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北京城区大气中有机溴污染物的分析
引用本文:田青,徐殿斗,柴之芳,鲁毅强,熊幼幼. 北京城区大气中有机溴污染物的分析[J]. 核化学与放射化学, 2005, 27(4): 236-238,252
作者姓名:田青  徐殿斗  柴之芳  鲁毅强  熊幼幼
作者单位:0253-9950(2005)04-0236-03
基金项目:国家自然科学基金资助项目(10490180,10505023);中国科学院重要方向性基金资助项目(KJCX-N01);中国科学院核分析室基金项目(K117)
摘    要:利用仪器中子活化(INAA)法分析了2004年4月至12月间北京城区大气中气态与总悬浮颗粒物(TSP)样品中可萃取有机溴污染物(EOBr)和持久性可萃取有机溴污染物(EPOBr)的浓度。结果表明,采样期间城区大气中气态EOBr平均浓度为6.2ng/m^3(1.0~18.5ng/m^3),EPOBr平均浓度为0.95ng/m^3(0.02~2.2ng/m^3);TSP中EOBr和EPOBr的平均浓度分别为18.3ng/m^3(2.3~73.4ng/m^3)和1.0ng/m^3(0.09~3.0ng/m^3);气态和TSP中EPOBr分别占EOBr的15.3%(1.9%~62.8%)和5.5%(0.8%~55.6%)。可见大气中的有机溴污染物绝大多数为酸溶或酸不稳定的化合物。

关 键 词:仪器中子活化分析(INAA)  可萃取有机溴污染物(EOBr)  总悬浮颗粒物(TSP)   
文章编号:0253-9950(2005)04-0236-03
收稿时间:2005-04-21
修稿时间:2005-04-212005-07-07

Analysis on the Organic Bromine in the Atmosphere in Beijing
TIAN Qing,XU Dian-dou,CHAI Zhi-fang,LU Yi-qiang,XIONG You-you. Analysis on the Organic Bromine in the Atmosphere in Beijing[J]. Journal of Nuclear and Radiochemistry, 2005, 27(4): 236-238,252
Authors:TIAN Qing  XU Dian-dou  CHAI Zhi-fang  LU Yi-qiang  XIONG You-you
Affiliation:TIAN Qing~(1,2),XU Dian-dou~2,CHAI Zhi-fang~2,LU Yi-qiang~1,XIONG You-you~1 1.School of Applied Science,University of science and technology Beijing,Beijing,100083,China;2.Laboratory of Nuclear Analytical Technique,Institute of High Energy Physics,the Chinese Academy Science,Beijing 100049,China
Abstract:Gaseous and particulate phase samples are simultaneously collected at a downtown site in Beijing from April 2004 to December 2004 using a modified high-volume air sampler and determined by in strumental neutron activation analysis(INAA) for the concentrations of extractable organic-bromine(EOBr) and extractable persistent organic-bromine(EPOBr).Results show that the average concentrations of EOBr are 6.2 ng/m~3(1.0~18.5 ng/m~3) and 18.3 ng/m~3(2.3~73.4 ng/m~3) in gaseous and particulate phase,respectively;the average concentrations of EPOBr are 0.95 ng/m~3(0.02~2.2 ng/m~3) and 1.0 ng/m~3(0.09~3.0 ng/m~3) in gaseous and particulate phase;EPOBr accounts for(15.3%)(1.9%~62.8%)in gaseous phase and 5.5%(0.8%~55.6%) in TSP of total EOBr.
Keywords:instrumental neutron activation analysis(INAA)  extractable organic bromine(EOBr)  TSP  
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