Enzyme Activities in Perfluorooctanoic Acid (PFOA)-Polluted Soils

ZHANG Wei; LIN Kuang-Fei; YANG Sha-Sha; ZHANG Meng

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Enzyme Activities in Perfluorooctanoic Acid (PFOA)-Polluted Soils

机译：全氟辛酸（PFOA）污染土壤中的酶活性

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Perfluorooctanoic acid (PFOA) is a popular additive of the chemical industry; its effect on activities of important soil enzymes is not well understood.A laboratory incubation experiment was carried out to analyze the PFOA-induced changes in soil urease,catalase,and phosphatase activities.During the entire incubation period,the activities of the three soil enzymes generally declined with increasing PFOA concentration,following certain dose-response relationships.The values of EC10,the contaminant concentration at which the biological activity is inhibited by 10％,of PFOA for the soil enzyme activity calculated from the modeling equation of the respective dose-response curve suggested a sensitivity order of phosphatase ＞ catalase ＞ urease.The effect of PFOA on soil enzyme activities provided a basic understanding of the eco-toxicological effect of PFOA in the environment.Results of this study supported using soil phosphatase as a convenient biomarker for ecological risk assessment of PFOA-polluted soils.

机译：全氟辛酸（PFOA）是化学工业中流行的添加剂。它对重要的土壤酶活性的影响尚不十分清楚。进行了实验室培养实验，分析了PFOA诱导的土壤脲酶，过氧化氢酶和磷酸酶活性的变化。在整个培养过程中，三种土壤酶的活性通常会随着PFOA浓度的增加而下降，并遵循一定的剂量反应关系。根据相应剂量的建模方程式计算出的EC10值，即土壤酶活性的PFOA的生物活性被抑制10％的污染物浓度-响应曲线表明磷酸酶＞过氧化氢酶＞脲酶的敏感性顺序。全氟辛酸对土壤酶活性的影响提供了对全氟辛酸在环境中生态毒理作用的基本认识。本研究结果支持使用土壤磷酸酶作为方便的生物标志物PFOA污染土壤的生态风险评估。

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《土壤圈（英文版）》 |2013年第1期|120-127|共8页
作者
ZHANG Wei; LIN Kuang-Fei; YANG Sha-Sha; ZHANG Meng;
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作者单位

School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237,China;

State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, Shanghai 200237,China;

Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Shanghai 200237,China;

School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237,China;

State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, Shanghai 200237,China;

Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Shanghai 200237,China;

School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237,China;

State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, Shanghai 200237,China;

Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Shanghai 200237,China;

School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237,China;

State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, Shanghai 200237,China;

Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Shanghai 200237,China;

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Enzyme Activities in Perfluorooctanoic Acid (PFOA)-Polluted Soils

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