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Title: Influence of particle surfaces on the bioavailability to different species of 2,4-dichlorophenol and pentachlorophenol

Abstract

Studies on the bioavailability of contaminants that accumulate in sediments have been complicated by the chemical and structural variability of substrates and by the different biological properties of test organisms that are used by regulators. The purpose of this work was to overcome some of these difficulties by devising a test system that used artificial particles with known chemical surfaces. These were coated with 2,4-dichlorophenol or pentachlorophenol and fed to oligochete worms (Lumbriculus variegatus) and midge larvae (Chironimus riparius). The adsorption coefficient (K[sub d]) of the particle surface was compared with the concentration of contaminant accumulated by the test organisms. There were major differences in bioaccumulation between the two species used despite identical particles and pollutants. This clearly reflects differences in the uptake and detoxification pathways between species. The particle surface and its interaction with the chlorophenols was a major factor in the accumulation of the contaminants in an organism. The techniques that are described provide a way of standardizing results between different natural sediments and different test organisms and provide some insights into the processes involved in bioaccumulation from particle surfaces.

Authors:
; ; ; ;  [1]
  1. Univ. of Reading (United Kingdom). School of Animal and Microbial Sciences
Publication Date:
OSTI Identifier:
6428237
Resource Type:
Journal Article
Journal Name:
Environmental Science and Technology
Additional Journal Information:
Journal Volume: 33:14; Journal ID: ISSN 0013-936X
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; ANNELIDS; AQUATIC ORGANISMS; BIOLOGICAL ACCUMULATION; BIOLOGICAL AVAILABILITY; BIOLOGICAL INDICATORS; CHLORINATED AROMATIC HYDROCARBONS; FLIES; SEDIMENTS; WATER POLLUTION; ANIMALS; AROMATICS; ARTHROPODS; DIPTERA; HALOGENATED AROMATIC HYDROCARBONS; INSECTS; INVERTEBRATES; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; POLLUTION; 540320* - Environment, Aquatic- Chemicals Monitoring & Transport- (1990-); 560300 - Chemicals Metabolism & Toxicology

Citation Formats

Davies, N A, Edwards, P A, Lawrence, M A.M., Taylor, M G, and Simkiss, K. Influence of particle surfaces on the bioavailability to different species of 2,4-dichlorophenol and pentachlorophenol. United States: N. p., 1999. Web. doi:10.1021/es9900499.
Davies, N A, Edwards, P A, Lawrence, M A.M., Taylor, M G, & Simkiss, K. Influence of particle surfaces on the bioavailability to different species of 2,4-dichlorophenol and pentachlorophenol. United States. https://doi.org/10.1021/es9900499
Davies, N A, Edwards, P A, Lawrence, M A.M., Taylor, M G, and Simkiss, K. 1999. "Influence of particle surfaces on the bioavailability to different species of 2,4-dichlorophenol and pentachlorophenol". United States. https://doi.org/10.1021/es9900499.
@article{osti_6428237,
title = {Influence of particle surfaces on the bioavailability to different species of 2,4-dichlorophenol and pentachlorophenol},
author = {Davies, N A and Edwards, P A and Lawrence, M A.M. and Taylor, M G and Simkiss, K},
abstractNote = {Studies on the bioavailability of contaminants that accumulate in sediments have been complicated by the chemical and structural variability of substrates and by the different biological properties of test organisms that are used by regulators. The purpose of this work was to overcome some of these difficulties by devising a test system that used artificial particles with known chemical surfaces. These were coated with 2,4-dichlorophenol or pentachlorophenol and fed to oligochete worms (Lumbriculus variegatus) and midge larvae (Chironimus riparius). The adsorption coefficient (K[sub d]) of the particle surface was compared with the concentration of contaminant accumulated by the test organisms. There were major differences in bioaccumulation between the two species used despite identical particles and pollutants. This clearly reflects differences in the uptake and detoxification pathways between species. The particle surface and its interaction with the chlorophenols was a major factor in the accumulation of the contaminants in an organism. The techniques that are described provide a way of standardizing results between different natural sediments and different test organisms and provide some insights into the processes involved in bioaccumulation from particle surfaces.},
doi = {10.1021/es9900499},
url = {https://www.osti.gov/biblio/6428237}, journal = {Environmental Science and Technology},
issn = {0013-936X},
number = ,
volume = 33:14,
place = {United States},
year = {Thu Jul 15 00:00:00 EDT 1999},
month = {Thu Jul 15 00:00:00 EDT 1999}
}