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Seasonal Changes in Gaseous Elemental Mercury in Relation to Monsoon Cycling Over the Northern South China Sea : Volume 12, Issue 5 (11/05/2012)

By Tseng, C. M.

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Book Id: WPLBN0003996087
Format Type: PDF Article :
File Size: Pages 25
Reproduction Date: 2015

Title: Seasonal Changes in Gaseous Elemental Mercury in Relation to Monsoon Cycling Over the Northern South China Sea : Volume 12, Issue 5 (11/05/2012)  
Author: Tseng, C. M.
Volume: Vol. 12, Issue 5
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Lamborg, C., Liu, C. S., & Tseng, C. M. (2012). Seasonal Changes in Gaseous Elemental Mercury in Relation to Monsoon Cycling Over the Northern South China Sea : Volume 12, Issue 5 (11/05/2012). Retrieved from

Description: Inst. of Oceanography, National Taiwan University, P.O. Box 23-13, Taipei 106, Taiwan. The distribution of gaseous elemental mercury (GEM) was determined in the surface atmosphere of the Northern South China Sea (SCS) during 12 SEATS cruises between May 2003 and December 2005. The sampling and analysis of GEM were performed on board ship by using an on-line mercury analyzer (GEMA). Distinct annual patterns were observed for the GEM with a winter maximum of 5.7 ± 0.2 ng m−3 (n = 3) and low in summer (2.8 ± 0.2) (n = 3), with concentrations elevated 2 ∼ 3 times global background values. Source tracking through backward trajectory analysis demonstrated air masses during the northeast monsoon in winter came from Eurasia, bringing continental- and industrial-derived GEM to the SCS. In contrast, during summer southwest monsoon and inter-monsoon, air masses were from the Indochina peninsula and Indian Ocean and West Pacific Ocean. This demonstrates the impact that long-range transport, as controlled by seasonal monsoons, has on the Hg atmospheric distribution and cycling in the SCS.

Seasonal changes in gaseous elemental mercury in relation to monsoon cycling over the Northern South China Sea

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