Record Display for the EPA National Library Catalog


Main Title Ambient Air Hydroxyl Radical Concentrations: Measurements and Model Predictions.
Author Altshuller, A. P. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Publisher cMay 89
Year Published 1989
Report Number EPA/600/J-89/098;
Stock Number PB90-117086
Additional Subjects Mathematical models ; Gas analysis ; Sampling ; Concentration(Composition) ; Urban areas ; Rural areas ; Clouds(Meteorology) ; Trends ; Troposphere ; Photochemical reactions ; Carbon monoxide ; Ultraviolet radiation ; Reprints ; Hydroxyl radicals ; Atmospheric chemistry ; Laser induced fluorescence ; Chloroform/methyl ; Chemical reaction mechanisms
Library Call Number Additional Info Location Last
NTIS  PB90-117086 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
The review critically examines the limited number of recent near surface measurements of hydroxyl radicals in urban and rural areas. Predictions of average tropospheric, hemispheric and/or zonal concentrations of hydroxyl radicals derived from methylchloroform and carbon monoxide concentrations and models are discussed. The limitations of one and two dimensional model predictions of zonal and seasonal hydroxyl concentrations received detailed consideration. Of special concern on a regional scale are cloud cover effects on the penetration of ultraviolet radiation below 320 micrometers which is critical to the subsequent reactions forming hydroxyl radicals. (Copyright (c) 1989, Air and Waste Management Association.)