泉州市区臭氧污染特征研究

Characteristics of Ozone Pollution in Quanzhou City

臭氧已成为影响泉州市区环境空气质量优良率最重要的指标。为探明泉州市区臭氧污染特征,基于2017年泉州市区四个环境空气自动监测国控站点臭氧的监测结果,对泉州市区臭氧污染的时间和空间分布特征进行了分析。结果表明:春秋季节臭氧浓度较高且超标天数较多; 4月和9月是臭氧浓度较高且超标天数较多的月份;臭氧日小时均值变化趋势呈单峰型,中午14时左右达峰值,早上6～7时左右达谷值;臭氧浓度清源山点位最高,津头埔和万安相当,涂山街最低。

Ozone has become the most important indicator of the excellent and good ratio of the environmental air quality in Quanzhou city. In order to study the ozone pollution characteristics of Quanzhou urban area, the spatial and temporal distribution characteristics of ozone pollution in Quanzhou city were analyzed based on the monitoring results of ozone of four state - controlled environmental air automatic monitoring station of Quanzhou urban area in 2017. The results showed that the number of days with high ozone concentration were more in spring and autumn. April and September were the period with most high ozone concentration days. The hourly variation trend of ozone concentration in one day was a single peak, reaching the peak at about 14：00 PM and reaching the valley at about 6：00 or 7：00 a. m. The ozone concentration of Qingyuan Mountain was the highest, while Jintou-pu and Wanan were about the same, and the Tushan Street was the lowest.