| PFOA对土壤酶活性的影响 |
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| 引用本文： | ZHANG Wei,LIN Kuang-Fei,YANG Sha-Sh,ZHANG Meng. PFOA对土壤酶活性的影响[J]. 土壤圈, 2013, 23(1): 120-127. DOI: 10.1016/S1002-0160(12)60087-3 |
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| 作者姓名： | ZHANG Wei LIN Kuang-Fei YANG Sha-Sh ZHANG Meng |
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| 作者单位： | School of Resource and Environmental Engineering, East China University of Science and Technology;State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process;Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology |
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| 基金项目： | Supported by the National Natural Science Foundation of China (No. 40901148);the Science and Technology Committee Research Program of Shanghai, China (No. 12DZ0502700);the National Environmental Protection Public Welfare Science and Technology Research Program of China (No. 200909089);the National Forestry Public Welfare Science and Technology Research Program of China (No. 201104088);the Fundamental Research Funds for the Central Universities of China (No. WB0911011) |
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| 摘 要： | 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 EC 10 , 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.
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| 关 键 词： | activity inhibition biomarker dose-response curve ecological risk regression equation |
| 收稿时间： | 2012-07-28 |
Enzyme activities in perfluorooctanoic acid (PFOA)-polluted soils |
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| ZHANG Wei,LIN Kuang-Fei,YANG Sha-Sha and ZHANG Meng. Enzyme activities in perfluorooctanoic acid (PFOA)-polluted soils[J]. Pedosphere, 2013, 23(1): 120-127. DOI: 10.1016/S1002-0160(12)60087-3 |
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| Authors: | ZHANG Wei LIN Kuang-Fei YANG Sha-Sha ZHANG Meng |
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| Affiliation: | 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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| Abstract: | 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. |
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| Keywords: | activity inhibition biomarker dose-response curve ecological risk regression equation |
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