Lindsay R W, Richardson J L, Chameides W L
JAPCA. 1989 Jan;39(1):40-3. doi: 10.1080/08940630.1989.10466505.
Nine years of summertime ozone data from the Atlanta metropolitan area are analyzed and compared to local emissions of volatile organic carbon and nitrogen oxides. Trends from 1979 to 1987 were studied for the number of days per year ozone exceeded the NAAQS standard, the second-highest ozone level observed per year, and the first quartile summertime average ozone observed, as well as the mean difference between the ozone level observed downwind and upwind of the city. Because this last parameter is sensitive to chemical factors but relatively insensitive to the number of days each year with meteorological conditions conducive to ozone formation, its trend may be best suited for determining how effective emission controls have been in reducing O3 in the Atlanta area. In spite of the fact that sizeable reductions have been claimed for volatile organic carbon emissions over the past several years, the data give no indication that ozone levels have decreased and in fact imply that summertime ozone production may have increased. The results imply that either emissions have not decreased as much as has been claimed or that ozone is not sensitive to anthropogenic volatile organic carbon emissions. In either event, a reevaluation of our nation's strategy for O3 abatement in Atlanta and comparable cities is needed.
对来自亚特兰大大都市区的九年夏季臭氧数据进行了分析,并与挥发性有机碳和氮氧化物的本地排放量进行了比较。研究了1979年至1987年期间每年臭氧超过国家环境空气质量标准(NAAQS)的天数、每年观测到的第二高臭氧水平、观测到的第一四分位数夏季平均臭氧水平的趋势,以及在城市顺风和逆风方向观测到的臭氧水平之间的平均差异。由于最后一个参数对化学因素敏感,但对每年有利于臭氧形成的气象条件天数相对不敏感,其趋势可能最适合用于确定排放控制在降低亚特兰大地区臭氧方面的效果如何。尽管过去几年挥发性有机碳排放量据称有大幅减少,但数据并未表明臭氧水平有所下降,实际上暗示夏季臭氧产量可能增加了。结果表明,要么排放量没有像声称的那样减少,要么臭氧对人为挥发性有机碳排放不敏感。无论哪种情况,都需要重新评估我们国家在亚特兰大及类似城市减少臭氧的战略。