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Izdebska A, Budzyńska S, Bierla K. Unveiling New Arsenic Compounds in Plants via Tailored 2D-RP-HPLC Separation with ICP and ESI MS Detection. Molecules 2024; 29:3055. [PMID: 38999006 PMCID: PMC11243089 DOI: 10.3390/molecules29133055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/21/2024] [Accepted: 06/24/2024] [Indexed: 07/14/2024] Open
Abstract
Arsenic (As) speciation analysis is scientifically relevant due to the pivotal role the As chemical form plays in toxicity, which, in turn, directly influences the effect it has on the environment. The objective of this study was to develop and optimize a method tailored for studying As compounds in plant samples. Different extraction procedures and HPLC methods were explored to assess their efficiency, determine mass balance, and improve the resolution of compounds in the chromatograms. Conventionally applied anion-exchange chromatography facilitated the separation of well-documented As compounds in the extracts corresponding to 19 to 82% of As present in extracts. To gain insight into compounds which remain undetectable by anion chromatography (18 to 81% of As in the extracts), but still possibly metabolically relevant, we explored an alternative chromatographic approach. The procedure of sample purification and preconcentration through solid-phase extraction, facilitating the detection of those minor As compounds, was developed. The system was further refined to achieve an online 2D-RP-HPLC system, which was employed to analyze the extracts more comprehensively with ICP and ESI MS. Using this newly developed method, As(III)-phytochelatins, along with other arseno-thio-compounds, were detected and identified in extracts derived from the tree roots of seedlings grown in the presence of As(III) and As(V), and a group of arseno lipids was detected in the roots of plants exposed to As(V).
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Affiliation(s)
- Aleksandra Izdebska
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM UMR 5254, Helioparc, 64053 Pau, France
| | - Sylwia Budzyńska
- Department of Chemistry, Faculty of Forestry and Wood Technology, Poznań University of Life Sciences, Wojska Polskiego 75, 60-625 Poznań, Poland
| | - Katarzyna Bierla
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM UMR 5254, Helioparc, 64053 Pau, France
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2
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Langasco I, Barracu F, Deroma MA, López-Sánchez JF, Mara A, Meloni P, Pilo MI, Estrugo ÀS, Sanna G, Spano N, Spanu A. Assessment and validation of ICP-MS and IC-ICP-MS methods for the determination of total, extracted and speciated arsenic. Application to samples from a soil-rice system at varying the irrigation method. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 302:114105. [PMID: 34801866 DOI: 10.1016/j.jenvman.2021.114105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 10/26/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
Food is the major route of arsenic (As) intake for humans, and rice is the staple food for more than half of the world's population. Unfortunately, rice bioaccumulates large amounts of As from the paddy field, and the toxicity of this element in the kernel is closely linked to its chemical form. Therefore, it is of the utmost importance to have access to an integrated set of analytical methods, capable of measuring the concentration of As in its various chemical forms in soil and rice. Hence, the principal aim of this study was to assess and validate a group of inductively coupled plasma - mass spectrometry (ICP-MS) and IC-ICP-MS (IC, Ionic Chromatography) methods designed to measure the amount of the total or extracted As and its main chemical species (As(III), As(V), monomethylarsonic acid, MMA, and dimethylarsinic acid, DMA) in flours of rice grain and in soils. Great attention has been given to the assessment and the optimization of extraction methods of As species from these matrices. No appreciable interconversion among As species has been observed using an aqueous solution 1 mol dm-3 of phosphoric acid and 0.5 mol dm-3 of L (+)-ascorbic acid for the extraction from soils, and an aqueous solution 0.2% (w/v) of nitric acid for the extraction from rice flour. Validation has been successfully accomplished in terms of limit of detection, limit of quantification, linearity and accuracy. In addition to many certified reference materials, these methods have been tested on real samples of soils and rice grains of the Aleramo genotype obtained through traditional or intermittent irrigation methods. Data obtained revealed the critical role of the intermittent irrigation methods in determining the nature and the amount of the As chemical species in rice grains as well as in soils. As(V) is the only species found in soil irrigated by sprinkling, while the most toxic As(III) dominates in soil irrigated by continuous flooding. On the other hand, the most abundant species found in continuously flooded Aleramo rice grains are As(III) and - mostly - DMA, whereas As(V), less toxic than As(III), represents 60% of the total inorganic compounds measured in sprinkler-irrigated rice. Lastly, the total amount of As measured in this rice is 3.8% of that measured in rice irrigated by continuous flooding.
