Recent studies have shown that natural geologic sources currently contribute 10% of the annual mercury emissions to the atmosphere, re-emissions of previously released contribute 60%, and the remainder comes from anthropogenic sources. However, emissions from natural sources have not yet been sufficiently examined. The anthropogenic emissions to the atmosphere of 1960 t/year have been estimated with reasonable accuracy. Atmospheric sources of mercury include anthropogenic activities and natural processes. Gaseous Elemental Mercury (GEM) is the main form of long-distance transport through the atmosphere due to its high proportion levels in the atmosphere, low dry deposition rate, water solubility, has a relatively long residence time of 0.5 to 1.5 years, and inert chemical reactions. The physical and chemical properties of mercury are unique. Mercury (Hg) is considered to be a very toxic global pollutant. The mercury release fluxes in each site within the ecotone were related to the solar radiation and soil temperature values, and the effects of them on the soil mercury release were independent from one another. Furthermore, the surface soil has a clear mercury release process, and the mercury release were higher in the sheep grass field than the maize field during the same season. The average mercury concentrations in the surface soil were also higher in summer than in autumn. The results showed that the TGM concentrations in two sample plots in the study area were basically the same during the summer and autumn months, but were higher in summer than in autumn, and there was a clear diurnal pattern. This study investigated the atmospheric mercury (Total Gaseous Mercury (TGM)) concentrations, surface soil mercury concentrations, the gaseous elemental mercury exchange fluxes, and related environmental factors. mays covered fields (Z) in the Waizi area of Changling County, with western Jilin Province as the study area. chinensis covered grassland (L), and the Z. In order to understand the characteristics and influencing factors of surface release fluxes in the typical agro-pastoral mosaic region of the Songnen grasslands of northern China, this study selected two sample plots to, respectively, represent the L.
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