12 May 2005 Monitoring of SO2 emissions from industry by passive DOAS
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Proceedings Volume 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies; (2005); doi: 10.1117/12.619651
Event: Optical Technologies for Atmospheric, Ocean, and Environmental Studies, 2004, Beijing, China
Abstract
Sulfur dioxide is a highly toxic air contaminant that harms human health and damages the environment. It is easily converted to sulfuric acid which is the major component in acid rain and to sulfate particles. Coal-burning power plants are the main sources of SO2 pollution. It is necessary to evaluate the emissions from industry for emission reduction strategies. Passive DOAS method has been successfully applied in volcanic plume and atmosphere monitoring because of its advantage of relative simple system with no light source. Here we report the measurement of SO2 total flux from a chimney in plant area in Hefei city (China) with a compact passive DOAS system. The system consists of a small telescope pointing zenith direction and a fibre-coupled OceanOptics USB2000 spectrometer. In the measurement the system was mounted on a mobile platform moving under the plume approximately perpendicular to the plume transport direction and the spectra of the zenith direction were recorded. By combining the integrated gas concentration over the plume cross section with wind velocity data SO2 flux was estimated.
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Ang Li, Cheng Liu, Pinhua Xie, Jianguo Liu, Min Qin, Ke Dou, Wu Fang, Wenqing Liu, "Monitoring of SO2 emissions from industry by passive DOAS", Proc. SPIE 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies, (12 May 2005); doi: 10.1117/12.619651; https://doi.org/10.1117/12.619651
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KEYWORDS
Telescopes

Spectroscopy

Absorption

Sulfur

Ocean optics

Ultraviolet radiation

Atmospheric particles

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