Results 251 to 260 of about 102,211 (306)

Plutonium bioaccumulation in seabirds

Journal of Environmental Radioactivity, 2011
The aim of the paper was plutonium (²³⁸Pu and ²³⁹⁺²⁴⁰Pu) determination in seabirds, permanently or temporarily living in northern Poland at the Baltic Sea coast. Together 11 marine birds species were examined: 3 species permanently residing in the southern Baltic, 4 species of wintering birds and 3 species of migrating birds.
Dagmara I, Strumińska-Parulska, Bogdan, Skwarzec, Jacek, Fabisiak   +2 more
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Assessing bioaccumulation with biomagnification factors from dietary bioaccumulation tests

Integrated Environmental Assessment and Management
Abstract Despite the fact that the UN Stockholm Convention on persistent organic pollutants specifically acknowledges that Arctic ecosystems and Indigenous communities are particularly at risk due to biomagnification of contaminants in traditional foods, the bioconcentration factor (BCF) of substances in fish remains the preferred metric
Frank A P C, Gobas, Nicole M, Berg, Aaron D, Redman, Thomas, Parkerton, Louise, Camenzuli   +4 more
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Classification of bioaccumulative and non-bioaccumulative chemicals using statistical learning approaches

Molecular Diversity, 2008
The present work aimed at developing in silico models allowing for a reliable prediction of bioaccumulative compounds and non-bioaccumulative compounds based on the definition of Bioconcentration Factor (BCF) using a diverse data set of 238 organic molecules.
Xiuli, Sun, Yan, Li, Xianjie, Liu, Jun, Ding, Yonghua, Wang, Hui, Shen, Yaqing, Chang   +6 more
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Use of the bioaccumulation factor to screen chemicals for bioaccumulation potential

Environmental Toxicology and Chemistry, 2012
Abstract The fish bioconcentration factor (BCF), as calculated from controlled laboratory tests, is commonly used in chemical management programs to screen chemicals for bioaccumulation potential. The bioaccumulation factor (BAF), as calculated from field-caught fish, is more ecologically relevant because it accounts for dietary ...
Jed, Costanza, David G, Lynch, Robert S, Boethling, Jon A, Arnot   +3 more
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Bioaccumulation processes in ecosystems

Experientia, 1992
The fate of environmental pollutants--the various isotopes of elements, and inorganic or organic compounds--is a fundamental aspect of ecology and ecotoxicology, and bioaccumulation is a phenomenon often discussed in this context. Human activities have drastically altered natural concentrations of many substances in the environment and added numerous ...
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Bioaccumulation of marine pollutants

Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1979
Bioaccumulation of pollutants can occur from sea water, from suspended particles, from sediments and through food chains. The rate at which accumulation occurs in an organism depends not only on the availability of the pollutant but also on a whole range of biological, chemical and environmental factors.
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Bioaccumulation and Biomagnification

2015
When a toxic chemical is taken up into an organism, it may be excreted, stored, or metabolized. What happens to the chemical will determine what its effects will be on that organism, and potentially the predators that may eat it.
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Bioaccumulation

2007
Schlekat, CE, McGeer, JC, Blust, R, Borgmann, U, Brix, KN, Bury, N, Couillard, Y, Dwyer, RL, Luoma, SN, Robertson, S, Sappington, KG, Schoeters, I, Sijm, DTHMrivm   +12 more
  +6 more sources

Bioaccumulation and Biomonitoring

2016
Bioaccumulation is defined as the increase of contaminant concentrations in aquatic organisms following uptake from the ambient environmental medium. Different sources of exposure contribute to contaminant bioaccumulation. Toxicokinetic parameters are critical in the bioaccumulation processes, including the dissolved uptake rate constant, dietary ...
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Bioaccumulation/Storage/Detoxification

2013
Bioavailability 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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