Results 131 to 140 of about 3,695 (167)

ESTIMATING AND TESTING BIOCONCENTRATION FACTORS

Environmental Toxicology and Chemistry, 2000
Abstract Bioconcentration factors (BCFs) are commonly calculated to represent the equilibrium concentration of a substance in an organism relative to environmental concentrations of the same substance. The BCF is derived from parameters estimated in uptake and elimination experiments and is presented as a single value without error ...
A John Bailer, Sean E Walker, Kyle J Venis   +2 more
openaire   +1 more source

Surfactant bioconcentration - a critical review

Chemosphere, 1994
Bioconcentration data for surfactants have been collected and critically reviewed. Twenty-two references report whole body bioconcentration data. Most of these data are inappropriate to quantitatively describe the bioconcentration of surfactants because the most frequently used analytical method, LSC without prior chromatographic separation of ...
J, Tolls, P, Kloepper-Sams, D T, Sijm
openaire   +2 more sources

Bioconcentration study of Xinjunan in zebrafish

Environmental Monitoring and Assessment, 2011
An experiment was carried out to determine the acute toxicity and bioconcentration factor of Xinjunan in zebrafish under semi-static test method. The result of the 96-h LC(50) values (0.31 mg/L), at 95% confidence limit, revealed that Xinjunan was highly toxic.
Qiang, Li, Shanshan, Chen, Shengrui, Zhang, Chongjiu, Li, Jizhong, Zhou, Xiaodong, Ma, Xuefeng, Li   +6 more
openaire   +2 more sources

Advances in bioconcentration prediction

Chemosphere, 1988
Abstract A reexamination of the log-log relationship between the bioconcentration factor in fish (BCF) and different types of POW data for a set of 49 compounds of diverse chemical range reveals that the overall correlation between log BCF and log POW is only moderate but gets significantly improved by restriction to the subset of CHCs and PAHs ...
G. Schüürmann, W. Klein
openaire   +1 more source

Pesticide Transport and Bioconcentration Model

Journal of the Environmental Engineering Division, 1981
A pesticide transport and bioconcentration model has been developed and applied to Coralville Reservoir, Iowa, for the insecticide dieldrin. Two spatial configurations, a two compartment and an eight compartment model, provided essentially identical results.
Jerald L. Schnoor, Drew C. McAvoy
openaire   +1 more source

Bioconcentration of lipophilic organochlorines in ovine dentine

Archives of Oral Biology, 2001
The bioconcentration of lipophilic organochlorines in ovine dentine in comparison to adipose tissue was examined. Sheep were given a single dose (0.2-1.4 mg/kg body wt) of individual polychlorobiphenyl (PCB) congeners (tetrachlorobiphenyls IUPAC Nos. 54 and 80, and hexachlorobiphenyls IUPAC Nos.
J, Jan, M, Vrecl, A, Pogacnik, D, Gaspersic   +3 more
openaire   +2 more sources

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

Bioconcentration of Organic Contaminants in Daphnia Resting Eggs

Environmental Science & Technology, 2013
Organic contaminants detected in sediments from Lake Greifensee and other compounds falling in the log Dow range from 1 to 7 were selected to study the bioconcentration of organic contaminants in sediments in Daphnia resting eggs (ephippia). Our results show that octocrylene, tonalide, triclocarban, and other personal care products, along with ...
Chiaia-Hernandez, Ashauer Roman, Moest Markus, Hollingshaus Tobias, Jeon Junho, Spaak Piet, Hollender Juliane   +6 more
openaire   +2 more sources

Bioconcentration of tetrachlorobenzene in marine algae

Chinese Journal of Oceanology and Limnology, 1997
Bioconcentration of tetrachlorobenzene (TeCB) inChlorella marine, Nannochloropsis oculata, Pyramidomonas sp.,Platymonas subcordiformis, andPhaeodactylum tricornutum; and toxicity of TeCB to the marine algae were tested. Values of bioconcentration potential parameters, including uptake rate constantk1, elimination rate constantk2 and bioconcentration ...
Wang Xiu-lin, Ma Yan-jun, Cheng Gang, Yu Wei-jun, Zhang Li-jun   +4 more
openaire   +1 more source

Bioconcentration of heavy metals by plants

Current Opinion in Biotechnology, 1994
Abstract Certain plants can concentrate essential and non-essential heavy metals in their roots and shoots to levels far exceeding those present in the soil. Metal-accumulating plant species are invariably restricted to metalliferous soils found in different regions around the world.
Ilya Raskin, PBA Nanda Kumar, Slavik Dushenkov, David E Salt   +3 more
openaire   +1 more source