Share Email Print
cover

Proceedings Paper

Open path measurement of atmospheric pollutants using DOAS method
Author(s): Pavel P. Geiko; Sergey S. Smirnov; Ignatii V. Samokhvalov
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

An active differential optical absorption spectroscopy (DOAS) gas-analyzer was successfully tested. The DOAS system consisted of a coaxial telescope, a spectrometer, an analyzer and retroreflector. A high pressure 150-W Xe arc lamp and UV LEDs were employed as a light source. In order to record the spectra, a monochrometer with a grating and photodiode array was adopted. Gas analyzer spectral data bank includes more than 40 molecules absorbed in UV spectral region. The measured absorption spectra were evaluated by using a least-squares fit to determine the average mixing ratio of each species in the atmosphere. As a result of experiments time series of concentrations of gases polluting the atmosphere were trace measured. Minimally detected concentration is the unit of ppb on path length from 200 to 500 m at the time of accumulation up to 3 minute. The results of the field test measurements of pollutants in Tomsk are presented.

Paper Details

Date Published: 29 November 2016
PDF: 7 pages
Proc. SPIE 10035, 22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 100353N (29 November 2016); doi: 10.1117/12.2248817
Show Author Affiliations
Pavel P. Geiko, National Tomsk State Univ. (Russian Federation)
Institute of Monitoring of Climatic and Ecological Systems (Russian Federation)
Sergey S. Smirnov, National Tomsk State Univ. (Russian Federation)
Institute of Monitoring of Climatic and Ecological Systems (Russian Federation)
Ignatii V. Samokhvalov, National Tomsk State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 10035:
22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Gennadii G. Matvienko; Oleg A. Romanovskii, Editor(s)

© SPIE. Terms of Use
Back to Top