Dissertation/Thesis Abstract

Metal and Pesticide Preservation in the Winous Point Marshes, Sandusky, Ohio
by Spera, Shelley M., M.S., The University of Toledo, 2004, 66; 10835959
Abstract (Summary)

Cores from marshes along the southwest shore of Lake Erie were 210Pb age-dated and analyzed for heavy metal and pesticide pollutants. The North Marsh is directly affected by agricultural run-off, while the West Marsh has been diked since 1978. Since marshes can act as sinks for metal, pesticides, and suspended solids, the chemistries of the marshes were expected to differ. However, concentrations of Al, Cd, Cr, Cu, Fe, Mn, Ni, Pb, V and Zn did not differ. Metal accumulation within each marsh was different for every metal studied except Ni. This was also true for accumulation averages from background (pre-1978) and recent deposits (1979-1997), which indicate the diking of the West Marsh has had a significant impact on the metal accumulation. Previously used pesticides, which have been banned for many years, were also found in both marshes. However, pesticide concentrations are higher in the agriculturally impacted marsh.

Indexing (document details)
Advisor: Spongberg, Alison
Commitee:
School: The University of Toledo
Department: Geology
School Location: United States -- Ohio
Source: MAI 57/06M(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Geology, Geochemistry
Keywords: 210pb age dating, Accumulation rates, Cd, Cr, Cu, Fe, Heavy metal concentrations, Heavy metals (including al, Lake erie, Mn, Ni, Pb, Persistent pesticides (including ddt), V and zn)
Publication Number: 10835959
ISBN: 9780355971057
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