Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29354
Title: Atmospheric polybrominated diphenyl ethers (PBDEs) and Pb isotopes at a remote site in Southwestern China : implications for monsoon-associated transport
Authors: Xu, Y
Zhang, G
Li, J
Liu, X
Li, X 
Keywords: Asian monsoon
Atmospheric transport
Pb isotope
PBDEs
Issue Date: 2011
Source: Science of the total environment, 2011, v. 409, no. 21, p. 4564-4571 How to cite?
Journal: Science of the Total Environment 
Abstract: A 13-month sampling campaign was conducted at a remote site in southwestern China from October, 2005 to December, 2006. An integrated approach with lead isotopes and air back trajectory analysis was used to investigate the monsoon-associated atmospheric transport of PBDEs in tropical/subtropical Asia regions. The air concentration of PBDEs ranged from 1.6 to 57.5pgm -3 (15.9±12.0pgm -3), comparable to reported levels at other remote sites in the world. BDE-209, followed by BDE-47 and -99 dominated the PBDE compositions, indicating a mixed deca- and penta-BDE source. Air mass back trajectory analysis revealed that the major potential source regions of BDE-47 and -99 could be southern China and Thailand, while those of BDE-209 are widely distributed in industrialized and urbanized areas in tropical Asia. The different lead isotope compositions of aerosols between trajectory clusters further substantiated the observation that the South Asian monsoon from spring to summer could penetrate deep into southwestern China, and facilitate long-range transport of airborne pollutants from South Asia.
URI: http://hdl.handle.net/10397/29354
ISSN: 0048-9697
DOI: 10.1016/j.scitotenv.2011.07.035
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