Document Detail


Influence of nutrient level on biodegradation and bioconcentration of phthalate acid esters in Chlorella vulgaris.
MedLine Citation:
PMID:  17182389     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Influences of major nutrients (N, P) on the biodegradation and bioconcentration of dibutyl phthalate (DBP) and di-2-ethylexyl phthalate (DEHP) by Chlorella vulgaris in lake water were investigated in this work. Our study demonstrated that nutrient addition obviously influenced biodegradation rate constants and apparent bioconcentration factors (BCFs) of DBP and DEHP in Chlorella vulgaris. The effects of P addition on biodegradation were less pronounced than the effects of N addition as a result of N-limitation status of phytoplankton in the lake water, while addition of both N and P more greatly affected biodegradation than addition of N or P. BCFs of DBP and DEHP decreased with increasing algal exudate as measured by dissolved organic carbon (DOC) and a strong correlation between BCFs and DOC was obtained. The results indicate that DOC plays an important role in the bioconcentration of DBP and DEHP.
Authors:
Jie Chi; Bin Li; Qian Y Wang; Hua Liu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering     Volume:  42     ISSN:  1093-4529     ISO Abbreviation:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2006-12-21     Completed Date:  2007-04-02     Revised Date:  2009-08-14    
Medline Journal Info:
Nlm Unique ID:  9812551     Medline TA:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Country:  United States    
Other Details:
Languages:  eng     Pagination:  179-83     Citation Subset:  IM    
Affiliation:
School of Environmental Science and Engineering, Tianjin University, Tianjin, China. cjiechi@yahoo.com
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MeSH Terms
Descriptor/Qualifier:
Biodegradation, Environmental
Chlorella vulgaris / metabolism*
Dibutyl Phthalate / analysis,  metabolism
Diethylhexyl Phthalate / analysis,  metabolism
Environmental Monitoring / methods
Fresh Water / analysis
Phthalic Acids / analysis,  metabolism*
Chemical
Reg. No./Substance:
0/Phthalic Acids; 117-81-7/Diethylhexyl Phthalate; 84-74-2/Dibutyl Phthalate; 88-99-3/phthalic acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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