title: Optical remote measurement of toxic gases.
abstract: Enactment of the Clean Air Act Amendments (CAAA) of 1990 has resulted in increased ambient air monitoring needs for industry, some of which may be met efficiently using open-path optical remote sensing techniques. These techniques include Fourier transform spectroscopy, differential optical absorption spectroscopy, laser long-path absorption, differential absorption lidar, and gas cell correlation spectroscopy. With this regulatory impetus, it is an opportune time to consider applying these technologies to the remote and/or path-averaged measurement and monitoring of toxic gases covered by the CAAA. This article reviews the optical remote sensing technology and literature for that application.
authors.affiliation: NASA Langley Research Center, Hampton, Virginia.
authors.forename: W B
authors.initials: WB
authors.lastname: Grant
authors.forename: R H
authors.initials: RH
authors.lastname: Kagann
authors.forename: W A
authors.initials: WA
authors.lastname: McClenny
mesh_terms: D000393:Air Pollutants / Q000032:analysis* / Q000633:toxicity; D000397:Air Pollution / Q000331:legislation & jurisprudence; D013057:Spectrum Analysis / Q000295:instrumentation*; D014481:United States
chemical_list: D000393:Air Pollutants