Simultaneous measurements of atmospheric pollutants and visibility with a long-path DOAS system in urban areas

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In this paper, the applicability of a Long-Path Differential Optical Absorption Spectroscopy (LP-DOAS) system was checked for the feasibility of the simultaneous measurement of trace gases (such as O-3, NO2, SO2, and HCHO) and atmospheric visibility (light extinction by aerosols) in Asian urban areas. Field studies show that an LP-DOAS system can simultaneously measure the key pollutants (such as O-3, NO2, SO2, and HCHO) at detection limits in the ppb/sub-ppb range as well as the Mie extinction coefficient with an uncertainty of ∼ 0.1 km(-1) at time resolution of a few minutes. It is thus concluded that the use of LP-DOAS system is feasible for simultaneous measurement of gaseous pollutants as well as an atmospheric extinction coefficient which is tightly bound to fine particulate concentration.
Publisher
SPRINGER
Issue Date
2005-05
Language
English
Article Type
Article
Keywords

DIFFERENTIAL OPTICAL-ABSORPTION; SPECTROSCOPY DOAS; TRACE GASES; SPECTROMETER; NO2; SO2; KWANGJU; KOREA; O-3; UV

Citation

ENVIRONMENTAL MONITORING AND ASSESSMENT, v.104, no.1-3, pp.281 - 293

ISSN
0167-6369
DOI
10.1007/s10661-005-1616-6
URI
http://hdl.handle.net/10203/88100
Appears in Collection
RIMS Journal Papers
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