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《The Administration and Technique of Environmental Monitoring》 2017-03
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On-line Monitoring Study on the Vertical Distribution of PM_(2.5) Concentration in Guangzhou

KUANG Jun-xia;PEI Cheng-lei;HUANG Zu-zhao;ZHANG Jin-pu;QIU Xiao-nuan;Guangzhou Environmental Monitoring Center;  
Four automatic monitoring stations were laid on the Canton Tower from the ground to 500 m high.The vertical distribution of PM_(2.5)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 resolution. The primarily monitoring results showed that the relationship between PM_(2.5)concentration and the extinction coefficient at 355 nm was linear,R2 was 0. 853 7,indicating it could be used to inverse PM_(2.5)concentration through the extinction coefficient. There was good correlation between the inversion results and the on-line monitoring data at the height from 200 m to 550 m,the correlation coefficient was over 0. 868. PM_(2.5)concentration had good logarithmic correlation with the variation of altitude and R~2 reached to 0. 992 6.
【Fund】: 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
【CateGory Index】: X831
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