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Affiliation(s)
- Ilaria Langasco
- Dipartimento di Chimica e Farmacia, Università Degli Studi di Sassari, Via Vienna, 2, I-07100, Sassari, Italy
| | - Francesco Barracu
- Dipartimento di Agraria, Università Degli Studi di Sassari, Viale Italia, 39A, I-07100, Sassari, Italy
| | - Mario Antonello Deroma
- Dipartimento di Agraria, Università Degli Studi di Sassari, Viale Italia, 39A, I-07100, Sassari, Italy
| | - José Fermín López-Sánchez
- Secció de Química Analítica, Facultat de Química, Universitat de Barcelona, Martí I Franquès, 1, E-08028, Barcelona, Spain
| | - Andrea Mara
- Dipartimento di Chimica e Farmacia, Università Degli Studi di Sassari, Via Vienna, 2, I-07100, Sassari, Italy
| | - Paola Meloni
- Dipartimento di Chimica e Farmacia, Università Degli Studi di Sassari, Via Vienna, 2, I-07100, Sassari, Italy
| | - Maria Itria Pilo
- Dipartimento di Chimica e Farmacia, Università Degli Studi di Sassari, Via Vienna, 2, I-07100, Sassari, Italy
| | - Àngels Sahuquillo Estrugo
- Secció de Química Analítica, Facultat de Química, Universitat de Barcelona, Martí I Franquès, 1, E-08028, Barcelona, Spain
| | - Gavino Sanna
- Dipartimento di Chimica e Farmacia, Università Degli Studi di Sassari, Via Vienna, 2, I-07100, Sassari, Italy.
| | - Nadia Spano
- Dipartimento di Chimica e Farmacia, Università Degli Studi di Sassari, Via Vienna, 2, I-07100, Sassari, Italy
| | - Antonino Spanu
- Dipartimento di Agraria, Università Degli Studi di Sassari, Viale Italia, 39A, I-07100, Sassari, Italy
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Shu L, Ng JC, Tang W, Zhao Y, Sun L, Zhang H. Assessment methodology applied to arsenic pollution in lake sediments combining static and dynamic processes. CHEMOSPHERE 2021; 277:130260. [PMID: 34384176 DOI: 10.1016/j.chemosphere.2021.130260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 06/13/2023]
Abstract
The fraction transformation from stable to mobile forms in sediments is continuous, slow, and spontaneous chain reactions causing static risks to the aquatic system. However, this process may change into abrupt, rapid, and dynamic paths when certain physicochemical conditions changed. Using the Delayed Geochemical Hazard (DGH) model, comprehensive methods combing both static and dynamic risk assessment were therefore conducted to evaluate the aforementioned processes. By applying these methods, arsenic (As) pollution in surface sediments of the Baiyangdian Lake (BYD Lake) was investigated thoroughly as a case study area. The results showed that the total As concentrations in those sediment samples ranged from 4.87 to 17.94 mg/kg, with an average of 8.75 mg/kg. In a fraction, Fe and Mn were observed to pose effects on the surface-adsorbed (AsS) and residual fractions (AsR) with the coefficient analysis. The static risk assessment showed that both the contamination and ecological risk are at a low level in the total content but a low to moderate risk in the fraction. The dynamic risk assessment posted the potential transformation paths of As in the sediments, indicating a trend of potential DGH burst in 45.24%-78.57% of the BYD Lake. In summary, this study provides a methodology for the risk assessment of arsenic that may extend to other heavy metal(loid)s combining static and dynamic processes in sediments.
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Affiliation(s)
- Limin Shu
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jack C Ng
- The University of Queensland, Queensland Alliance for Environmental Health Sciences, Brisbane, QLD, 4102, Australia
| | - Wenzhong Tang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yu Zhao
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liu Sun
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hong Zhang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
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4
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Arsenite phytoextraction and its influence on selected nutritional elements in one-year-old tree species. Microchem J 2017. [DOI: 10.1016/j.microc.2017.04.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Wan X, Dong H, Feng L, Lin Z, Luo Q. Comparison of three sequential extraction procedures for arsenic fractionation in highly polluted sites. CHEMOSPHERE 2017; 178:402-410. [PMID: 28342372 DOI: 10.1016/j.chemosphere.2017.03.078] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 03/13/2017] [Accepted: 03/19/2017] [Indexed: 06/06/2023]
Abstract
Three sequential extraction procedures (SEPs) including Tessier, Rauret, and Shiowatana SEPs, were compared for arsenic fractionation using highly polluted soils. In the definition context of exchangeable, reducible, oxidizable and residual fractions, with similar arsenic recovery and reproducibility, Tessier and Rauret SEPs were comparable to each other, whereas Shiowatana SEP showed higher extraction efficiency in all the first three arsenic fractions, although it might overestimate the reducible arsenic. Pot experiment indicated three SEPs all could provide an estimation of the most bioavailable arsenic fraction, and the application of Shiowatana SEP should be preferred. Accordingly, a case study with Shiowatana SEP for a site near a realgar mine area is conducted. The results show that although arsenic in this area presents predominantly in the stable fractions, the sum of most bioavailable fractions was accounted around 11% of total arsenic, and moreover, about another 10% of the total arsenic, the fourth fraction in Shiowatana SEP is likely to be transferred into bioavailable species under suitable conditions, such as strong acid impact, revealing a real major risk source being formed. The study indicated that Shiowatana should be more suitable for arsenic fractionation to provide valuable information in the framework of risk assessment.
