干旱区生态环境知识资源中心(Arid): Daytime measurements of bioaerosol simulants using a hyperspectral laser-induced fluorescence LIDAR for biosphere research

Arid

DOI	10.1016/j.jece.2020.104392
	Daytime measurements of bioaerosol simulants using a hyperspectral laser-induced fluorescence LIDAR for biosphere research
	Shoshanim, Ofir; Baratz, Adva
通讯作者	Shoshanim, O
来源期刊	JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
EISSN	2213-3437
出版年	2020
卷号	8 期号:5
英文摘要	A new compact home-built hyper-spectral laser-induced fluorescence (LIF) light detection and ranging (LIDAR) system is presented that can detect and identify bioaerosol clouds in an open atmosphere in daylight up to a distance of 3-4 km. The system is based on a 266 nm laser source and a dual-stage micro-channel plate intensified charge-coupled device sensor, which provides a high-resolution fluorescence spectrum with the sensitivity of a single photon counting imaging detection at a 10 Hz repetition rate. Controlled remote sensing experiments on biological simulants in the aerosol-phase within an enclosed chamber (Delta R = 1.2 m) were conducted from a short distance of similar to 170 m. A meticulous comparison between the remote fluorescence signal detected by the system and the instantaneous concentration and particle size distribution of the bioaerosol inside the chamber detected by an aerodynamic particle sizer yielded a threshold of similar to 20 and 137 mu gr s m(-3) for the spectral identification of tryptophan and ovalbumin, respectively. This showed that the LIDAR can measure environmental airborne biological aerosol remotely in the daytime and can be utilized as a real-time biosphere research tool. Next, the system was tested in open atmospheric field campaigns in the Israeli desert during the day. It successfully detected bioaerosol clouds at up to 2.5 km in strong wind and sunny conditions. These empirical detection and identification results provide robust estimates that a biological cloud can be sensed at a distance of similar to 4 km.
英文关键词	Bioaerosol Field campaign Laser-induced fluorescence (LIF) Light detection and ranging (LIDAR) Spectral angle mapping (SAM) analysis Photon counting
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000575533200010
WOS关键词	SIZE DISTRIBUTION ; AEROSOL-PARTICLES ; RESOLUTION ; SPECTRA
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326643
作者单位	[Shoshanim, Ofir] Israel Inst Biol Res IIBR, Dept Environm Phys, POB 19, IL-7410001 Ness Ziona, Israel; [Baratz, Adva] Israel Inst Biol Res IIBR, Dept Analyt Chem, POB 19, IL-7410001 Ness Ziona, Israel
推荐引用方式 GB/T 7714	Shoshanim, Ofir,Baratz, Adva. Daytime measurements of bioaerosol simulants using a hyperspectral laser-induced fluorescence LIDAR for biosphere research[J],2020,8(5).
APA	Shoshanim, Ofir,&Baratz, Adva.(2020).Daytime measurements of bioaerosol simulants using a hyperspectral laser-induced fluorescence LIDAR for biosphere research.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,8(5).
MLA	Shoshanim, Ofir,et al."Daytime measurements of bioaerosol simulants using a hyperspectral laser-induced fluorescence LIDAR for biosphere research".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 8.5(2020).