Abstract
The source-attribution of atmospheric mercury is one of the important issues for public health today. This paper discussed the assessment of chemical reaction and deposition of mercury in the atmosphere. The air quality model from the chemical reaction and atmospheric diffusion aspects simulated the mercury in the ecosystem. The deposition processes of mercury were divided into the near field and far field in the atmosphere. Two air quality models, ISTST and CAMx used for the simulation of mercury transport were introduced in this study. Details on the atmospheric diffusion and the gas-phase and aqueous-phase mercury chemistry mechanisms implemented in the model were presents in this paper. The uncertainty of simulation models such as the elemental mercury, aerosol mercury, oxidized mercury, dry deposition, and wet deposition was discussed. The results of this study will aid in the implementation of mercury transport model in the regional model.
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