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Affiliation(s)
- Xiang Wan
- Department of Environmental Sciences and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Haochen Dong
- Department of Environmental Sciences and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Liu Feng
- Department of Environmental Sciences and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
| | - Zhijia Lin
- Hunan Institute of Geological Survey, Changsha, Hunan, 410116, PR China
| | - Qiuchen Luo
- Department of Environmental Sciences and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
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6
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Budzyńska S, Mleczek M, Goliński P, Rutkowski P, Niedzielski P. The influence of As forms in substrate on the phytoextraction of this metalloid in Ulmus laevis Pall organs – Pot experiment. Microchem J 2017. [DOI: 10.1016/j.microc.2017.01.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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7
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Sediment biomarker, bacterial community characterization of high arsenic aquifers in Jianghan Plain, China. Sci Rep 2017; 7:42037. [PMID: 28165031 PMCID: PMC5292745 DOI: 10.1038/srep42037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 01/03/2017] [Indexed: 11/08/2022] Open
Abstract
Representative biomarkers (e.g., n-alkanes), diversity and microbial community in the aquifers contaminated by high concentration of arsenic (As) in different sediment depth (0-30 m) in Jianghan Plain, Hubei, China, were analyzed to investigate the potential mechanism of As enrichment in groundwater. The concentration of As was abundant in top soil and sand, but not in clay. The analysis of the distribution of n-alkanes, CPI values, and wax to total n-alkane ratio (Wax(n)%) indicated that the organic matter (OM) from fresh terrestrial plants were abundant in the shallow sediment. However, n-alkanes have suffered from significant biodegradation from the depth of 16 m to 30 m. The deposition of fresh terrestrial derived organic matters may facilitate the release of As from sediment to groundwater in the sediment of 0-16 m. However, the petroleum derived organic matters may do the favor to the release of As in the deeper section of borehole (16 m to 30 m). The 16S rRNA gene sequences identification indicated that Acidobacteria, Actinomycetes and Hydrogenophaga are abundant in the sediments with high arsenic. Therefore, microbes and organic matters from different sources may play important roles in arsenic mobilization in the aquifers of the study area.
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Hsu KC, Hsieh JR, Chen YC, Hsu PF, Hung CC, Huang YL. A microdialysis-based analytical system for dynamic monitoring of arsenic transformation under microbial activity. Analyst 2017; 142:4737-4743. [DOI: 10.1039/c7an01399j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, a microdialysis (MD) technique was combined with high-performance liquid chromatography/inductively coupled plasma mass spectrometry (HPLC-ICP-MS) for continuous monitoring of the dynamic variations of arsenic species in a microbe-inoculated culture broth.
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Affiliation(s)
- Keng-Chang Hsu
- Department of Medical Laboratory Science and Biotechnology
- College of Health Sciences
- Kaohsiung Medical University
- Taiwan
| | - Jing-Ru Hsieh
- Department of Medical Laboratory Science and Biotechnology
- College of Health Sciences
- Kaohsiung Medical University
- Taiwan
| | - Ya-Ching Chen
- Department of Laboratory Medicine
- Kaohsiung Medical University Hospital
- Kaohsiung Medical University
- Taiwan
| | - Pi-Fu Hsu
- Department of Medical Laboratory Science and Biotechnology
- College of Health Sciences
- Kaohsiung Medical University
- Taiwan
| | - Chih-Chang Hung
- Research Center of Environmental Medicine
- Kaohsiung Medical University
- Taiwan
| | - Yeou-Lih Huang
- Department of Medical Laboratory Science and Biotechnology
- College of Health Sciences
- Kaohsiung Medical University
- Taiwan
- Department of Laboratory Medicine
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9
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Wang Z, Cui Z, Liu L, Ma Q, Xu X. Toxicological and biochemical responses of the earthworm Eisenia fetida exposed to contaminated soil: Effects of arsenic species. CHEMOSPHERE 2016; 154:161-170. [PMID: 27045633 DOI: 10.1016/j.chemosphere.2016.03.070] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 03/14/2016] [Accepted: 03/16/2016] [Indexed: 06/05/2023]
Abstract
Arsenic is a pollutant that can be detected in different chemical forms in soil. However, the toxicological effects of different arsenic species on organisms have received little attention. In this study, we exposed earthworms Eisenia fetida to artificial soils contaminated by arsenite [As(III)], arsenate [As(V)], monomethylarsonate (MMA) and dimethylarsinate (DMA) for 28 and 56 days. Three biomarkers including lipid peroxidation (LPO), metallothioneins (MTs) and lysosomal membrane stability (LMS) were analyzed in the organisms. In addition, the contents of total arsenic and arsenic species in earthworms were also determined to investigate the effects of bioaccumulation and biotransformation of arsenic on biomarkers and to evaluate the dose-response relationships. The results showed that the relationship between the three biomarkers and the two inorganic arsenic species were dose dependent, and the correlation levels between the biomarkers and As(III) were higher than that between the biomarkers and As(V). Trivalent arsenic species shows more toxicity than pentavalent arsenic on the earthworms at molecular and subcellular level, including oxidative damage, MTs induction and lysosomal membrane damage. The toxicity of MMA and DMA was lower than inorganic arsenic species. However, the occurrence of demethylation of organic arsenics could lead to the generation of highly toxic inorganic arsenics and induce adverse effects on organisms. The biotransformation of highly toxic inorganic arsenics to the less toxic organic species in the earthworms was also validated in this study. The biomarker responses of the earthworm to different arsenic species found in this study could be helpful in future environment monitoring programs.
