Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Geoscience》 2010-02
Add to Favorite Get Latest Update

Pollution Level and Source Analysis of Polybrominated Diphenyl Ethers(PBDEs)from Atmospheric Matter PM_(2.5) in Beijing

YANG Xue,LIU Da-meng,SUN Jun-ling(School of Energy Resources,China University of Geosciences,Beijing 100083,China)  
In January,September and October,2008,9 PM2.5 samples were collected concurrently at 5 contrasting sites.The mass concentrations of 14 Polybrominated Diphenyl Ethers(PBDEs) congeners were detected with isotope dilution and high resolution gas chromatography/high resolution mass spectrometry(HRGS/HRMS) based on US EPA-1614 method.The pollution level,spatial distribution and source of 14 PBDEs atmospheric matter PM2.5 in Beijing were analyzed.The results show that the mass concentrations of PBDEs are in the range of 2.82~57.94 pg/m3 with mean value of 15.67 pg/m3,and the mass concentration of BDE-209 is in the range of 0.34~7.32 pg/m3.The mass concentration of PBDEs in PM2.5 in winter is higher than that in autumn.Monomer distribution of PBDEs in PM2.5 samples is different,and the mass concentrations of penta-BDE and hexa-BDE are higher than those of tetra-BDE and tri-BDE.The PBDEs pollution are generally from traffic,industrial fuel and fire retardant,the contribution to PBDEs pollution is fire retardant,industrial fuel and traffic in descending order.
【Fund】: 国家自然科学基金项目(40475049 20777079 20607025);; 北京市自然科学基金项目(032012)
【CateGory Index】: X513
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved