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Title:Sources of phosphorus inputs from the atmosphere and their significance to oligotrophic lakes
Author(s):Murphy, Thomas J.
Contributor(s):DePaul University
Subject(s):Water resource development--Illinois
Water resource development
Water quality
Particulate matter
Oligotrophic lakes
Lake Michigan
Atmospheric inputs
Geographic Coverage:Illinois (state)
Abstract:Precipitation in the Chicago area was analyzed and found to contain .034 mg/l. of phosphorus with about one half of this present as orthophosphate. Because of the small amounts of phosphorus needed to stimulate the growth of organisms in bodies of water which are phosphorus limited, these inputs from the atmosphere are important to many natural bodies of water. From one-fifth to one-third of the phosphorus going into Lake Michigan is from precipitation. The sources of this phosphorus were investigated and found to be almost all sources of particulate matter. With the exception of emissions from the fertilizer industry these were found to contain a relatively consistent 0.1 percent phosphorus. Since the discharge of particulates to the atmosphere are being controlled, contributions of phosphorus to bodies of water from the atmosphere would also be controlled.
Issue Date:1974-09
Publisher:University of Illinois at Urbana-Champaign. Water Resources Center
Genre:Report (Grant or Annual)
Sponsor:U.S. Department of the Interior
U.S. Geological Survey
Rights Information:Copyright 1974 held by Thomas J. Murphy
Date Available in IDEALS:2016-06-29

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