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2014 Fiscal Year Final Research Report

The Effect of Sorption and Biodegradation of Humic Acids on Toxicity of Benzo[a]pyrene

Research Project

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Project/Area Number 24710014
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Environmental dynamic analysis
Research InstitutionYamaguchi University (2013-2014)
Minami Kyusyu University (2012)

Principal Investigator

YANAGI Yukiko  山口大学, 農学部, 助教 (20412819)

Project Period (FY) 2012-04-01 – 2015-03-31
Keywords腐植酸 / ベンゾ[a]ピレン / 急性毒性 / 収着 / 生分解
Outline of Final Research Achievements

The effect of several soil humic acids on the sorption affinity and the acute toxicity to algae of benzo[a]pyrene (BaP) were examined. The sorption amount increased and the acute toxicity decreased with increasing concentration of the humic acids. It was suggested that the decreasing in the acute toxicity of BaP depended on the sorption of the BaP to humic acids. After the BaP adsorbing to the humic acid had been degraded by laccase, the acute toxicity of it was significantly lower value than that of BaP alone degraded by laccase. It was suggested that the BaP interacting with humic acid showed the different toxicity dynamics between BaP alone during biodegradation.

Free Research Field

土壌化学

URL: 

Published: 2016-06-03  

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