沈阳市近年臭氧浓度变化及累积速率对比分析

近年来,随着机动车等污染增多,臭氧浓度也随之增加,使臭氧成为大气污染的罪魁祸首之一。大城市臭氧污染已成为城市群及邻近地区产生区域污染的重要原因,臭氧浓度变化规律研究随着光化学污染日益加重而受到人们的重视。运用沈阳市近4年的臭氧浓度数据,对比分析臭氧浓度和臭氧累积速率的变化规律,分别对不同年份、夏季不同月份以及特殊点位的臭氧浓度与累积速率进行对比分析。研究表明,臭氧浓度日变化成单峰趋势,而臭氧累积速率则有峰值和谷值;夏季臭氧日变化峰值逐年升高,不同年份臭氧累积速率变化较小。

In recent years, as the number of motor vehicles increased, the ozone concentration also increased. Make ozone one of the main culprits of air pollution. Ozone pollution in large cities has become an important cause of regional pollution in urban agglomerations and adjacent areas. Research on the change law of ozone concentration has attracted people's attention as photochemical pollution has become more and more serious. The data of ozone concentration in Shenyang for the past four years is used to compare and analyze the changes law of ozone concentration and ozone accumulation rate. The ozone concentration and accumulation rate of different years, of different months in summer and of special points are compared and analyzed. The results show that ozone concentration changes daily appears to a single peak trend, while ozone accumulation rate has peak and valley value. The peak value of daily variation of ozone concentration in summer increased year by year, and the rate of ozone accumulation in different years changed little.