摘要
根据2019年大连市环境空气质量监测数据,对比分析了不同时间尺度下主干路与市区臭氧浓度变化特征,并将主干路臭氧浓度与其他常规污染物小时浓度变化趋势进行了相关性分析。结果表明:在各种时间尺度下,大连市主干路与市区臭氧浓度变化趋势均一致,且主干路臭氧浓度均低于市区;主干路臭氧浓度与一氧化碳、细颗粒物的负相关性较好,与二氧化氮、可吸入颗粒物相关性较小,与二氧化硫相关性最低。
Based on the monitoring data of Dalian’s ambient air quality in 2019,this paper compared and analyzed the variation characteristics of ozone concentration in main roads and urban under different time scales.The correlation between ozone hourly concentration of main roads and other conventional pollutants are analyzed.The results show that the variation trend of ozone concentration in Dalian main roads is consistent with that in urban,and the ozone concentration in Dalian main roads is lower than that in urban.The ozone concentration of main road has a good negative correlation with carbon monoxide and inhalable particle,a small correlation with nitrogen dioxide and fine particulate matter,and the lowest correlation with sulfur dioxide.
作者
郑冬
冯诗婧
Zheng Dong;Feng Shijing(Dalian Ecological Environment Monitoring Centre of Liaoning Province,Dalian,Liaoning 116000,China)
出处
《绿色科技》
2021年第20期140-142,共3页
Journal of Green Science and Technology
关键词
大连市主干路
臭氧
常规污染物
main road in Dalian
ozone
conventional pollutants
