...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Impacts of Future European Emission Reductions on Aerosol Particle Number Concentrations Accounting for Effects of Ammonia, Amines, and Organic Species
【24h】

Impacts of Future European Emission Reductions on Aerosol Particle Number Concentrations Accounting for Effects of Ammonia, Amines, and Organic Species

机译：未来欧洲排放减少对气溶胶粒子数浓度的影响核算氨，胺和有机物种影响的核算

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Although they are currently unregulated, atmospheric ultrafine particles (100 nm) pose health risks because of, e.g., their capability to penetrate deep into the respiratory system. Ultrafine particles, often minor contributors to atmospheric particulate mass, typically dominate aerosol particle number concentrations. We simulated the response of particle number concentrations over Europe to recent estimates of future emission reductions of aerosol particles and their precursors. We used the chemical transport model PMCAMx-UF, with novel updates including state-of-the-art descriptions of ammonia and dimethylamine new particle formation (NPF) pathways and the condensation of organic compounds onto particles. These processes had notable impacts on atmospheric particle number concentrations. All three emission scenarios (current legislation, optimized emissions, and maximum technically feasible reductions) resulted in substantial (10-50%) decreases in median particle number concentrations over Europe. Consistent reductions were predicted in Central Europe, while Northern Europe exhibited smaller reductions or even increased concentrations. Motivated by the improved NPF descriptions for ammonia and methylamines, we placed special focus on the potential to improve air quality by reducing agricultural emissions,, which are a major source of these species. Agricultural emission controls showed promise in reducing ultrafine particle number concentrations, although the change is nonlinear with particle size.
机译：虽然它们目前是不受调节的，但由于例如它们渗透到呼吸系统深入的能力，虽然过大气超细颗粒（<100nm）姿态健康风险。超细颗粒，通常是大气颗粒物质的贡献者，通常是固定气溶胶颗粒数浓度。我们模拟了粒度浓度在欧洲的响应，以近期对气溶胶颗粒的未来减排及其前体的估计。我们使用了化学传输模型PMCAMX-UF，具有新的更新，包括氨和二甲胺新颗粒形成（NPF）途径和有机化合物在颗粒上的缩合的最新的描述。这些过程对大气粒子数浓度有显着影响。所有三种发射情景（现行立法，优化排放和最大技术上可行的减少）导致欧洲中位数粒子数量浓度的大量（10-50％）降低。中欧预测的始终如一，欧洲北欧表现出较小的减少甚至增加浓度。通过改善氨和甲胺的NPF描述，我们专注于通过减少农业排放来改善空气质量的潜力，这是这些物种的主要来源。农业排放控制表明，在减少超细粒子数浓度的情况下，尽管变化是非线性的，但具有粒径。

著录项

  • 来源
    《Environmental Science & Technology》 |2018年第2期|692-700|共9页
  • 作者

    Julin Jan; Murphy Benjamin N.; Patoulias David; Fountoukis Christos; Olenius Tinja; Pandis Spyros N.; Riipinen Ilona;

  • 作者单位

    Stockholm Univ Dept Environm Sci & Analyt Chem ACES SE-10691 Stockholm Sweden|Stockholm Univ Bolin Ctr Climate Res SE-10691 Stockholm Sweden|Univ Eastern Finland Dept Appl Phys FI-70211 Kuopio Finland;

    US EPA Natl Exposure Res Lab Res Triangle Pk NC 27709 USA;

    Univ Patras Dept Chem Engn GR-26504 Patras Greece;

    Hamad Bin Khalifa Univ Qatar Fdn Qatar Environm & Energy Res Inst POB 5825 Doha Qatar;

    Stockholm Univ Dept Environm Sci & Analyt Chem ACES SE-10691 Stockholm Sweden|Stockholm Univ Bolin Ctr Climate Res SE-10691 Stockholm Sweden;

    Carnegie Mellon Univ Dept Chem Engn Pittsburgh PA 15213 USA|Fdn Res & Technol Inst Chem Engn Sci GR-26504 Patras Greece;

    Stockholm Univ Dept Environm Sci & Analyt Chem ACES SE-10691 Stockholm Sweden|Stockholm Univ Bolin Ctr Climate Res SE-10691 Stockholm Sweden;

  • 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号