Influence of atmospheric circulation on the long-range transport of organochlorine pesticides to the western Tibetan Plateau

Atmospheric circulation now is considered key to understanding global dispersion of organochlorine pesticides (OCPs). Many studies reported that the Indian monsoon and westerly wind played important roles on the transport of OCPs to the Tibetan Plateau. Previously, few observation campaigns have foc...

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Bibliographic Details
Published in:Atmospheric research 2015-12, Vol.166, p.157-164
Main Authors: Gong, Ping, Wang, Xiao-ping, Xue, Yong-gang, Sheng, Jiu-jiang, Gao, Shao-peng, Tian, Li-de, Yao, Tan-dong
Format: Article
Language:English
Subjects:
Backward air mass trajectory
Ngari region
Persistent organic pollutants (POPs)
Seasonal variation
Westerly wind and Indian monsoon transition region
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Summary:Atmospheric circulation now is considered key to understanding global dispersion of organochlorine pesticides (OCPs). Many studies reported that the Indian monsoon and westerly wind played important roles on the transport of OCPs to the Tibetan Plateau. Previously, few observation campaigns have focused on the joint effect of Indian monsoon and westerly wind on long-range atmospheric transport of OCPs in a transition area of the Tibetan Plateau. In this study, air samples were collected for 7months in the Ngari region, a westerly wind and Indian monsoon transition area in the western Tibetan Plateau. Westerly wind controls the climate of this transition area from March to May, and the levels of DDTs, HCHs, and endosulfans in the Ngari region were
ISSN:0169-8095
1873-2895
DOI:10.1016/j.atmosres.2015.07.006