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Gaseous Elemental and Reactive Mercury in Southern New Hampshire : Volume 9, Issue 6 (19/03/2009)

By Sigler, J. M.

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Book Id: WPLBN0003990386
Format Type: PDF Article :
File Size: Pages 14
Reproduction Date: 2015

Title: Gaseous Elemental and Reactive Mercury in Southern New Hampshire : Volume 9, Issue 6 (19/03/2009)  
Author: Sigler, J. M.
Volume: Vol. 9, Issue 6
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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Talbot, R., Sigler, J. M., & Mao, H. (2009). Gaseous Elemental and Reactive Mercury in Southern New Hampshire : Volume 9, Issue 6 (19/03/2009). Retrieved from

Description: Institute for the Study of Earth, Oceans and Space, Climate Change Research Center, University of New Hampshire, Durham, New Hampshire 03824, UK. We conducted measurements of Hg0 and RGM at two inland sites, Thompson Farm (TF) and Pac Monadnock (PM), and a marine site (Appledore Island (AI)) from the UNH AIRMAP observing network in New Hampshire in 2007. Measurements of other important trace gases and meteorological variables were used to help understand influences on the atmospheric Hg budget in New England. Seasonal variation in both species observed at TF and PM is attributable to such factors as seasonal variation in deposition strength, meteorological conditions and biogenic emissions. Hg0 and RGM varied diurnally at TF, particularly in spring, following the trend in air temperature and jNO2 and suggesting photochemical production of RGM. The diurnal patterns of Hg0 and RGM at AI during summer were nearly opposite in phase, with Hg0 decreasing through late afternoon, suggesting more significant photochemical oxidation of Hg0 to RGM in the marine environment, likely due to the presence of marine halogen compounds. A significant relationship of RGM with SO2 at TF suggests a strong contribution of RGM from anthropogenic sources. Significant levels of halogen compounds measured at TF in previous studies, as well as similar Hg0 levels and Hg0-CO ratios at TF and AI may suggest that similar air masses are prevalent at these sites.

Gaseous elemental and reactive mercury in Southern New Hampshire

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