昌吉市城区臭氧日变化特征及与前体物的相关性分析  

Diurnal Variation Characteristics of Ozone in Urban Area of Changji and Its Correlation with Precursors

作　　者：何静 袁新杰 李高产 王曦 邓文叶 蔺尾燕 杨静 HE Jing;YUAN Xin-jie;LI Gao-chan;WANG Xi;DENG Wen-ye;LIN Wei-yan;YANG Jing(Xinjiang Academy of Environmental Protection Science,Urumqi,Xinjiang 830011;Xinjiang Key Laboratory for Environmental Pollution Monitoring and Risk Warning,Urumqi,Xinjiang 830011;Changji Environmental Monitoring Station,Changji,Xinjiang 831100,China)

机构地区：[1]新疆环境保护科学研究院,新疆乌鲁木齐830011 [2]新疆环境污染监控与风险预警重点实验室,新疆乌鲁木齐830011 [3]昌吉市环境监测站,新疆昌吉831100

出　　处：《新疆环境保护》2018年第1期1-5,23,共6页Environmental Protection of Xinjiang

基　　金：国家地区基金项目(41465008);新疆维吾尔自治区科技基础条件平台建设项目(PT1504)

摘　　要：对2016-04月至2017-03月昌吉市城区2个自动空气监测子站的臭氧及其前体物进行了分析,探讨昌吉市城区臭氧浓度的日变化特征以及与前体物的关系。研究发现,昌吉市城区臭氧在7~9月份维持相对较高浓度,臭氧浓度呈单峰型分布,一般在17:00、18:00达到峰值;CO、NO、NO_2和NO_x等前体物多呈双峰型分布,与O_3均呈显著负相关性,相关性在冬季较低。通过大气氧化剂OX和NO_x的拟合方程发现,昌吉市城区OX在夏季受局地污染和区域污染的影响均比秋季大。Ozone and its precursors from 2 automatic air monitoring stations in the urban area of Changji from April 2016 to March 2017 are analyzed to discuss the diurnal variation characteristics of ozone concentration in the urban area of Changji and its correlation with precursors.The results show that,the concentration of ozone in the urban area of Changji remains relatively high in July^September,showing an unimodal distribution,with the peak generally appears at 17:00 and 18:00;precursors such as CO,NO,NO2 and NOx,which show a bimodal distribution in most cases,are all negatively correlated with O3,and the correlation is low in winter.According to the fitting equation of OX and NOx,the impact of both local pollution and regional pollution on OX in summer is greater than that in autumn in the urban area of Changji.

关 键 词：昌吉市 前体物 臭氧 大气氧化剂(OX) 

分 类 号：X511[环境科学与工程—环境工程]