Characterization of toxic conditions above Wilson's Creek National Battlefield Park, Missouri

Journal of the American Water Resources Association
By: , and 

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Abstract

ABSTRACT: Wilson's Creek has an extensive history of toxicity from both point and nonpoint sources. Seven-day chronic daphnid (Ceriodaphnia dubia) bioassays identified one toxic site in the Wilson's Creek watershed. Procedures for the characterization phase of a Toxicity Identification Evaluation (TIE) were modified for chronic assessment and performed on four water samples from the toxic site. The characterization involved chemical/physical alterations of samples, combined with bioassays, to help in identification of the class(es) of toxicants; followed by chemical analyses. To help understand the additivity of mixtures, toxic units were derived. Successive samples contained concentrations of copper, cadmium, nickel and zinc that literature values describe as being chronically toxic to daphnids. Summed chronic toxic units for these values greatly exceeded ambient toxic units, and more than accounted for observed toxicity.

Publication type Article
Publication Subtype Journal Article
Title Characterization of toxic conditions above Wilson's Creek National Battlefield Park, Missouri
Series title Journal of the American Water Resources Association
DOI 10.1111/j.1752-1688.1998.tb04156.x
Volume 34
Issue 5
Year Published 1998
Language English
Publisher American Water Resources Association
Description 12 p.
First page 1087
Last page 1098
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