Baseline ecological risk assessment of the Calcasieu Estuary, Louisiana: 1. Overview and problem formulation

Archives of Environmental Contamination and Toxicology
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Abstract

A remedial investigation/feasibility study (RI/FS) of the Calcasieu Estuary cooperative site was initiated in 1998. This site, which is located in the southwestern portion of Louisiana in the vicinity of Lake Charles, includes the portion of the estuary from the saltwater barrier on the Calcasieu River to Moss Lake. As part of the RI/FS, a baseline ecological risk assessment (BERA) was conducted to assess the risks to aquatic organisms and aquatic-dependent wildlife exposed to environmental contaminants. The purpose of the BERA was to determine if adverse effects on ecological receptors are occurring in the estuary; to evaluate the nature, severity, and areal extent of any such effects; and to identify the substances that are causing or substantially contributing to effects on ecological receptors. This article describes the environmental setting and site history, identifies the chemicals of potential concern, presents the exposure scenarios and conceptual model for the site, and summarizes the assessment and measurement endpoints that were used in the investigation. Two additional articles in this series describe the results of an evaluation of effects-based sediment-quality guidelines as well as an assessment of risks to benthic invertebrates associated with exposure to contaminated sediment.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Baseline ecological risk assessment of the Calcasieu Estuary, Louisiana: 1. Overview and problem formulation
Series title Archives of Environmental Contamination and Toxicology
DOI 10.1007/s00244-010-9636-9
Volume 61
Issue 1
Year Published 2011
Language English
Publisher Springer
Contributing office(s) Contaminant Biology Program, Columbia Environmental Research Center
Description 13 p.
First page 1
Last page 13
Country United States
State Louisiana
Other Geospatial Calcasieu Estuary