| 中国区大气汞污染模型模拟初探 |
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| 引用本文： | 王亚杰,朱 云,王 龙.中国区大气汞污染模型模拟初探[J].环境科学研究,2010,23(10):1250-1256. |
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| 作者姓名： | 王亚杰 朱 云 王 龙 |
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| 作者单位： | 1.华南理工大学环境科学与工程学院, 广东 广州 510006 |
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| 基金项目： | 广东省普通高等学校重点实验室污染控制与生态修复重点实验室开放基金项目，美国环境保护署项目，教育部青年骨干教师国内访问学者计划项目 |
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| 摘 要： | 介绍并利用Community Multiscale Air Quality-Hg (CMAQ-Hg)多尺度大气汞污染模型，模拟研究了2005年6月24日—7月31日我国大气汞污染状况. 初步模拟结果表明:人为排放源高的地区(如有汞矿群分布、煤炭和火力发电厂及金属冶炼厂)的大气中ρ(汞)较高，大气中元素态汞(GEM)的月均ρ(汞)高于反应性气态汞(RGM)和颗粒汞(PHG)，初步反映了我国大气汞污染的分布以及不同形态汞的浓度分布受汞排放源种类及其物理化学特性的影响特征. 在解决汞排放源清单不确定性较大的问题及将模型运行参数本地化后，CMAQ-Hg有望成为研究我国汞污染特点及其长程输送的有力工具.
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| 关 键 词： | 大气汞 汞沉降 CMAQ-Hg 汞排放清单 |
| 收稿时间： | 2009/12/14 0:00:00 |
| 修稿时间： | 2010/6/10 0:00:00 |
Preliminary Study of Atmospheric Mercury Pollution Model Simulation in China |
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| WANG Ya-jie,ZHU Yun and WANG Long.Preliminary Study of Atmospheric Mercury Pollution Model Simulation in China[J].Research of Environmental Sciences,2010,23(10):1250-1256. |
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| Authors: | WANG Ya-jie ZHU Yun and WANG Long |
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| Institution: | 1.College of Environmental Science & Engineering, South China University of Technology, Guangzhou 510006, China2.College of Environmental Science & Engineering, South China University of Technology, Guangzhou 510006, China;Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China3.Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | The mercury model of the Community Multi-scale Air Quality modeling system (CMAQ-Hg) is introduced and applied to gain initial insights into atmospheric mercury concentrations in China. The modeling period is from June 24th to July 31st, 2005. The simulation results show that higher mercury concentrations appear in areas near large anthropogenic emission sources, such as mercury mining areas and locations of coal-fired power plants and metal smelters. The simulated monthly average gaseous elemental mercury (GEM) concentration is higher than that of reactive gaseous mercury (RGM) and particulate mercury (PHG). The above results demonstrate the model infrastructure of using CMAQ-Hg to simulate atmospheric mercury in China, and the concentration distributions of GEM, RGM and PHG caused by their emission and physical and chemical processes in the atmosphere. With updated mercury emission inventory data and customizing the model''s operating parameters, CMAQ-Hg shows promise as a powerful tool for assessing atmospheric mercury pollution and its long-range transport in China. |
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| Keywords: | CMAQ-Hg |
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