Results 191 to 200 of about 14,405,927 (244)

Bioconcentration factors and lipid solubility

Environmental Science & Technology, 1991
The log-log relationship between bioconcentration and hydrophobicity breaks down for several medium and high molecular weight solutes that bioconcentrate either to a small extent or not at all. Much of the failure is attributed to the relatively low solubility of these compounds in lipid.
Sujit Banerjee, George L. Baughman
openaire   +1 more source

Insight into the toxic effects, bioconcentration and oxidative stress of acetamiprid on Rana nigromaculata tadpoles.

Chemosphere, 2022
Pesticide pollution has been identified as a factor in the amphibian population decrease. Acetamiprid is a common neonicotinoid pesticide that poses a risk to amphibians due to its high water solubility and inability to be digested.
Wang Guo, Ya Yang, Xia Zhou, Renyue Ming, D. Hu, Ping Lu   +5 more
semanticscholar   +1 more source

Bioconcentration factors of mercury by Parasol Mushroom (Macrolepiota procera) [PDF]

Environmental Geochemistry and Health, 2008
To examine bioconcentration factors (BCFs) of mercury by Parasol Mushroom (Macrolepiota procera) roughly similarly sized (a cap diameter) fruiting bodies of this fungus and underlying soil (0-10 cm) samples were collected at 15 sites in Poland between 1995 and 2003.
Jerzy, Falandysz, Magdalena, Gucia
openaire   +2 more sources

Bioconcentration factor-based management of soil pesticide residues: Endosulfan uptake by carrot and potato plants.

Science of the Total Environment, 2018
Uptake characteristics of endosulfan (ED), including α-, β-isomers and sulfate-metabolites, from the soils by carrot and potato plants were investigated to establish a method that may be used to calculate recommended permissible soil contaminant ...
Jeong-In Hwang, A. Zimmerman, Jang-Eok Kim   +2 more
semanticscholar   +1 more source

Bioconcentration factors (BCF) of silver in wild Agaricus campestris

Bulletin of Environmental Contamination and Toxicology, 1995
Silver is an element naturally occurring in small concentrations in different environmental sites. However, many anthropogenic sources of silver led to contamination of this element in soil surfaces, pastures, and coastal marine areas in different parts of the world.
J, Falandysz, D, Danisiewicz
openaire   +2 more sources

The Concentrations and Bioconcentration Factors of Copper and Zinc in Edible Mushrooms

Archives of Environmental Contamination and Toxicology, 2003
Copper and zinc contents have been determined in up to 28 species of edible mushrooms from different sites in the province of Lugo (NW Spain). Two hundred thirty-eight collected samples were analyzed by an anodic stripping voltammetric technique using a drop mercury as the working electrode.
J, Alonso, M A, García, M, Pérez-López, M J, Melgar   +3 more
openaire   +2 more sources

Improved prediction of fish bioconcentration factor of Hydrophobic Chemicals

SAR and QSAR in Environmental Research, 2004
Using a large heterogeneous data-set of 640 organic chemicals, we have developed predictive Quantitative Structure-Activity Relationship models for fish bioconcentration factor (BCF). For 539 chemicals with a log Kow (octanol-water partition coefficient) range of -2.3 to 6.0, we developed a model with r2 = 0.664 and a standard error of 0.661; the ...
J C, Dearden, N M, Shinnawei
openaire   +2 more sources

Reevaluation of dioxin bioconcentration and bioaccumulation factors for regulatory purposes

Journal of Toxicology and Environmental Health, 1992
Bioconcentration factors (BCF) or bioaccumulation factors (BAF) reported for 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD or dioxin) in aquatic environments encompass a wide range of values, from less than 1000 to 189,000 l/kg. These values are based on concentrations of TCDD in various environmental media including water, sediment, or food.
W R, Sherman, R E, Keenan, D G, Gunster
openaire   +2 more sources

Bioconcentration Factors for Volatile Organic Compounds in Vegetation

Analytical Chemistry, 1998
Samples of air and leaves were taken at the University of Nevada [Formula: see text] Las Vegas campus and analyzed for volatile organic compounds using vacuum distillation coupled with gas chromatography/mass spectrometry. The data were used to estimate the bioconcentration of volatile organic compounds (VOCs) and to characterize the equilibration of ...
openaire   +2 more sources

QSAR Modeling of Bioconcentration Factor by theoretical molecular descriptors

QSAR & Combinatorial Science, 2003
AbstractBioconcentration factor (BCF) is an important ecotoxicological parameter describing the tendency of chemical concentration in organisms, mainly aquatic. Log BCF of 238 non‐ionic organic compounds was modelled by multiple linear regression models, using theoretical structural descriptors of different kinds (1D‐, 2D‐ and 3D‐) selected by the ...
GRAMATICA, PAOLA, PAPA, ESTER
openaire   +1 more source