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A differential optical absorption spectroscopy (DOAS) system for urban atmospheric pollution monitoring

Technical Report:

Abstract

We describe a fully computer-controlled differential optical absorption spectroscopy (DOAS) system for atmospheric air pollution monitoring. A receiving optical telescope can sequentially tune in to light beams from a number of distant high-pressure xenon lamp light sources to cover the area of a medium-sized city. A beam-finding servo system and automatic gain control allow unattended long-time monitoring. Using an astronomical code, celestial sources can also be searched and tracked. Selected wave-length regions are rapidly and repetitively swept by a monochromator to sensitively record the atmospheric absorption spectrum while avoiding the detrimental effects of atmospheric turbulence. By computer fitting to stored laboratory spectra the path-averaged concentration of a number of important pollutants such as NO{sub 2}, SO{sub 2} and O{sub 3} can be evaluated. 22 refs, 9 figs
Publication Date:
Dec 31, 1993
Product Type:
Technical Report
Report Number:
LRAP-133
Reference Number:
SCA: 540120; PA: SWD-93:007394; EDB-94:021180; NTS-94:008783; ERA-19:007411; SN: 94001129787
Resource Relation:
Other Information: PBD: [1993]
Subject:
54 ENVIRONMENTAL SCIENCES; AIR POLLUTION MONITORS; ABSORPTION SPECTROSCOPY; NITROGEN DIOXIDE; SULFUR DIOXIDE; OZONE; FIELD TESTS; 540120; CHEMICALS MONITORING AND TRANSPORT
OSTI ID:
10117113
Research Organizations:
Lund Univ. (Sweden). Dept. of Physics
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0281-2762; Other: ON: DE94730427; TRN: SE9307394
Availability:
OSTI; NTIS
Submitting Site:
SWD
Size:
12 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Edner, H, Ragnarson, P, Spaennare, S, and Svanberg, S. A differential optical absorption spectroscopy (DOAS) system for urban atmospheric pollution monitoring. Sweden: N. p., 1993. Web.
Edner, H, Ragnarson, P, Spaennare, S, & Svanberg, S. A differential optical absorption spectroscopy (DOAS) system for urban atmospheric pollution monitoring. Sweden.
Edner, H, Ragnarson, P, Spaennare, S, and Svanberg, S. 1993. "A differential optical absorption spectroscopy (DOAS) system for urban atmospheric pollution monitoring." Sweden.
@misc{etde_10117113,
title = {A differential optical absorption spectroscopy (DOAS) system for urban atmospheric pollution monitoring}
author = {Edner, H, Ragnarson, P, Spaennare, S, and Svanberg, S}
abstractNote = {We describe a fully computer-controlled differential optical absorption spectroscopy (DOAS) system for atmospheric air pollution monitoring. A receiving optical telescope can sequentially tune in to light beams from a number of distant high-pressure xenon lamp light sources to cover the area of a medium-sized city. A beam-finding servo system and automatic gain control allow unattended long-time monitoring. Using an astronomical code, celestial sources can also be searched and tracked. Selected wave-length regions are rapidly and repetitively swept by a monochromator to sensitively record the atmospheric absorption spectrum while avoiding the detrimental effects of atmospheric turbulence. By computer fitting to stored laboratory spectra the path-averaged concentration of a number of important pollutants such as NO{sub 2}, SO{sub 2} and O{sub 3} can be evaluated. 22 refs, 9 figs}
place = {Sweden}
year = {1993}
month = {Dec}
}