Large-scale mass balance for lead in southern Lake Michigan

Cogley, Allen C.

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https://hdl.handle.net/2142/90390 Copy

Description

Title

Large-scale mass balance for lead in southern Lake Michigan

Author(s)

Cogley, Allen C.

Contributor(s)

University of Illinois at Chicago Circle

Issue Date

1974-12

Keyword(s)

• Water resource development--Illinois
• Water resource development
• Water quality
• Lake Michigan
• Lead mass-balance
• Atmospheric transport
• Aerosols

Geographic Coverage

Illinois (state)

Abstract

A large-scale, order-of-magnitude mass balance for lead in the near field of Chicago (the source) is presented. Both experimental data and simple physical modeling are used to estimate the transport of lead from the major sources to the near-field sinks of Southern Lake Michigan, its watershed soil, and the surroundings (losses from the system under question). The results show that atmospheric transport of lead aerosols to a sink like Lake Michigan is about two orders of magnitude greater than other transport mechanisms. To perform a detailed (small-scale) mass balance for lead, in support of the large-scale results, a complete model of atmospheric, aerosol transport and deposition is necessary and dominant. Although much work has been done on (free) turbulent dispersion of aerosols and aerosol deposition through precipitation, little is known about the dry deposition of aerosols from a turbulent boundary layer. An aerosol, turbulent dispersion model with a realistic boundary condition at the fluid-ground interface needs to be developed. A coordinated experimental program for measuring (dry) aerosol flux to the ground (and Lake) should be initiated.

Publisher

University of Illinois at Urbana-Champaign. Water Resources Center

Type of Resource

text

Permalink

http://hdl.handle.net/2142/90390

Sponsor(s)/Grant Number(s)

• U.S. Department of the Interior
• U.S. Geological Survey

Copyright and License Information

Copyright 1974 held by Allen C. Cogley

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