Passive air sampling of organochlorine pesticides, polychlorinated biphenyls, and polybrominated diphenyl ethers across the tibetan plateau.

Content Provider	Semantic Scholar
Author	Wang, Xiaoping Gong, Ping Yao, Tan-Dong Jones, Kevin C.
Copyright Year	2010
Abstract	So far there are limited data on persistent organic pollutants (POPs) in the atmosphere of the Tibetan Plateau. XAD 2-resin based passive air samplers were therefore deployed for 1 year (between July 2007-June 2008) at 16 locations across the Tibetan Plateau. Based on previously reported sampling rates (R) derived in the north and south America, and their correlations with atmospheric temperature and pressure, R values in the present study were in the range of 2.2-3.3 m(3) d(-1) (average = 2.7 +/- 0.3). Derived air concentrations (pg/m(3)) ranged as follows: DDTs, 5-75; HCHs, 0.1-36; alpha-endosulfan, 0.1-10; HCB, 2.8-80; sum of 15 PCBs, 1.8-8.2; and sum of 9 PBDEs, 0.1-8.3. The highest DDTs occurred at Qamdo, where the sampling site is near to farm land, indicating the spatial distribution of DDTs across the plateau may be influenced by scattered local usage of DDT. Higher levels of HCHs were observed at sites with high elevation (>4000 m) and close to the China-India border, indicating possible long-range atmospheric transport. The highest levels of HCB, PCBs, and PBDEs were found at a site impacted by forest fire during the sampling campaign.
File Format	PDF HTM / HTML
DOI	10.1021/es9033759
PubMed reference number	20235613
Journal	Medline
Volume Number	44
Issue Number	8
Alternate Webpage(s)	http://www.itpcas.cas.cn/xwzx/tpxw/201004/W020100426528918301222.pdf
Alternate Webpage(s)	https://doi.org/10.1021/es9033759
Journal	Environmental science & technology
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article