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Affiliation(s)
- Zhifeng Wang
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, PR China.
| | - Zhaojie Cui
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, PR China.
| | - Lei Liu
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, PR China
| | - Qianchi Ma
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, PR China
| | - Xiaoming Xu
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, PR China; School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, PR China
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10
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Rehman ZU, Khan S, Qin K, Brusseau ML, Shah MT, Din I. Quantification of inorganic arsenic exposure and cancer risk via consumption of vegetables in southern selected districts of Pakistan. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 550:321-329. [PMID: 26820935 PMCID: PMC4833018 DOI: 10.1016/j.scitotenv.2016.01.094] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 01/16/2016] [Accepted: 01/16/2016] [Indexed: 05/19/2023]
Abstract
Human exposures to arsenic (As) through different pathways (dietary and non-dietary) are considered to be one of the primary worldwide environmental health risks to humans. This study was conducted to investigate the presence of As in soil and vegetable samples collected from agricultural lands located in selected southern districts of Khyber Pakhtunkhwa (KPK) Province, Pakistan. We examined the concentrations of total arsenic (TAs), organic species of As such as monomethylarsonic acid (MMA) and dimethylarsonic acid (DMA), and inorganic species including arsenite (AsIII) and arsenate (AsV) in both soil and vegetables. The data were used to determine several parameters to evaluate human health risk, including bioconcentration factor (BCF) from soil to plant, average daily intake (ADI), health risk index (HRI), incremental lifetime cancer risk (ILTCR), and hazard quotient (HQ). The total As concentration in soil samples of the five districts ranged from 3.0-3.9mgkg(-1), exhibiting minimal variations from site to site. The mean As concentration in edible portions of vegetable samples ranged from 0.03-1.38mgkg(-1). It was observed that As concentrations in 75% of the vegetable samples exceeded the safe maximum allowable limit (0.1mgkg(-1)) set by WHO/FAO. The highest value of ADI for As was measured for Momordica charantia, while the lowest was for Allium chinense. The results of this study revealed minimal health risk (HI<1) associated with consumption of vegetables for the local inhabitants. The ILTCR values for inorganic As indicated a minimal potential cancer risk through ingestion of vegetables. In addition, the HQ values for total As were <1, indicating minimal non-cancer risk.
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Affiliation(s)
- Zahir Ur Rehman
- Department of Environmental Sciences, University of Peshawar, Peshawar 25120, Pakistan; School of Earth and Environmental Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - Sardar Khan
- Department of Environmental Sciences, University of Peshawar, Peshawar 25120, Pakistan.
| | - Kun Qin
- College of Chemical Engineering, Taishan Medical University, Tai'an 271016, China.
