2014 Fiscal Year Final Research Report
The Effect of Sorption and Biodegradation of Humic Acids on Toxicity of Benzo[a]pyrene
| Project/Area Number |
24710014
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Yamaguchi University (2013-2014)
Minami Kyusyu University (2012) |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 腐植酸 / ベンゾ[a]ピレン / 急性毒性 / 収着 / 生分解 |
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| 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.
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| Free Research Field |
土壌化学
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