基于差分光学吸收光谱技术的交通主干道污染气体监测  

Traffic Pollution Gas Monitoring Based on Differential Optical Absorption Spectroscopy Technology

作　　者：王章军 郝菁 宋晨光 李先欣 Wang Zhangjun;Hao Jing;Song Chenguang;Li Xianxin(Institute of Oceanographic Instrumentation,Qilu University of Technology(Shandong Academy of Sciences),Qingdao,Shandong 266061,China;Qingdao Research Academy of Environmental Sciences,Qingdao,Shandong 266003,China;Qingdao Environmental Monitoring Station,Qingdao,Shandong 266003,China)

机构地区：[1]齐鲁工业大学(山东省科学院),山东省科学院海洋仪器仪表研究所,山东青岛266061 [2]青岛市环境保护科学研究院,山东青岛266003 [3]青岛市环境监测中心站,山东青岛266003

出　　处：《激光与光电子学进展》2020年第9期233-238,共6页Laser & Optoelectronics Progress

基　　金：国家重点研发计划(2016YFC1400301,2018YFC1407300);山东省重点研发计划(2019GGX104004);山东省自然科学基金(ZR2017QD009);海洋公益性行业科研专项(201505031)。

摘　　要：采用长程差分光学吸收光谱技术,对青岛市海尔路和银川东路交叉路口的污染气体进行实时连续监测,获得2017—2018年大气主要污染物NO2、O3和SO2的含量,并与附近环境监测站的同步监测数据进行对比。结果表明,二者具有很高的一致性,NO2和O3的小时平均结果相关系数分别为0.78和0.798,月平均结果相关系数分别为0.91和0.84,其中NO2的浓度分布呈现明显的早晚双峰特征。与实时获得的车流量数据进行相关性分析,结果显示:NO2浓度与交通流量呈强正相关,相关系数达到0.95;NO2浓度存在工作日高于周末的显著"周末效应"。In this study,the concentration levels of NO2,O3,and SO2 at the crossroad of Haier Road and East Yinchuan Road,Qingdao,are continually monitored in real-time based on the long path differential optical absorption spectroscopy(LP-DOAS)from 2017 to 2018.The concentration levels of NO2,O3,and SO2 obtained using LP-DOAS are compared with those obtained at the environmental monitor station,and a good agreement between these is found.The correlation coefficients of NO2 and O3 hourly average results are 0.78 and 0.798,respectively,and the correlation coefficients of monthly average results of these are 0.91 and 0.84,respectively.The diurnal variation of NO2 concentration presents two peaks,i.e.,in the morning and evening.Compared with the real-time traffic flow,NO2 concentration is strongly positively correlated with traffic flow,and the correlation coefficient is 0.95.There is a significant weekend effect in the NO2 concentration on working days relative to weekends.

关 键 词：光谱学 差分光学吸收光谱 污染监测 交通排放 污染气体 

分 类 号：X831[环境科学与工程—环境工程]