Sather Mark E, Cavender Kevin
Air Quality Analysis Section, U.S. EPA Region 6, 1445 Ross Avenue, Dallas, TX 75202, USA.
J Environ Monit. 2012 Feb;14(2):666-76. doi: 10.1039/c2em10862c. Epub 2012 Jan 6.
In the South Central U.S., lower tropospheric ozone pollution continues to be a challenging problem. This paper provides an update on long-term trends analyses of the ambient ozone and precursor monitoring data collected over the past 25 years (1986-2010) in four South Central U.S. cities, following up on a previous published review of 20 year trends (M.E. Sather and K. Cavender, J. Environ. Monit., 2007, 9, 143-150). The results of these analyses should be useful to air quality scientists, managers, planners, and modelers in assessing the effectiveness of nitrogen oxides (NO(x)) and volatile organic compounds (VOC) pollution controls for ambient ozone concentration reduction programs. Large amounts of quantitative information for each South Central U.S. city are concisely synthesized into one graphic per city. Results reported in this paper show significant long-term decreases in ambient ozone and precursor concentrations in all four South Central U.S. cities, especially over the recent five-year period 2006-2010.
在美国中南部，对流层低层的臭氧污染仍然是一个具有挑战性的问题。本文提供了对美国中南部四个城市在过去25年（1986 - 2010年）收集的环境臭氧及前体物监测数据的长期趋势分析的更新情况，该分析是在之前发表的关于20年趋势的综述（M.E. 萨瑟和K. 卡文德，《环境监测杂志》，2007年，第9卷，第143 - 150页）基础上进行的。这些分析结果对于空气质量科学家、管理人员、规划人员和建模人员评估氮氧化物（NO(x)）和挥发性有机化合物（VOC）污染控制措施在降低环境臭氧浓度项目中的有效性应是有用的。美国中南部每个城市的大量定量信息被简洁地综合成每个城市一张图表。本文报告的结果表明，美国中南部所有四个城市的环境臭氧和前体物浓度都有显著的长期下降，特别是在最近的2006 - 2010年五年期间。
