Measurements of NO and CO in Shanghai urban atmosphere by using quantum cascade lasers | Zendy

Yuanyuan Tang | Zendy; Jianguo Liu | Zendy; Ruifeng Kan | Zendy; Yabai He | Zendy; Yujun Zhang | Zendy; Zhenyu Xu | Zendy; Ruan Jun | Zendy; Geng Hui | Zendy

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Measurements of NO and CO in Shanghai urban atmosphere by using quantum cascade lasers

Author(s) -

Yuanyuan Tang,

Jianguo Liu,

Ruifeng Kan,

Yabai He,

Yujun Zhang,

Zhenyu Xu,

Ruan Jun,

Geng Hui

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.020224

Subject(s) - environmental science , atmosphere (unit) , carbon monoxide , diurnal temperature variation , quantum cascade laser , cascade , trace gas , atmospheric sciences , laser , optics , materials science , remote sensing , meteorology , physics , chemistry , geology , biochemistry , chromatography , catalysis

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.

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