Results 271 to 280 of about 33,030 (282)
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Bioaccumulation of 95mTc in Fish and Snails
Health Physics, 1982Concentration factors for technetium recommended in radiological assessment models for freshwater biota are default values based on the behavior of iodine in the environment. In this study a small experimental freshwater pond was spiked with 95mTc to obtain data for calculating concentration factors for fish and snails.
D. L. DeAngelis +2 more
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A BIOACCUMULATION BIOASSAY FOR FRESHWATER SEDIMENTS
Environmental Toxicology and Chemistry, 1990Abstract A laboratory bioassay is described for determining the bioavailability of contaminants from freshwater sediments. The bioassay consists of 10-d exposures to whole sediments under flow-through conditions. After testing five species, the fathead minnow (Pimephales promelas) and the earthworm (Lumbricus terrestris) were recommended
John A. Shoesmith +5 more
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Pesticide Bioaccumulation and Metabolism
1999Registration of pesticides under the U.S. Federal Insecticide Fungicide Rodenticide Act requires multiple laboratory and field studies assessing bioaccumulation, persistence, and biotransformation in fish. The specific study requirements are dependent on the intended use of the pesticide, its physical/chemical properties, and its expected environmental
Mace G. Barron, Kent B. Woodburn
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Mechanisms of Bioaccumulation in Aquatic Systems
1995Bioaccumulation of contaminants in aquatic organisms occur via several routes, including absorption across the cuticle and respiratory surfaces and assimilation from ingested media. For many contaminants of environmental importance, bioaccumulation can be understood as a simple partitioning process in which contaminants accumulate in living organisms ...
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Bioaccumulation/Storage/Detoxification
2013Bioavailability refers to the fraction of the total chemical in the environment that is available for absorption into biota. This depends on the chemical, the organism, and environmental conditions, such as temperature, DO, and pH. Uptake of contaminants generally is via the skin, respiratory system, or food, with food being a major route of uptake for
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Bioaccumulation and risk assessment
Science of The Total Environment, 1993S. Lacorte +3 more
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Degradability, ecotoxicity and bioaccumulation
Science of The Total Environment, 1981openaire +2 more sources