An evaluation of an area source diffusion model for carbon monoxide in Rockford, Illinois

Alan Krol

Publication Date

1975

Document Type

Dissertation/Thesis

First Advisor

Cole, Alan L.

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Geography

LCSH

Carbon monoxide; Air--Pollution--Rockford; Ill

Abstract

A synoptic model for dispersion of carbon monoxide in a small urban area, Rockford, Illinois, was devised. The model uses automobiles as the sole source for the carbon monoxide and treats these sources mathematically as an area source. The diffusion equations used to simulate dispersion and atmospheric turbulence are those presented in the literature by other workers, and utilize the best empirical data available for estimating vertical plume spread in urban areas. The model is evaluated by comparing actual measurements made in Rockford with the output produced by the model. The evaluation shows a large difference in specific areas of Rockford when compared to reality since the concentrations produced by the model are always below 4.0 ppm with no spatial variation. Possible sources of errors are discussed as well as suggestions for improvements in empirical data available for use in the model. SYMAP produced maps showing contours of concentrations observed in the field are presented.

Comments

Includes bibliographical references (pages [40]-43)

Extent

70 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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