RELATIONSHIPS BETWEEN MICROTOX TEST-RESULTS, EXTRACTION METHODS, AND PHYSICAL AND CHEMICAL-COMPOSITIONS OF MARINE SEDIMENT SAMPLES

被引：35

作者：

TRUE, CJ

HEYWARD, AA

机构：

[1] Municipality of Metropolitan Seattle Environmental Laboratories, Seattle, Washington, 98119

来源：

TOXICITY ASSESSMENT | 1990年 / 5卷 / 01期

关键词：

D O I：

10.1002/tox.2540050104

中图分类号：

R99 [毒物学（毒理学）];

学科分类号：

100405 ;

摘要：

Samples of marine subtidal sediments collected in 1985 and 1986 from Elliott Bay, Washington, were analyzed at the Environmental Laboratories of the Municipality of Metropolitan Seattle as part of a larger study. Interstitial water and solvent extracts of subtidal sediments were analyzed by the Microtox procedure to determine toxicity. Particle size distribution, and concentration of oil and grease, metals, and polynuclear aromatic hydrocarbons, were compared to toxicity of interstitial water and solvent extracts. Physical and chemical compositions of sediments affects the toxicities of solvent extracts and interstitial water extracts differently. Samples with smaller particle sizes had relatively high concentrations of oil and grease and metals, and less toxic interstitial water. Samples with larger particles had less oil and grease and metals, and more toxic interstitial water. The opposite was true for the solvent extracts: samples with smaller particle sizes with relatively higher concentrations of oil and grease and metals had more toxic solvent extracts. Samples containing larger particles with relatively lower concentrations of oil and grease and metals had less toxic solvent extracts. No correlations were found between the toxicity of the solvent extracts and polynuclear aromatic hydrocarbons. The Microtox procedure has the potential to estimate toxicity of both water‐soluble and solvent‐soluble compounds in marine sediments if two different extraction procedures are used. Copyright © 1990 Wiley Periodicals, Inc., A Wiley Company

引用

页码：29 / 45

页数：17

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