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Title: Humic acids reduce the bioaccumulation and photoinduced toxicity of fluoranthene to fish

Abstract

The effects of dissolved humic materials (DHM) on the photoinduced toxicity of fluoranthene to juvenile fathead minnows (Pimephales promelas) were studied in single-treatment evaluations in a laboratory system under simulated sunlight (UV-A = 140.2 {+-} 2.6 {micro}W/cm{sup 2}, UV-B = 6.40 {+-} 0.21 {micro}W/cm{sup 2})(mean {+-} SE). Five concentrations of fluoranthene and five concentrations of DHM were achieved. The presence of DHM reduced the acute photoinduced toxicity of fluoranthene. Regression analysis revealed that median lethal times (LT50) were directly related to DHM concentration and inversely related to fluoranthene water concentration. The presence of DHM also reduced fluoranthene bioaccumulation, and LT50 values were inversely related to fluoranthene body residues. These findings demonstrate that (1) the photoinduced toxicity of fluoranthene is dependent on body residue and (2) site-specific environmental parameters that affect uptake and/or elimination can determine the rates of mortality due to photoinduced toxicity.

Authors:
;
Publication Date:
Research Org.:
Miami Univ., Oxford, OH (US)
OSTI Identifier:
20006637
Alternate Identifier(s):
OSTI ID: 20006637
Resource Type:
Journal Article
Journal Name:
Environmental Toxicology and Chemistry
Additional Journal Information:
Journal Volume: 18; Journal Issue: 9; Other Information: PBD: Sep 1999; Journal ID: ISSN 0730-7268
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 56 BIOLOGY AND MEDICINE, APPLIED STUDIES; WATER POLLUTION; BIOLOGICAL ACCUMULATION; HUMIC ACIDS; TOXICITY; FISHES; CONDENSED AROMATICS; PHOTOCHEMICAL REACTIONS

Citation Formats

Weinstein, J.E., and Oris, J.T. Humic acids reduce the bioaccumulation and photoinduced toxicity of fluoranthene to fish. United States: N. p., 1999. Web. doi:10.1897/1551-5028(1999)018<2087:HARTBA>2.3.CO;2.
Weinstein, J.E., & Oris, J.T. Humic acids reduce the bioaccumulation and photoinduced toxicity of fluoranthene to fish. United States. doi:10.1897/1551-5028(1999)018<2087:HARTBA>2.3.CO;2.
Weinstein, J.E., and Oris, J.T. Wed . "Humic acids reduce the bioaccumulation and photoinduced toxicity of fluoranthene to fish". United States. doi:10.1897/1551-5028(1999)018<2087:HARTBA>2.3.CO;2.
@article{osti_20006637,
title = {Humic acids reduce the bioaccumulation and photoinduced toxicity of fluoranthene to fish},
author = {Weinstein, J.E. and Oris, J.T.},
abstractNote = {The effects of dissolved humic materials (DHM) on the photoinduced toxicity of fluoranthene to juvenile fathead minnows (Pimephales promelas) were studied in single-treatment evaluations in a laboratory system under simulated sunlight (UV-A = 140.2 {+-} 2.6 {micro}W/cm{sup 2}, UV-B = 6.40 {+-} 0.21 {micro}W/cm{sup 2})(mean {+-} SE). Five concentrations of fluoranthene and five concentrations of DHM were achieved. The presence of DHM reduced the acute photoinduced toxicity of fluoranthene. Regression analysis revealed that median lethal times (LT50) were directly related to DHM concentration and inversely related to fluoranthene water concentration. The presence of DHM also reduced fluoranthene bioaccumulation, and LT50 values were inversely related to fluoranthene body residues. These findings demonstrate that (1) the photoinduced toxicity of fluoranthene is dependent on body residue and (2) site-specific environmental parameters that affect uptake and/or elimination can determine the rates of mortality due to photoinduced toxicity.},
doi = {10.1897/1551-5028(1999)018<2087:HARTBA>2.3.CO;2},
journal = {Environmental Toxicology and Chemistry},
issn = {0730-7268},
number = 9,
volume = 18,
place = {United States},
year = {1999},
month = {9}
}