...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Regional Air Quality: Local and Interstate Impacts of NO_x and SO_2 Emissions on Ozone and Fine Particulate Matter in the Eastern United States
【24h】

Regional Air Quality: Local and Interstate Impacts of NO_x and SO_2 Emissions on Ozone and Fine Particulate Matter in the Eastern United States

机译：区域空气质量：美国东部地区NO_x和SO_2排放对臭氧和细颗粒物的局部和州际影响

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

While the U.S. air quality management system is largely designed and managed on a state level, many critical air quality problems are now recognized as regional. In particular, concentrations of two secondary pollutants, ozone and particulate matter, are often above regulated levels and can be dependent on emissions from upwind states. Here, impacts of statewide emissions on concentrations of local and downwind states' ozone and fine particulate matter are simulated for three seasonal periods in the eastern United States using a regional Eulerian photochemical model. Impacts of ground level NO_x (e.g., mobile and area sources), elevated NO_x(e.g., power plants and large industrial sources), and SO_2 emissions are examined. An average of 77% of each state's ozone and PM_(2.5) concentrations that are sensitive to the emissions evaluated here are found to be caused by emissions from other states. Delaware, Maryland, New Jersey, Virginia, Kentucky, and West Virginia are shown to have high concentrations of ozone and PM_(2.5) caused by interstate emissions. When weighted by population, New York receives increased interstate contributions to these pollutants and contributions to ozone from local emissions are generally higher. When accounting for emission rates, combined states from the western side of the modeling domain and individual states such as Illinois, Tennessee, Indiana, Kentucky, and Georgia are major contributors to interstate ozone. Ohio, Indiana, Tennessee, Kentucky, and Illinois are the major contributors to interstate PM_(2.5). When accounting for an equivalent mass of emissions, Tennessee, Kentucky, West Virginia, Virginia, and Alabama contribute large fractions of these pollutants to other states.
机译：尽管美国的空气质量管理体系主要是在州一级设计和管理的，但许多关键的空气质量问题现在已被认为是地区性的。特别是，臭氧和颗粒物这两种次要污染物的浓度通常高于规定水平，并且可能取决于上风州的排放。在这里，使用区域欧拉光化学模型模拟了美国东部三个季节期间全州排放对局部和顺风州臭氧和细颗粒物浓度的影响。研究了地面NO_x（例如移动和区域源），NO_x升高（例如发电厂和大型工业源）以及SO_2排放的影响。发现对此处评估的排放敏感的每个州平均77％的臭氧和PM_（2.5）浓度是由其他州的排放引起的。特拉华州，马里兰州，新泽西州，弗吉尼亚州，肯塔基州和西弗吉尼亚州显示出州际排放引起的高浓度臭氧和PM_（2.5）。当按人口加权时，纽约州对这些污染物的州际贡献增加，而本地排放对臭氧的贡献通常更高。在考虑排放率时，来自建模域西侧的状态与诸如伊利诺伊州，田纳西州，印第安纳州，肯塔基州和乔治亚州的各个州的合并状态是州际臭氧的主要贡献者。俄亥俄州，印第安纳州，田纳西州，肯塔基州和伊利诺伊州是州际PM_（2.5）的主要贡献者。当考虑排放量时，田纳西州，肯塔基州，西弗吉尼亚州，弗吉尼亚州和阿拉巴马州将这些污染物的很大一部分贡献给其他州。

著录项

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