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Influence of initial pesticide concentrations in water on chlorpyrifos toxicity and removal by Iris pseudacorus

文献类型： 外文期刊

作者： Wang, Qinghai 1 ; Yang, Juan 1 ; Li, Cui 1 ; Xiao, Bo 1 ; Que, Xiaoe 3 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Res & Dev Ctr Grass & Environm, Beijing 100097, Peoples R China

2.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan 430070, Hubei Province, Peoples R China

3.Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100091, Peoples R China

关键词： Chlorpyrifos pollution;Emergent hydrophyte;Phytoremediation

期刊名称：WATER SCIENCE AND TECHNOLOGY （ 影响因子：1.915； 五年影响因子：2.054 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： For understanding the influence of initial concentrations of pesticides in the water body on removal efficiency of the contaminant by aquatic plants, one hydroponics experiment was used to investigate the influence of initial concentration (1-16 mg L~(-1)) on toxicity and chlorpyrifos removal potential of Iris pseudacorus for 20 days under greenhouse conditions. An increased sensitivity to and reduced removal rate for chlorpyrifos were observed with increasing chlorpyrifos concentration. The relative growth rate (RGR) of I. pseudacorus was significantly inhibited in the presence of 4, 8 and 16 mg L~(-1) chlorpyrifos, and a negative relationship was also found between RGR and initial pesticide concentration. The half-life of chlorpyrifos was shortened in the hydroponic system with plants, indicating that I. pseudacorus accelerated chlorpyrifos removal from water. But the contribution of the plant to chlorpyrifos removal in the hydroponic phytoremediation system decreased with the increase of initial concentration of chlorpyrifos. The results also indicated that I. pseudacorus can efficiently eliminate chlorpyrifos and may ultimately serve as phytoremediation agents in the natural water body.

  • 相关文献

[1]Phytoremediation of atrazine by three emergent hydrophytes in a hydroponic system. Wang, Qinghai,Zhang, Wei,Li, Cui,Xiao, Bo.

[2]Influence of initial concentration of chlorpyrifos in aquatic environment on removal by softstem bullrush (Scirpus tabernaemontani Gmel.). Qinghai Wang,Juan Yang,Cui Li,Bo Xiao,Juying Wu. 2011

[3]Antioxidative systems, metal ion homeostasis and cadmium distribution in Iris lactea exposed to cadmium stress. Guo, Qiang,Meng, Lin,Zhang, Ya-Nan,Mao, Pei-Chun,Tian, Xiao-Xia,Li, Shan-Shan,Zhang, Lin. 2017

[4]An assessment of Agropyron cristatum tolerance to cadmium contaminated soil. Guo, Q.,Meng, L.,Mao, P. C.,Tian, X. X.. 2014

[5]Influence of initial concentration of chlorpyrifos in aquatic environment on removal by softstem bullrush (Scirpus tabernaemontani Gmel.). Wang, Qinghai,Yang, Juan,Li, Cui,Xiao, Bo,Wu, Juying. 2012

[6]Phytoremediation of chlorpyrifos in aqueous system by riverine macrophyte, Acorus calamus: toxicity and removal rate. Wang, Qinghai,Li, Cui,Zheng, Ruilun,Que, Xiaoe.

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