Atmosphere-terrestrial exchange of gaseous elemental mercury: parameterization improvement through direct comparison with measured ecosystem fluxes
نویسندگان
چکیده
منابع مشابه
Importance of Gaseous Elemental Mercury Fluxes in Western Maryland
The purpose of this study was to increase our understanding of the gaseous elemental mercury (GEM, Hg◦) fluxes between the atmosphere and soils. Moreover, we wanted to quantify the annual GEM flux, identify the controls, and compare the GEM flux to annual rates of gaseous oxidized mercury (GOM) dry deposition and wet deposition of total mercury. We measured GEM fluxes using the modified Bowen r...
متن کاملExchange of Mercury between the Atmosphere and Terrestrial Ecosystems
Once elemental mercury (Hg) enters the atmosphere, it may be globally distributed because of the fact that this form is relatively inert and recycled between terrestrial and aquatic surfaces. Terrestrial ecosystems may be sources, as well as shortand long-term sinks, for atmospheric Hg. Understanding whether an ecosystem is a source or sink and the magnitude of associated flux is critical for d...
متن کاملGaseous elemental mercury concentration in atmosphere at urban and remote sites in China.
An investigation of gaseous elemental mercury concentration in atmosphere was conducted at Beijing and Guangzhou urban, Yangtze Delta regional sites and China Global Atmosphere Watch Baseline Observatory (CGAWBO) in Mt. Waliguan of remote continental area of China. High temporal resolved data were obtained using automated mercury analyzer RA-915+. Results showed that the overall hourly mean Hg0...
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ژورنال
عنوان ژورنال: Environmental Science: Processes & Impacts
سال: 2019
ISSN: 2050-7887,2050-7895
DOI: 10.1039/c9em00341j