Rapid evaluation of arsenic contamination in paddy soils using field portable X-ray fluorescence spectrometry

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	Rapid evaluation of arsenic contamination in paddy soils using field portable X-ray fluorescence spectrometry
	Chen, Zheng; Liang, Jian-Hong; Liu, Pan-Pan; Sun, Guo-Xin; Li, Hong
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES
	2018-02-01
卷号	64 页码:345-351
关键词	XRF Arsenic Risk evaluation Rice roots Rhizosphere soils Iron plaque
ISSN号	1001-0742
文献子类	Article
英文摘要	Arsenic (As) in paddy fields is deteriorating food security and human health through rice ingestion. Rice is the dominant food source of arsenic exposure to half of the world's population. Therefore, an in situ effective method for As risk evaluation in paddy soil is strongly needed to avoid As exposure through rice ingestion. Herein, we developed a rapid analytical methodology for determination of As in plant tissues using field portable X-ray fluorescence spectrometry (FP-XRF). This method was applied to rice roots in order to evaluate the As contamination in paddy soils. The results showed that rice roots with iron plaques were superior to rhizosphere soils for generating FP-XRF signals, especially for field sites with As concentrations lower than the soil detection limit of FP-XRF (30.0 mg/kg). Moreover, the strong linear relationships of As concentrations between the rice roots and corresponding leaves and grains proved that the rice root, rather than the soil, is a better predictor of As concentrations in rice grains. The research provides an efficient As monitoring method for As contaminated paddy fields by using wetland plant roots with iron plaques and XRF-based analytical techniques. (c) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40638]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Chen, Zheng,Liang, Jian-Hong,Liu, Pan-Pan,et al. Rapid evaluation of arsenic contamination in paddy soils using field portable X-ray fluorescence spectrometry[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2018,64:345-351.
APA	Chen, Zheng,Liang, Jian-Hong,Liu, Pan-Pan,Sun, Guo-Xin,&Li, Hong.(2018).Rapid evaluation of arsenic contamination in paddy soils using field portable X-ray fluorescence spectrometry.JOURNAL OF ENVIRONMENTAL SCIENCES,64,345-351.
MLA	Chen, Zheng,et al."Rapid evaluation of arsenic contamination in paddy soils using field portable X-ray fluorescence spectrometry".JOURNAL OF ENVIRONMENTAL SCIENCES 64(2018):345-351.