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Measurements of NO and CO in Shanghai urban atmosphere by using quantum cascade lasers |
Optics Express, Vol. 19, Issue 21, pp. 20224-20232 (2011)
http://dx.doi.org/10.1364/OE.19.020224
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Abstract
Nitric oxide (NO) and carbon monoxide (CO) in Shanghai urban atmosphere have been measured during the EXPO 2010 by an optical trace gas monitoring system based on room-temperature pulsed quantum cascade lasers (QCL). The results showed obvious diurnal variation in their concentrations. A great correlation was found by analyzing the diurnal variation, indicating common emission sources for both NO and CO. However analysis of the data from street canyon measurements showed that on a vehicle-by-vehicle basis NO emissions correlated only weakly with CO emissions. A possible explanation to this issue has been given.
© 2011 OSA
OCIS Codes
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(280.1120) Remote sensing and sensors : Air pollution monitoring
(300.6340) Spectroscopy : Spectroscopy, infrared
(140.5965) Lasers and laser optics : Semiconductor lasers, quantum cascade
ToC Category:
Remote Sensing
History
Original Manuscript: July 15, 2011
Revised Manuscript: September 2, 2011
Manuscript Accepted: September 5, 2011
Published: September 30, 2011
Citation
Tang Yuanyuan, Liu Wenqing, Kan Ruifeng, Liu Jianguo, He Yabai, Zhang Yujun, Xu Zhenyu, Ruan Jun, and Geng Hui, "Measurements of NO and CO in Shanghai urban atmosphere by using quantum cascade lasers," Opt. Express 19, 20224-20232 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-21-20224
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