NDLI: The effects of humic acid on the uptake and depuration of fullerene aqueous suspensions in two aquatic organisms.

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The effects of humic acid on the uptake and depuration of fullerene aqueous suspensions in two aquatic organisms.

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The effects of humic acid on the uptake and depuration of fullerene aqueous suspensions in two aquatic organisms.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Chen, Qiqing Yin, Daqiang Li, Jing Hu, Xialin
Description	Country affiliation: China Author Affiliation: Chen Q ( State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China.)
Abstract	The authors investigated the uptake and depuration of fullerene aqueous suspensions (nC(60)) in 2 aquatic organisms: Daphnia magna and zebrafish. The effects of humic acid were examined to elucidate its possible mechanisms in the aquatic environment. The uptake was concentration-dependent in both organisms, and the maximum uptake concentration of nC(60) in Daphnia (2268 ± 158 mg/kg) was approximately 1 order of magnitude higher than that in zebrafish (222 ± 30 mg/kg) because of the larger gut volume ratio to the mass of Daphnia or its high uptake efficiency. Humic acid reduced the uptake of nC(60) in Daphnia and zebrafish as a result of the size effect and the polarity alternation of nC(60). The depuration patterns were rapid for Daphnia and slow for zebrafish, and the differences were most likely the result of different water exchange frequencies between organisms. The remaining nC(60) percentages were approximately 20% for Daphnia and 30% for zebrafish after 48-h depuration, suggesting that a large nC(60) burden still existed for both aquatic organisms and that there is a need for further studies on the potential for trophic transfer.
File Format	HTM / HTML
ISSN	07307268
Issue Number	5
Volume Number	33
e-ISSN	15528618
Journal	Environmental Toxicology and Chemistry
Language	English
Publisher	Wiley
Publisher Date	2014-05-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Water Pollutants, Chemical Research Support, Non-u.s. Gov't Discipline Environmental Health Discipline Toxicology Zebrafish Metabolism Journal Article Animals Daphnia Fullerenes Discipline Chemistry Pharmacokinetics Suspensions Humic Substances
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis

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