Record Display for the EPA National Library Catalog


Main Title Simulation of Airborne Microbial Droplet Transport.
Author Lighthart, B. ; Kim., J. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Oregon State Univ., Corvallis. Dept. of Atmospheric Sciences.
Publisher c1989
Year Published 1989
Report Number EPA/600/J-89/200;
Stock Number PB90-140757
Additional Subjects Atmospheric diffusion ; Mathematical models ; Drops(Liquids) ; Microorganisms ; Air pollution ; Sources ; Particle size distribution ; Evaporation ; Wind(Meteorology) ; Velocity ; Reprints ; Environmental transport
Library Call Number Additional Info Location Last
NTIS  PB90-140757 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
In the past, large-scale aerial dispersal of microorganisms from sources such as evaporative cooling towers and sewage irrigation and treatment plants has been estimated by using atmospheric dispersion models based on temporal and spatial averaging as defined in the Gaussian plume models. The framework for a simulation model which describes the dispersion of individual droplets of water containing viable microbes is presented. The model accounts for physical, chemical, biological, and measured meteorological parameters of each droplet at each of many short steps. Repeating the modeling process for many droplets will simulate a cloud of droplets. The model is compared with the Tulelake, California release in 1988 and found to show very similar patterns of deposition within 30 m (the maximum observation distance of the source). A hypothesis for the survival sequence in the microbe-containing droplets is discussed. (Copyright (c) 1989, American Society for Microbiology.)