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首页> 外文期刊>Environmental Science & Technology >Impact Assessment of Ammonia Emissions on Inorganic Aerosols in East China Using Response Surface Modeling Technique
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Impact Assessment of Ammonia Emissions on Inorganic Aerosols in East China Using Response Surface Modeling Technique

机译：应用响应面建模技术评估华东地区氨气排放对无机气溶胶的影响

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摘要

Ammonia (NH3) is one important precursor of inorganic fine particles; however, knowledge of the impacts of NH3 emissions on aerosol formation in China is very limited. In this study, we have developed China's NH3 emission inventory for 2005 and applied the Response Surface Modeling (RSM) technique upon a widely used regional air quality model, the Community Multi-Scale Air Quality Model (CMAQ). The purpose was to analyze the impacts of NH, emissions on line particles for January, April, July, and October over east China, especially those most developed regions including the North China Plain (NCP), Yangtze River delta (YRD), and the Pearl River delta (PRD). The results indicate that NH, emissions contribute to 8-11 % of PM2.S concentrations in these three regions, comparable with the contributions of SO2 (9-11%) and NO, (5-11%) emissions. However, NH,, SO2t and NO, emissions present significant nonlinear impacts; the PM2, 5 responses to their emissions increase when more control efforts are taken mainly because of the transition between NH3-rich and NH3-poor conditions. Nitrate aerosol (NO3~) concentration is more sensitive to NO, emissions in NCP and YRD because of the abundant NH3 emissions in the two regions, but it is equally or even more sensitive to NH3 emissions in the PRD. In high NO3- pollution areas such as NCP and YRD, NH, is sufficiently abundant to neutralize extra nitric acid produced by an additional 25% of NO, emissions. The 90% increase of NH3 emissions during 1990-2005 resulted in about 50-60% increases of NO3~ and SOH2- aerosol concentrations. If no control measures are taken for NH3 emissions, NO3 ~ will be further enhanced in the future. Control of NH3 emissions in winter, spring, and fall will benefit PM, 5 reduction for most regions. However, to improve regional air quality and avoid exacerbating the acidity of aerosols, a more effective pathway is to adopt a multipollutant strategy to control NH3 emissions in parallel with current SO2 and NO, controls in China.
机译：氨（NH3）是无机细颗粒的一种重要前体。但是，对于中国NH3排放对气溶胶形成的影响的了解非常有限。在这项研究中，我们开发了2005年中国的NH3排放清单，并将响应面建模（RSM）技术应用于广泛使用的区域空气质量模型，即社区多尺度空气质量模型（CMAQ）。目的是分析1月，4月，7月和10月中国东部地区NH，排放物对线颗粒的影响，特别是那些最发达的地区，包括华北平原（NCP），长江三角洲（YRD）和珠江三角洲（PRD）。结果表明，在这三个区域中，NH 2排放占PM2.S浓度的8-11％，与SO2（9-11％）和NO（5-11％）的排放相当。但是，NH，SO2t和NO的排放具有明显的非线性影响。当采取更多的控制措施时，PM2、5对排放的反应增加，这主要是由于富NH3和贫NH3条件之间的过渡。硝酸盐气溶胶（NO3〜）浓度对NCP和YRD中的NO，排放更为敏感，这是因为两个区域中大量的NH3排放，但对PRD中的NH3排放同样甚至更为敏感。在NCP和YRD等高NO3污染地区，NH足够丰富，可以中和25％NO排放所产生的额外硝酸。在1990-2005年期间，NH3排放量增加了90％，导致NO3〜和SOH2-气溶胶浓度增加了约50-60％。如果不采取任何控制措施来排放NH3，则将来NO3〜将进一步提高。在冬季，春季和秋季控制NH3排放将使PM受益，在大多数地区减少5％。但是，为了改善区域空气质量并避免加剧气溶胶的酸度，更有效的途径是采用多污染物策略，与中国目前的SO2和NO控制并行，控制NH3排放。

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  • 来源
    《Environmental Science & Technology》 |2011年第21期|p.9293-9300|共8页
  • 作者

    Shuxiao Wang; Jia Xing; Carey Jang; Yun Zhu; Joshua S. Fu; Jiming Hao;

  • 作者单位

    School of Environment, and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University,Beijing 100084, P. R. China;

    School of Environment, and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University,Beijing 100084, P. R. China;

    U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States;

    School of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, P. R. China;

    Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States;

    School of Environment, and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University,Beijing 100084, P. R. China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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