<b>Measurement of Gaseous Elemental Mercury Concentration by Passive Sampler</b>
نویسندگان
چکیده
منابع مشابه
Global concentrations of gaseous elemental mercury and reactive gaseous mercury in the marine boundary layer.
Gaseous elemental mercury (GEM) and reactive gaseous mercury (RGM) were measured during an eight month circumnavigation to obtain knowledge of their worldwide distributions in the marine boundary layer (MBL). Background GEM concentrations were found to be 1.32 ± 0.2 ng/m(3) (summer) and 2.62 ± 0.4 ng/m(3) (spring) in the northern hemisphere and 1.27 ± 0.2 ng/m(3) (spring and summer) in the sout...
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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...
متن کاملImportance 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 کاملA theoretical study of abiotic methylation reactions of gaseous elemental mercury by halogen-containing molecules.
Methylation reactions of gaseous elementary mercury by halogen containing molecules such as halogenomethane species CH(3)X (with X = Cl, Br, and I) and the dimethylchlorinium ion CH(3)ClCH(3)(+) were investigated at the density functional level. With CH(3)X, the reaction is predicted to be almost athermic and kinetically demanding for a thermal reaction. The reaction can proceed photochemically...
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ژورنال
عنوان ژورنال: Journal of Environmental Conservation Engineering
سال: 2017
ISSN: 0388-9459,1882-8590
DOI: 10.5956/jriet.46.208