北京市夏季近地层臭氧对气温的量化响应关系  

Quantitative Relationship between Near-Surface Ozone and Air Temperature over Beijing Area in Summer

作　　者：唐枷榕 田润泽 郭文勇 张众志 徐峻[1] 刘世杰[1] 张树宪 马琳琳 叶子恒 黄荷卉 TANG Jiarong;TIAN Runze;GUO Wenyong;ZHANG Zhongzhi;XU Jun;LIU Shijie;ZHANG Shuxian;MA Linlin;YE Ziheng;HUANG Hehui(Atmospheric Environment Institute,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;Henan Meteorological Disaster Prevention Technology Center,Zhengzhou 450003,China;Luxi Chemical Group Co.,Ltd.,Liaocheng 252000,China)

机构地区：[1]中国环境科学研究院大气环境研究所,北京100012 [2]河南省气象灾害防御技术中心,河南郑州450003 [3]鲁西化工集团有限公司,山东聊城252000

出　　处：《环境科学研究》2023年第5期904-912,共9页Research of Environmental Sciences

基　　金：国家自然科学基金项目(No.41575127);国家重点研发计划重点专项(No.2019YFC0214800)。

摘　　要：为研究不同污染水平下,O_(3)浓度对气温升高的敏感程度,利用2018—2020年5—9月近地层O_(3)日最大8 h平均浓度(O_(3)-8 h浓度)和日最高地面气温(T_(max))数据,拟合O_(3)-8 h浓度对T_(max)变化的响应斜率(m_(O_(3)-T)),据此对比分析不同类型站点m_(O_(3)-T)的差异和O_(3)污染特征.结果表明:(1)各站点O_(3)-8 h浓度均随T_(max)升高而增加,在24~36℃气温范围内该趋势最明显.(2)城区点m_(O_(3)-T)最高,高达10.6μg/(m^(3)·℃);北部远郊区点和北部背景点m_(O_(3)-T)较低,低至5.2μg/(m^(3)·℃);近郊区点与城区点的m_(O_(3)-T)相当.(3)总体看,北京市m_(O_(3)-T)较高,与O_(3)污染高发地—美国加州南海岸地区20世纪90年代相当,说明目前北京市O_(3)污染水平可能与该时期加州南海岸地区相近.(4)周末效应分析表明,北京市北部远郊区点和北部背景点的周末效应均高于主城区点,用m_(O_(3)-T)表征的周末效应能更显著地体现不同区域间的差异.研究显示,m_(O_(3)-T)能表征北京市的O_(3)污染特征以及目前O_(3)污染治理水平所处阶段.In order to study the sensitivity of O_(3) concentration to temperature rise under different pollution levels,we fitted the response slope(m_(O_(3)-T))of the daily maximum 8 h ozone(O_(3)-8 h)to the change of the daily maximum surface air temperature(T_(max))using the data from May to September from 2018 to 2020,and analyzed and compared the differences of m_(O_(3)-T) and ozone pollution characteristics of different types of sites.The results showed that:(1)O_(3)-8 h increased with the increase of T_(max) at all sites,and the trend was most obvious in the temperature range of 24-36℃.(2)The highest m_(O_(3)-T) was at urban sites,reaching 10.6μg/(m^(3)·℃).The lowest value appeared at the northern outer suburb sites and the northern background sites,which was as low as 5.2μg/(m^(3)·℃).The suburban sites were equivalent to the urban sites.Overall,the m_(O_(3)-T) level in Beijing is similar to that of the California south coast in the 1990s,suggesting that the current level of O_(3) pollution in Beijing may be similar to that on the California south coast at that time.(3)The analysis of the weekend effect showed that the weekend effect of the northern outer suburban sites and the northern background sites were higher than that of the urban area.The weekend effect represented by m_(O_(3)-T) can better reflect the differences in different regions.In general,m_(O_(3)-T) can represent the characteristics of O_(3) pollution and the stage of the current O_(3) pollution control level in Beijing.

关 键 词：O_(3) 气温 量化关系 周末效应 北京市 

分 类 号：X515[环境科学与工程—环境工程]