| | - Mark L Brusseau
- School of Earth and Environmental Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - Mohammad Tahir Shah
- National Centre of Excellence in Geology, University of Peshawar, Peshawar 25120, Pakistan
| | - Islamud Din
- Department of Environmental Sciences, FBAS, International Islamic University, Islamabad, Sector H-10, 44000 Islamabad, Pakistan
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Gil-Díaz M, Diez-Pascual S, González A, Alonso J, Rodríguez-Valdés E, Gallego JR, Lobo MC. A nanoremediation strategy for the recovery of an As-polluted soil. CHEMOSPHERE 2016; 149:137-145. [PMID: 26855217 DOI: 10.1016/j.chemosphere.2016.01.106] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/14/2016] [Accepted: 01/25/2016] [Indexed: 06/05/2023]
Abstract
The present study investigates the impact of the nanoremediation treatment on soil recovery as evaluated by the development of barley plants. Highly As-polluted brownfield soil was treated with nanoscale zero-valent iron (nZVI) commercial suspension at two doses (1% and 10%). Barley plants were cultivated in treated and untreated soils in a growth chamber, and the As, Fe, and nutrients uptake were determined. The efficacy of As immobilization was evaluated according to the toxicity characteristics leaching procedure (TCLP) as well as using a sequential extraction procedure. The application of nZVI reduced the amount of As in the more available fractions and increased the amount of As in the residual fraction. The best immobilization results were obtained for the highest dose of nZVI (10%). In turn, the lower availability of As in nZVI-treated soils, particularly at the dose of 10%, stimulated the development of the barley plants and decreased the As uptake. Neither an important increase of available Fe nor negative impact on soil physico-chemical and biological properties were observed. Thus, our results show that the use of nZVI could be an adequate strategy to recover the land use in As polluted soils.
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Affiliation(s)
- M Gil-Díaz
- IMIDRA, Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentación, Finca "El Encín", Alcalá de Henares, Madrid, Spain.
| | - S Diez-Pascual
- IMIDRA, Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentación, Finca "El Encín", Alcalá de Henares, Madrid, Spain
| | - A González
- IMIDRA, Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentación, Finca "El Encín", Alcalá de Henares, Madrid, Spain
| | - J Alonso
- IMIDRA, Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentación, Finca "El Encín", Alcalá de Henares, Madrid, Spain
| | | | - J R Gallego
- Universidad de Oviedo, Mieres, Asturias, Spain
| | - M C Lobo
- IMIDRA, Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentación, Finca "El Encín", Alcalá de Henares, Madrid, Spain
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12
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Das S, Chou ML, Jean JS, Liu CC, Yang HJ. Water management impacts on arsenic behavior and rhizosphere bacterial communities and activities in a rice agro-ecosystem. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 542:642-652. [PMID: 26546760 DOI: 10.1016/j.scitotenv.2015.10.122] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 10/25/2015] [Accepted: 10/25/2015] [Indexed: 06/05/2023]
Abstract
Although rice cultivated under water-saturated conditions as opposed to submerged conditions has received considerable attention with regard to reducing As levels in rice grain, the rhizosphere microbiome potentially influencing As-biotransformation and bioavailability in a rice ecosystem has rarely been studied. In this study, the impacts of flooded, non-flooded and alternate wetting and drying (AWD) practices on rhizosphere bacterial composition and activities that could potentially impact As speciation and accumulation in rhizosphere soil and pore water, As fractions in rhizosphere soil and As speciation and distribution in plant parts were assessed. The results revealed that in addition to pore water As concentration, non-specifically sorbed As fraction, specifically sorbed As fraction and amorphous iron oxide bound As fraction in soil were bio-available to rice plants. In the flooded treatment, As(III) in the pore water was the predominant As species, accounting for 87.3-93.6% of the total As, whereas in the non-flooded and AWD treatments, As(V) was the dominant As species, accounting for 89.6-96.2% and 73.0-83.0%, respectively. The genera Ohtaekwangia, Geobacter, Anaeromyxobacter, Desulfuromonas, Desulfocapsa, Desulfobulbus, and Lacibacter were found in relatively high abundance in the flooded soil, whereas the genera Acinetobacter, Ignavibacterium, Thiobacillus, and Lysobacter were detected in relatively high abundance in the non-flooded soil. Admittedly, the decrease in As level in rice cultivated under the non-flooded and AWD conditions was mostly linked to a relatively high soil redox potential, low As(III) concentration in the soil pore water, a decrease in the relative abundance of As-, Fe- and sulfur-reducing bacteria and an increase in the relative abundance of As-, Fe- and sulfur-oxidizing bacteria in the rhizosphere soil of the rice. This study demonstrated that with substantial reduction in grain As levels and higher water productivity, AWD practice in rice cultivation should be favored over the non-flooded and continuously flooded rice cultivations in As-contaminated sites.
