十堰市环境空气中臭氧污染特征研究

Ozone Pollution Characteristic of Ambient Air in Shiyan City

近年来,十堰市环境空气中臭氧浓度日益增加,成为仅次于细颗粒物的主要大气污染物。为了解十堰市城区臭氧污染特征,利用2013-2017年历史观测数据,对城区臭氧污染现状及时空变化规律进行分析。结果表明:臭氧污染在空间上呈现出明显的差异,最高值与最低值分别出现在滨河新村点位和柳陂点位,在时间上呈现出工作日大于休息日的情况。夏季是城区臭氧污染最严重的季节,冬季臭氧浓度较低;一天中臭氧浓度呈现明显的单峰型变化规律。

With the increasing concentration in recent years, ozone became one of the major air pollutants second only to fine particulate in ambient air of Shiyan. In order to understand the ozone pollution characteristics of Shiyan, the present situation and the time and space characteristics has been analyzed by using history observation data from 2013 to 2017. The results showed that the ozone density difference was obvious in space between different sites, the highest and lowest values were observed at Binhexincun and Liubei, the ozone concentration during working day was higher than weekends. Summer is the season of most serious ozone pollution in urban city, ozone concentration is lower in winter. In one day, the concentration of ozone showed obvious singlepeak pattern.