Articles | Volume 18, issue 1
https://doi.org/10.5194/acp-18-495-2018
https://doi.org/10.5194/acp-18-495-2018
Research article
 | 
17 Jan 2018
Research article |  | 17 Jan 2018

Gaseous elemental mercury (GEM) fluxes over canopy of two typical subtropical forests in south China

Qian Yu, Yao Luo, Shuxiao Wang, Zhiqi Wang, Jiming Hao, and Lei Duan

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Latest update: 15 Apr 2024
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Short summary
This study provides high-quality direct observation data of a clean and a contaminated site in subtropical south China and quantifies the natural forest Hg emission. We find that clean and contaminated forests present a net GEM source with annual average values of 6.67 and 0.30 ng m-2 h-1, respectively; daily variations of GEM fluxes showed a source in the daytime with a peak at 13:00, and as a sink or balance at night; and higher atmospheric GEM concentration restricted the forest GEM emission.
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