearl River Delta[J]. Research of Environmental Sciences, 2004, 17(6): 1-4.
Citation: LIU Guo-qing, ZHANG Gan, LI Jun, PENG Xian-zhi, QI Shi-hua. Monitoring OCPs in the Air Using SPMD in the Pearl River Delta[J]. Research of Environmental Sciences, 2004, 17(6): 1-4.

利用SPMD技术监测珠江三角洲大气有机氯农药

基金项目: 国家自然科学基金资助项目(40073028);国家重点基础研究发展计划项目(2002CB410803);广东省团队基金资助项目(2003046)

Monitoring OCPs in the Air Using SPMD in the Pearl River Delta

  • 摘要: 利用半渗透膜装置(SPMD)对珠江三角洲地区大气有机氯农药(OCPs)进行了分季度为期1年的监测分析。结果显示,该地区大气OCPs主要为DDTs,HCHs,氯丹和甲氧基氯,DDTs的含量约占总量的62%~88%。珠江三角洲地区大气有机氯农药时空分布差异明显,OCPs含量夏季高于冬季;各地区大气有机氯农药的年均含量为3 8~27 5ng d,香港和珠海较低(平均为5 0ng d),广州(GZ01)最高,年均值达27 5ng d。大气中m(DDT) m(DDD+DDE)均大于1,表明近期该地区大气中仍有新的DDT输入,对α-HCH和α-氯丹的手性特征进行了分析,它们的旋光异构体比值(年均值)(ER(+-))分别为0 75和0 69。夏季大气与土壤中α-HCH的ER(+-)相当,而冬季大气ER(+-)要低于土壤,表明夏季大气α-HCH基本来自于土壤中α-HCH的挥发,而冬季大气α-HCH可能来自土壤挥发与外来源迁移的组合。

     

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出版历程
  • 收稿日期:  2004-01-08
  • 刊出日期:  2004-12-25

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