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

Yuanyuan Tang, Wenqing Liu*, Ruifeng Kan, Jianguo Liu, Yabai He, Yujun Zhang, Zhenyu Xu, Jun Ruan, Hui Geng

*Corresponding author for this work

Research output: Contribution to journalArticle

15 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)20224-20232
Number of pages9
JournalOptics Express
Volume19
Issue number21
DOIs
Publication statusPublished - 10 Oct 2011
Externally publishedYes

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  • Cite this

    Tang, Y., Liu, W., Kan, R., Liu, J., He, Y., Zhang, Y., ... Geng, H. (2011). Measurements of NO and CO in Shanghai urban atmosphere by using quantum cascade lasers. Optics Express, 19(21), 20224-20232. https://doi.org/10.1364/OE.19.020224