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Affiliation(s)
- Suvendu Das
- Department of Earth Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Mon-Lin Chou
- Department of Earth Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Jiin-Shuh Jean
- Department of Earth Sciences, National Cheng Kung University, Tainan, Taiwan.
| | - Chia-Chuan Liu
- Department of Earth Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Huai-Jen Yang
- Department of Earth Sciences, National Cheng Kung University, Tainan, Taiwan
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13
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Li P, Wang Y, Dai X, Zhang R, Jiang Z, Jiang D, Wang S, Jiang H, Wang Y, Dong H. Microbial community in high arsenic shallow groundwater aquifers in Hetao Basin of Inner Mongolia, China. PLoS One 2015; 10:e0125844. [PMID: 25970606 PMCID: PMC4429976 DOI: 10.1371/journal.pone.0125844] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 03/26/2015] [Indexed: 11/30/2022] Open
Abstract
A survey was carried out on the microbial community of 20 groundwater samples (4 low and 16 high arsenic groundwater) and 19 sediments from three boreholes (two high arsenic and one low arsenic boreholes) in a high arsenic groundwater system located in Hetao Basin, Inner Mongolia, using the 454 pyrosequencing approach. A total of 233,704 sequence reads were obtained and classified into 12-267 operational taxonomic units (OTUs). Groundwater and sediment samples were divided into low and high arsenic groups based on measured geochemical parameters and microbial communities, by hierarchical clustering and principal coordinates analysis. Richness and diversity of the microbial communities in high arsenic sediments are higher than those in high arsenic groundwater. Microbial community structure was significantly different either between low and high arsenic samples or between groundwater and sediments. Acinetobacter, Pseudomonas, Psychrobacter and Alishewanella were the top four genera in high arsenic groundwater, while Thiobacillus, Pseudomonas, Hydrogenophaga, Enterobacteriaceae, Sulfuricurvum and Arthrobacter dominated high arsenic sediments. Archaeal sequences in high arsenic groundwater were mostly related to methanogens. Biota-environment matching and co-inertia analyses showed that arsenic, total organic carbon, SO4(2-), SO4(2-)/total sulfur ratio, and Fe(2+) were important environmental factors shaping the observed microbial communities. The results of this study expand our current understanding of microbial ecology in high arsenic groundwater aquifers and emphasize the potential importance of microbes in arsenic transformation in the Hetao Basin, Inner Mongolia.
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Affiliation(s)
- Ping Li
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PRC
| | - Yanhong Wang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PRC
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PRC
| | - Xinyue Dai
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PRC
| | - Rui Zhang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PRC
| | - Zhou Jiang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PRC
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PRC
| | - Dawei Jiang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PRC
| | - Shang Wang
- Institute of Earth Sciences, China University of Geosciences, Beijing, 10083, China
| | - Hongchen Jiang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PRC
| | - Yanxin Wang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PRC
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PRC
| | - Hailiang Dong
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PRC
- Department of Geology and Environmental Earth Science, Miami University, Oxford, OH, 45056, United States of America
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Wang Y, Li P, Jiang D, Li B, Dai X, Jiang Z, Wang Y. Vertical distribution of bacterial communities in high arsenic sediments of Hetao Plain, Inner Mongolia. ECOTOXICOLOGY (LONDON, ENGLAND) 2014; 23:1890-1899. [PMID: 25154458 DOI: 10.1007/s10646-014-1322-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/09/2014] [Indexed: 06/03/2023]
Abstract
Vertical distribution of bacterial communities was detected in high arsenic (As) sediments in a representative high As area in Inner Mongolia. Nineteen sediment samples were collected from a 30 m borehole and detected by geochemistry and molecular ecological approaches including polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE), 16S rRNA gene clone library and 454 pyrosequencing. As contents ranged from 42.1 to 111.3 mg kg(-1) which fluctuated with different depth and significantly high in clay and mild clay sediment samples at depth of 8, 20, 25 and 28 m respectively. The ratios of As(III) to total As generally increased with depth but As(V) dominated in all sediment samples. High concentrations of total As, sulfur, iron and total organic carbon were generally found in clay and low in sand samples. Both DGGE patterns and 454 pyrosequencing results indicated that bacterial communities dynamically diversified with increasing depth and were dominated by Firmicutes, Bacteroidetes, Proteobacteria and Chloroflexi. Most of the sediment samples were dominated by populations including Sporosarcina, Acinetobacter, Pseudomonas, Halomonas, Polaromonas, Paenibacillus and Flavobacterium. These populations were found with high similarities with those microbes capable of denitrification, sulfur oxidation, organic matter degradation and As resistance and reduction. These results implied that microbes might play an important role in As mobilization in the shallow aquifers of Hetao Plain, Inner Mongolia.
