title: [Monitoring and analysis of urban ozone using open path Fourier transform infrared spectrometry].
abstract: An ozone monitoring system was developed by the method of open path Fourier transform infrared (OP-FTIR) spectrometry based on our FTIR spectrometer. In order to improve measurement precision and detection limit, the quantitative analysis was completed to get ozone concentration by combining synthetic background spectrum method which uses information from HITRAN database and instrumental line shape, and nonlinear least squares (NLLSQ) method. The measurement methods for system detection limit were discussed and the result is 1.42 nmol x mol(-1) with sixteen times averages. The authors developed continuous monitoring experiments in the suburban area of Hefei. For the day and month measurement results, the authors analyzed their variations with the generation sources. The result has shown that this system is reliable and precise and can be used as a new device and method for national ozone monitoring.
authors.affiliation: Key Lab of Environment Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China. freelsen@yahoo.com.cn
authors.forename: Sheng
authors.initials: S
authors.lastname: Li
authors.forename: Min-guang
authors.initials: MG
authors.lastname: Gao
authors.forename: Yu-jun
authors.initials: YJ
authors.lastname: Zhang
authors.forename: Wen-qing
authors.initials: WQ
authors.lastname: Liu
authors.forename: Liang
authors.initials: L
authors.lastname: Xu
authors.forename: Jing-jing
authors.initials: JJ
authors.lastname: Tong
authors.forename: Si-yang
authors.initials: SY
authors.lastname: Cheng
authors.forename: Ling
authors.initials: L
authors.lastname: Jin
authors.forename: Xiu-li
authors.initials: XL
authors.lastname: Wei
authors.forename: Ya-ping
authors.initials: YP
authors.lastname: Wang
authors.forename: Jun
authors.initials: J
authors.lastname: Chen