河南省臭氧污染趋势特征及敏感性变化  

Trend Changes in Ozone Pollution and Sensitivity Analysis of Ozone in Henan Province

作　　者：晏洋洋 尹沙沙 何秦[3] 秦凯[3] 张瑞芹[2] YAN Yang-yang;YIN Sha-sha;HE Qin;QIN Kai;ZHANG Rui-qin(College of Chemistry,Zhengzhou University,Zhengzhou 450001,China;School of Ecology and Environment,Zhengzhou University,Zhengzhou 450001,China;School of Environment and Spatial Informatics,China University of Mining and Technology,Xuzhou 221008,China)

机构地区：[1]郑州大学化学学院,郑州450001 [2]郑州大学生态与环境学院,郑州450001 [3]中国矿业大学环境与测绘学院,徐州221008

出　　处：《环境科学》2022年第6期2947-2956,共10页Environmental Science

基　　金：国家重点研发计划项目(2017YFC0212403);国家自然科学基金青年科学基金项目(41907187)。

摘　　要：基于环境空气质量站点数据及卫星遥感数据,研究了河南省近地面臭氧(O_(3))2015~2020年变化特征、趋势和生成敏感性.结果表明,2015~2020年,河南省近地面O_(3)浓度先上升后下降,2018年浓度最高,O_(3)日最大8 h滑动平均值(MDA8)年均值为110.70μg·m^(-3),各站点间的MDA8值差异逐渐缩小;河南省月均MDA8时间序列表现为上升趋势,增长速率为2.46μg·(m^(3)·a)^(-1),经Mann-Kendall趋势检验,除漯河、南阳和平顶山市外其它地市上升趋势均具有显著性意义(P<0.05);6 a间四季MDA8浓度也呈增长趋势,增长大小为:秋季(19.31%)>冬季(17.09%)>春季(16.82%)>夏季(7.24%);2015~2019年河南省对流层NO_(2)高值集中在西北部,浓度呈下降趋势,下降速率为0.34×10^(15) molecules·(cm^(2)·a)^(-1),对流层HCHO呈缓慢上升趋势,年增速为0.19×10^(15)molecules·(cm^(2)·a)^(-1),空间上北部城市城区浓度较高;O_(3)生成敏感性控制区表明,河南省东部大部分城市属于VOCs控制区.Based on air quality station data and satellite remote sensing data,the interannual variation characteristics and seasonal variation trends of near-surface ozone(O_(3))in Henan province were studied,and the variation in O_(3)sensitivity was analyzed.The results showed that the O_(3)concentration near the surface of Henan province increased first and then decreased from 2015 to 2020.The highest O_(3)concentration was found in 2018,and the annual mean of the maximum daily 8 h moving mean(MDA8)of O_(3)was 110.70μg·m^(-3).The difference in MDA8 values among different stations gradually decreased.From 2015 to 2020,the average monthly MDA8 in Henan province showed an upward trend,with a growth rate of 2.46μg·(m^(3)·a)^(-1).According to the MK trend test,except for in Luohe,Nanyang,and Pingdingshan,the rising trend in other cities was significant(P<0.05).The concentration of MDA8 in the four seasons also showed an increasing trend during the 6 years as follows:autumn(19.31%)>winter(17.09%)>spring(16.82%)>summer(7.24%).From 2015 to 2019,the high value of tropospheric NO_(2) was concentrated in the northwest of Henan province,and the concentration showed a decreasing trend with a decreasing rate of 0.34×10^(15) molecules·(cm^(2)·a)^(-1),whereas the tropospheric HCHO showed a slow rising trend with an annual growth rate of 0.19×10^(15)molecules·(cm^(2)·a)^(-1),with a higher concentration in the northern urban area.The O_(3)sensitivity control area from 2015 to 2019 showed that most of the eastern part of Henan province belonged to the VOCs limited category.

关 键 词：臭氧(O_(3)) 变化趋势 趋势检验 臭氧监测仪(OMI) 敏感性 

分 类 号：X515[环境科学与工程—环境工程]