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Affiliation(s)
- Yanhong Wang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
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Gil-Díaz M, Alonso J, Rodríguez-Valdés E, Pinilla P, Lobo MC. Reducing the mobility of arsenic in brownfield soil using stabilised zero-valent iron nanoparticles. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2014; 49:1361-1369. [PMID: 25072767 DOI: 10.1080/10934529.2014.928248] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The use of nanoscale zero-valent iron (nZVI) as a new tool for the treatment of polluted soils and groundwater has received considerable attention in recent years due to its high reactivity, in situ application and cost-effectiveness. The objectives of this study were to investigate the effectiveness of using a commercial stabilised suspension of nZVI to immobilise As in brownfield soil and to investigate its impact on Fe availability in the treated soil. The phytotoxicities of the soil samples were also evaluated using a germination test with two plant species: barley (Hordeum vulgare L) and common vetch (Vicia sativa L). Two doses of the commercial nZVI suspension were studied, 1% and 10%, and two soil-nanoparticle interaction times, 72 h and 3 mo, were used to compare the stabilities of the soils treated with nZVI. The As availability was evaluated using a sequential extraction procedure and the toxicity characteristics leaching procedure (TCLP) test. The application of nZVI significantly decreased the availability of As in the soil. The immobilisation of As was more effective and more stable over time with the 10% dose than with the 1% dose of the commercial nZVI suspension. The application of nZVI did not induce an important increase in Fe mobility because the Fe leachability was less than 2 mg L(-1) over the time period studied. The lower availability of As in the soil led to a decrease in the phytotoxicity of the soil to barley and vetch germination. Thus, the proposed nanotechnology could be a potential alternative for the in situ remediation of As-polluted soils and could be combined with remediation processes where plants are involved.
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Affiliation(s)
- Mar Gil-Díaz
- a IMIDRA, Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentación, Finca "El Encín", Alcalá de Henares , Madrid , Spain
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Larios R, Fernández-Martínez R, Silva V, Loredo J, Rucandio I. Arsenic contamination and speciation in surrounding waters of three old cinnabar mines. ACTA ACUST UNITED AC 2012; 14:531-42. [PMID: 22139034 DOI: 10.1039/c1em10684h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Raquel Larios
- Unidad de Espectroscopía, División de Química, Departamento de Tecnología, CIEMAT, Av Complutense 40, 28040 Madrid, Spain
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Larios R, Fernández-Martínez R, Lehecho I, Rucandio I. A methodological approach to evaluate arsenic speciation and bioaccumulation in different plant species from two highly polluted mining areas. THE SCIENCE OF THE TOTAL ENVIRONMENT 2012; 414:600-607. [PMID: 22154482 DOI: 10.1016/j.scitotenv.2011.09.051] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 09/20/2011] [Accepted: 09/20/2011] [Indexed: 05/31/2023]
Abstract
Arsenic accumulation and speciation in different plant species growing in two polluted sites were examined, in addition to arsenic transfer from soils to plants. The studied areas were two abandoned mercury mines in Northern Spain, La Soterraña and Los Rueldos. Plants accumulated extremely high amounts of arsenic in their tissues. Accumulation rates depend on both the grade of pollution of the site and on the plant species itself. Total arsenic concentrations varied depending on the part of the plant, with roots accumulating the most arsenic in all the studied plants (up to 1400 mg · kg(-1)). A suitable extraction method for arsenic speciation in the studied samples was developed and optimized using 0.3M orthophosphoric acid as the extracting agent in a graphite block digestion system at 90 °C for 1h. Extraction efficiencies were above 80% and speciation was not altered, since recoveries of the spiked arsenic species (As(III), As(V), DMA (dimethylarsonic acid) and MMA (monomethylarsonic acid)) were between 94 and 102%. Speciation studies were performed on the parts of each plant species by means of HPLC-ICP-MS with the results indicating no significant differences in the speciation between parts of the plants. As(V) was always the predominant species, although a non-negligible amount of As(III) was found for all samples. Little amounts of MMA and DMA occurred in certain samples. Arsenic uptake by plants depends on the plant available arsenic fraction in soils, here considered as the sum of water-soluble and phosphate-extractable fractions. Although soils from La Soterraña were less polluted, arsenic bioavailability was much higher than in Los Rueldos. Soil-to-plant transfer factors, based on total and available arsenic in soils, were evaluated for the studied plants. Dryopteris filix-mas and Calluna vulgaris (L.) Hull, from La Soterraña and Los Rueldos respectively, were the plants with the highest abilities to extract arsenic from their corresponding soils.
