摘要
随着经济的增长和机动车保有量的增加,天津市臭氧污染越来越严重。与平流层臭氧保护人类与环境的作用不同,对流层大气中臭氧浓度如果过高会造成一系列不利于人体健康的影响。针对臭氧污染情况,选取天津市2013年与2014年4个监测点位的臭氧、氮氧化物和PM2.5的常规小时监测数据,开展臭氧浓度对比以及臭氧时空变化分析和臭氧相关性分析。结果表明:臭氧浓度有增加的趋势;臭氧浓度呈现明显的季节和日变化规律;市中心的臭氧浓度比郊区低;臭氧浓度与氮氧化物、PM2.5呈现典型的负相关关系;臭氧浓度与温度成正相关,与湿度成负相关。
With the economic growth and increasing vehicle amount,ozone pollution in Tianjin is becoming increasing severe.Unlike stratospheric ozone which plays a role of protecting human health and environment,the tropospheric ozone concentration will cause a series of human health problems if exceeding the normal amount.Monitoring data of regular hours from 2013 to 2014 in Tianjin were analyzed,including ozone,nitrogen oxides and PM2.5.Ozone concentration in 2013 and 2014 was compared,and the temporal and spatial variation of ozone and ozone-related properties were analyzed.The results showed that：ozone concentration tends to increase and shows a significant seasonal and diurnal variation rule;ozone concentration in downtown area is lower than that in suburbs;the concentrations of ozone,nitrogen oxides and PM2.5show typical negative correlation;ozone concentration and temperature are positively correlated,negatively correlated with the humidity.
出处
《天津科技》
2015年第12期62-66,共5页
Tianjin Science & Technology
关键词
天津市
臭氧
时空变化
相关性分析
Tianjin
ozone
temporal changes
correlation analysis
