Observation and analysis of speciated atmospheric mercury in Shangri-La, Tibetan Plateau, China

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	Observation and analysis of speciated atmospheric mercury in Shangri-La, Tibetan Plateau, China
	H. Zhang; X. W. Fu; C.-J. Lin; X. Wang; X. B. Feng
刊名	Atmospheric Chemistry and Physics
	2015
卷号	15 期号:2 页码:653-665
英文摘要	This study reports the concentrations and potential sources of speciated atmospheric mercury at the Shangri-La Atmosphere Watch Regional Station (SAWRS), a pristine high-altitude site (3580ma.s.l.) in Tibetan Plateau, China. Total gaseous mercury (TGM, defined as the sum of gaseous elemental mercury, GEM, and gaseous oxidized mercury, GOM), GOM and particulate-bound mercury (PBM) were monitored from November 2009 to November 2010 to investigate the characteristics and potential influence of the Indian summer monsoon (ISM) and the Westerlies on atmospheric transport of mercury. The mean concentrations (+/- standard deviation) of TGM, PBM and GOM were 2.55 +/- 0.73 ngm(-3), 38.82 +/- 31.26 pgm(-3) and 8.22 +/- 7.90 pgm(-3), respectively. A notable seasonal pattern of TGM concentrations was observed with higher concentrations at the beginning and the end of the ISM season. High TGM concentrations (> 2.5 ngm(-3)/were associated with the transport of dry air that carried regional anthropogenic emissions from both Chinese domestic and foreign (e. g., Myanmar, Bay of Bengal, and northern India) sources based on analysis of HYSPLIT4 back trajectories. Somewhat lower PBM and GOM levels during the ISM period were attributed to the enhanced wet scavenging. The high GOM and PBM were likely caused by local photo-chemical transformation under low RH and the domestic biofuel burning in cold seasons.
学科主题	环境地球化学
语种	英语
公开日期	2017-05-15
内容类型	期刊论文
源URL	[http://ir.gyig.ac.cn:8080/handle/352002/6006]
专题	地球化学研究所_环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
推荐引用方式 GB/T 7714	H. Zhang,X. W. Fu,C.-J. Lin,et al. Observation and analysis of speciated atmospheric mercury in Shangri-La, Tibetan Plateau, China[J]. Atmospheric Chemistry and Physics,2015,15(2):653-665.
APA	H. Zhang,X. W. Fu,C.-J. Lin,X. Wang,&X. B. Feng.(2015).Observation and analysis of speciated atmospheric mercury in Shangri-La, Tibetan Plateau, China.Atmospheric Chemistry and Physics,15(2),653-665.
MLA	H. Zhang,et al."Observation and analysis of speciated atmospheric mercury in Shangri-La, Tibetan Plateau, China".Atmospheric Chemistry and Physics 15.2(2015):653-665.