Differential absorption lidar system employed for background atomic mercury vertical profiling in South China

被引：31
作者：
Mei, Liang [1 ,3 ,4 ]
Zhao, Guangyu [1 ,2 ]
Svanberg, Sune [1 ,2 ,4 ]
机构：
[1] S China Normal Univ, Zhejiang Univ, Joint Res Ctr Photon, Guangzhou 510006, Guangdong, Peoples R China
[2] S China Normal Univ, Ctr Opt & Electromagnet Res, Guangzhou 510006, Guangdong, Peoples R China
[3] Zhejiang Univ, Ctr Opt & Electromagnet Res, Hangzhou 310058, Zhejiang, Peoples R China
[4] Lund Univ, Royal Inst Technol, Zhejiang Univ, Joint Res Ctr Photon, Hangzhou 310058, Zhejiang, Peoples R China
来源：
OPTICS AND LASERS IN ENGINEERING | 2014年 / 55卷
关键词：
Differential absorption lidar; DIAL; Atomic mercury; Oxygen; Pollutant; MICROWAVE-ASSISTED DIGESTION; PLASMA-MASS SPECTROMETRY; DIODE-LASER; ATMOSPHERIC MERCURY; FLUORESCENCE SPECTROMETRY; EMISSION-SPECTROMETRY; HYPERFINE-STRUCTURE; COMBUSTION EXHAUST; NITRIC-OXIDE; TRACE LEVELS;
D O I：
10.1016/j.optlaseng.2013.10.028
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A differential absorption lidar (DIAL) system based on a Nd:YAG laser pumped narrow-band dye laser is developed and employed to monitor the atmospheric background concentration of atomic mercury in Guangzhou, South China. Atmospheric oxygen is also studied by using neighboring wavelengths to the mercury absorption line (253.7 nm), and is used to verify the operation of the DIAL system. A 24-hour continuous monitoring of background mercury concentration is performed and the average atomic mercury concentration below 330 m is between 5 ng/m(3) and 12 ng/m(3). (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：128 / 135
页数：8
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