skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Sediment quality and ecorisk assessment factors for a major river system

Abstract

Sediment-related water quality and risk assessment parameters for the Columbia River were developed using heavy metal loading and concentration data from Lake Roosevelt (river km 1120) to the mouth and adjacent coastal zone. Correlation of Pb, Zn, Hg, and Cd concentrations in downstream sediments with refinery operations in British Columbia suggest that solutes with K{sub d}`s > 10{sup 5} reach about 1 to 5 {mu}g/g per metric ton/year of input. A low-suspended load (upriver avg. <10 mg/L) and high particle-surface reactivity account for the high clay-fraction contaminant concentrations. In addition, a sediment exposure path was demonstrated based on analysis of post-shutdown biodynamics of a heavy metal radiotracer. The slow decline in sediment was attributed to resuspension, bioturbation, and anthropogenic disturbances. The above findings suggest that conservative sediment quality criteria should be used to restrict additional contaminant loading in the upper drainage basin. The issuance of an advisory for Lake Roosevelt, due in part to Hg accumulation in large sport fish, suggests more restrictive controls are needed. A monitoring strategy for assessing human exposure potential and the ecological health of the river is proposed.

Authors:
 [1];  [2];  [3]
  1. Westinghouse Hanford Co., Richland, WA (United States)
  2. Pacific Northwest Lab., Richland, WA (United States)
  3. Oak Ridge National Lab., TN (United States)
Publication Date:
Research Org.:
Westinghouse Hanford Co., Richland, WA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10140834
Report Number(s):
WHC-SA-1989; CONF-9406155-1
ON: DE94009613; BR: 35AF11201/35AF11202
DOE Contract Number:  
AC06-87RL10930
Resource Type:
Conference
Resource Relation:
Conference: AWRA annual summer symposium on effects of human-induced changes on hydrology systems,Jackson Hole, WY (United States),26-29 Jun 1994; Other Information: PBD: Aug 1993
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; SEDIMENTS; RADIONUCLIDE MIGRATION; METALS; ENVIRONMENTAL TRANSPORT; REMEDIAL ACTION; RISK ASSESSMENT; COLUMBIA RIVER; ECOLOGY; LEAD; ZINC; MERCURY; CADMIUM; ENVIRONMENTAL EXPOSURE; 540320; 540350; 054000; CHEMICALS MONITORING AND TRANSPORT; SITE RESOURCE AND USE STUDIES; HEALTH AND SAFETY

Citation Formats

Johnson, V.G., Wagner, J.J., and Cutshall, N.H. Sediment quality and ecorisk assessment factors for a major river system. United States: N. p., 1993. Web.
Johnson, V.G., Wagner, J.J., & Cutshall, N.H. Sediment quality and ecorisk assessment factors for a major river system. United States.
Johnson, V.G., Wagner, J.J., and Cutshall, N.H. Sun . "Sediment quality and ecorisk assessment factors for a major river system". United States. https://www.osti.gov/servlets/purl/10140834.
@article{osti_10140834,
title = {Sediment quality and ecorisk assessment factors for a major river system},
author = {Johnson, V.G. and Wagner, J.J. and Cutshall, N.H.},
abstractNote = {Sediment-related water quality and risk assessment parameters for the Columbia River were developed using heavy metal loading and concentration data from Lake Roosevelt (river km 1120) to the mouth and adjacent coastal zone. Correlation of Pb, Zn, Hg, and Cd concentrations in downstream sediments with refinery operations in British Columbia suggest that solutes with K{sub d}`s > 10{sup 5} reach about 1 to 5 {mu}g/g per metric ton/year of input. A low-suspended load (upriver avg. <10 mg/L) and high particle-surface reactivity account for the high clay-fraction contaminant concentrations. In addition, a sediment exposure path was demonstrated based on analysis of post-shutdown biodynamics of a heavy metal radiotracer. The slow decline in sediment was attributed to resuspension, bioturbation, and anthropogenic disturbances. The above findings suggest that conservative sediment quality criteria should be used to restrict additional contaminant loading in the upper drainage basin. The issuance of an advisory for Lake Roosevelt, due in part to Hg accumulation in large sport fish, suggests more restrictive controls are needed. A monitoring strategy for assessing human exposure potential and the ecological health of the river is proposed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {8}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: