摘要
广州塔空气质量自动监测站在地面至高空500 m高度内布设了4个站点。在自动站内利用PM_(2.5)质量浓度点式在线监测和激光雷达消光系数遥感监测技术,实现对PM_(2.5)质量浓度垂直分布的在线监测,监测方法具有很高的时间分辨率和空间分辨率。利用该方法开展阶段性监测表明:PM_(2.5)质量浓度与355 nm消光系数间具有很好的线性关系,R2达到0.853 7,利用线性关系式可反演PM_(2.5)质量浓度。对200 m^550 m间反演结果分析表明:反演结果与在线监测数据具有很好的相关性,相关系数达到0.868以上;PM_(2.5)质量浓度随着高度改变呈显著的对数相关关系,R2达到0.992 6。
Four automatic monitoring stations were laid on the Canton Tower from the ground to 500 m high. The vertical distribution of PM2.5 concentration was monitored by point mode on -line monitoring technology and remote sensing monitoring technology of Lidar extinction coefficient. This method had good time and spatial reso-lution. The primarily monitoring results showed that the relationship between PM2.5 concentration and th ex t in c -tion coefficient at 355 nm was linear, R1 was 0. 853 7 , in dicating it could be used to inverse PM2.5 concentration through the extinction coefficient. There was good correlation between the inversion results and the on-line moni-toring data at the height from 200 m to 550 m, the correlation coefficient was over 0.868. PM2.5 concentration had good logarithmic correlation with the variation of altitude and R^2 reached to 0.9 92 6 .
作者
邝俊侠
裴成磊
黄祖照
张金谱
邱晓暖
KUANG Jun-xia PEI Cheng-lei HUANG Zu-zhao ZHANG Jin-pu QIU Xiao-nuan(Guangzhou Environmental Monitoring Center, Guangzhou,Guangdong 510030 , China)
出处
《环境监测管理与技术》
CSCD
2017年第3期23-26,共4页
The Administration and Technique of Environmental Monitoring
基金
广州市科技计划基金资助项目(201604020006)
广州市环保局污染防治新技术新工艺开发"广州市典型污染季节大气细粒子浓度垂直变化规律及其演化特征"基金资助项目
关键词
PM2.5
垂直分布
在线监测
激光雷达
消光系数
广州塔
PM2.5
Vertical distribution
On-line monitoring
Lidar
Extinction coefficient
Canton Tower
