2011 Fiscal Year Final Research Report

Evaluation of the effect of co-existing dissolved organic matters on the bioavailability of hydrophobic organic compounds

Research Project

Project/Area Number	22710034
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Environmental impact assessment/Environmental policy
Research Institution	Center for Environmental Science in Saitama
Principal Investigator	IKEDA Kazuhiro 埼玉県環境科学国際センター, 水環境担当, 主任 (60422987)
Project Period (FY)	2010 – 2011
Keywords	生物利用性 / 溶存有機物質 / 疎水性有機汚染物質 / 医薬品 / 多環式芳香族炭化水素 / モデル細胞膜 / 収着
Research Abstract	The effect of co-existing dissolved organic matters on the bioavailability of hydrophobic organic compounds was evaluated using artificial cell membrane as surrogate of aquatic organisms in order to figure out toxicity reduction with dissolved organic matters. The bioavailability of pyrene, 1-hydoxypyrene, 1-aminopyrene and fluoxetine were decreased with their sorption to dissolved organic matters. The largest reduction was 1.1% in Arakawa river and 5.2% in sewage treatment plant effluent, respectively. The sorption coefficients of pyrene to them were comparable to colored river in the United States.

(3 results)