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Bioaccumulation

About: Bioaccumulation is a research topic. Over the lifetime, 7112 publications have been published within this topic receiving 208953 citations. The topic is also known as: bioakumulace.


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Journal ArticleDOI
TL;DR: Normalization of BAFs to the phospholipid fraction reduced species variability for the more hydrophobic congeners, supporting the hypothesismore » that these compounds have restricted membrane permeability.
Abstract: Experiments were conducted to compare the bioaccumulation of hydrophobic compounds among different phytoplankton divisions, and to evaluate the factors that affect species-specific differences. Unialgal batch cultures of Selenastrum capricornutum, Anabaena sp., and Synedra sp. were exposed to 40 PCB congeners at 11 C for 40 d. PCBs selected for this study represented all 10 homologs, different substitution patterns, and a wide range of physical-chemical properties representative of compounds known to bioaccumulate in aquatic organisms. Congener-specific partitioning into the algal phase over time was investigated. Species differences were observed in the rate and magnitude of accumulation. For all species, a rapid association of PCBs with the algal phase was followed by a slower partitioning from the media to the algae, which continued for several days. Bioaccumulation factors (BAFs) could be predicted from K[sub ow] for PCB congeners with log K[sub ow] values < 6.0, whereas no such correlation was found for the more hydrophobic congeners. Normalization of BAFs to total lipid or glycolipid content reduced some of the variability between species for the less hydrophobic congeners, but not for the more hydrophobic congeners. Normalization of BAFs to the phospholipid fraction reduced species variability for the more hydrophobic congeners, supporting the hypothesismore » that these compounds have restricted membrane permeability.« less

139 citations

Journal ArticleDOI
TL;DR: The effective concentrations of copper on the inhibition of the growth of Scenedesmus obliquus, Chlorella pyrenoidosa and Closterium lunula at 96 h (96 h EC50) were determined to be 50, 68 and 200 microg/l, respectively, which indicates that smaller microalgae with low 96H EC50 values are more efficient in removing Cu from wastewater.

139 citations

Journal ArticleDOI
TL;DR: Eight copper resistant Pseudomonas strains previously isolated from Torch Lake sediment showed high levels of resistance to zinc, cesium, lead, arsenate and mercury, and were capable of bioaccumulation of multiple metals and solubilization of copper.

138 citations

Journal ArticleDOI
TL;DR: It is demonstrated that mussels readily bioaccumulate PPCPs, in a manner consistent with expectations based upon BCF models and the chemical characteristics of each compound.

138 citations

Journal ArticleDOI
TL;DR: Results suggest trace metal recycling due to reductive dissolution under suboxic conditions at the sediment surface resulting in trace metal release to the water column and adsorption onto suspended particles.

138 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023949
20222,090
2021463
2020445
2019416
2018415