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Affiliation(s)
- Raquel Larios
- Unidad de Espectroscopía, División de Química, Departamento de Tecnología, CIEMAT, Madrid, Spain
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Inam E, Khantotong S, Kim KW, Tumendemberel B, Erdenetsetseg S, Puntsag T. Geochemical distribution of trace element concentrations in the vicinity of Boroo gold mine, Selenge Province, Mongolia. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2011; 33 Suppl 1:57-69. [PMID: 21046434 DOI: 10.1007/s10653-010-9347-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2010] [Accepted: 08/03/2010] [Indexed: 05/30/2023]
Abstract
The environmental impacts of Boroo gold mine project in Mongolia was evaluated by chemical characterization of trace element concentrations in water, soils and tailing dam sediment samples. The results showed that concentrations of B, Cd, Ni and Se in the water samples were within the accepted levels of the Mongolia water quality standard (MNS4586: 1998). However, the concentrations of Al, As, Cu, Mn, Fe, Pb, U and Zn were higher than the maximum allowable concentration especially in the monitoring and heap leach wells. The average concentrations of As, Cd, Cu, Ni, Pb and Zn in the tailing dam sediment were 4419, 58.5, 56.0, 4.8, 20.6 and 25.7 mg/kg, respectively. Generally, arsenic and heavy metals in the soil samples were within the acceptable concentrations of the soil standard of Mongolia (MNS 5850: 2008). The chemical characterization of As solid phase in tailing dam sediment showed that the majority of As were found in the residual fraction comprising about 74% of total As. Assessing the potential risk to humans, simple bioavailability extraction test was used to estimate bioavailability of arsenic and heavy metals, and the concentrations extracted from tailing dam sediment were; 288.2 mg/kg As, 7.2 mg/kg Cd, 41.1 mg/kg Cu, 13.5 mg/kg Pb, 4.7 mg/kg Ni and 23.5 mg/kg Zn, respectively. From these results, the Boroo gold mine project has presently not significantly impacted the environment, but there is a high probability that it may act as a source of future contamination.
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Affiliation(s)
- Edu Inam
- International Environmental Research Center, Gwangju Institute of Science and Technology, Korea
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Giral M, Zagury GJ, Deschênes L, Blouin JP. Comparison of four extraction procedures to assess arsenate and arsenite species in contaminated soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2010; 158:1890-1898. [PMID: 19945202 DOI: 10.1016/j.envpol.2009.10.041] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2009] [Revised: 10/08/2009] [Accepted: 10/26/2009] [Indexed: 05/28/2023]
Abstract
Inorganic arsenic in soils poses an important environmental concern. Several studies reported an oxidation of arsenite to arsenate during its extraction from soils. The objectives of this study were to (1) identify, among published procedures, an extraction method which preserves the oxidation state of arsenic and (2) to assess the influence of soil physicochemical properties on the performance of these methods. Four extraction strategies were compared: 1) 10 M HCl, 2) 15% (v/v) H(3)PO(4), 3) 10 mM phosphate + 0.5% (w/v) NaDDC, and, 4) 1 M H(3)PO(4) + 0.5 M ascorbic acid (C(6)H(8)O(6)). Separation and analysis of As species was performed by HPLC-ICP/MS. Oxidation of As(III) into As(V) during extraction was more important in soils with high content of Mn oxides. Extraction of arsenic from soils with 1 M H(3)PO(4) + 0.5 M C(6)H(8)O(6) under microwaves was the best strategy to extract the majority of As while minimizing conversion of As(III) into As(V).
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Affiliation(s)
- Mélanie Giral
- Department of Civil, Geological and Mining Engineering, Ecole Polytechnique de Montréal, P.O. Box 6079, Station Centre-Ville, Montréal, Québec H3C 3A7, Canada
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Shen-Tu C, Fan Y, Hou Y, Wang K, Zhu Y. Arsenic species analysis by ion chromatography–bianode electrochemical hydride generator–atomic fluorescence spectrometry. J Chromatogr A 2008; 1213:56-61. [DOI: 10.1016/j.chroma.2008.10.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2008] [Revised: 10/06/2008] [Accepted: 10/07/2008] [Indexed: 11/17/2022]
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Ruiz-Chancho MJ, López-Sánchez JF, Schmeisser E, Goessler W, Francesconi KA, Rubio R. Arsenic speciation in plants growing in arsenic-contaminated sites. CHEMOSPHERE 2008; 71:1522-1530. [PMID: 18179812 DOI: 10.1016/j.chemosphere.2007.11.054] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2007] [Revised: 11/21/2007] [Accepted: 11/22/2007] [Indexed: 05/25/2023]
Abstract
Concentrations of total arsenic and of arsenic species were determined by ICPMS and HPLC-ICPMS in terrestrial plant samples. The arsenic concentration in plant samples from the contaminated sites ranged from 1.14 to 98.5 mg kg(-1) (dry mass). However, a very high value, exceeding largely this range was found in a moss sample growing in the contaminated area (1750 mg kg(-1)). Plants growing in a non-contaminated area with similar geological characteristics contained 0.06-0.58 mg As kg(-1). Plant samples from different species were selected and extracted with water, water/methanol (9+1, v/v), and water/methanol (1+1, v/v). Water/methanol (9+1, v/v) was selected as extractant for the speciation analysis for all the plant samples. The extraction efficiencies ranged from 3.0% to 41.4%, with good agreement between samples from the same plant species. Arsenite and/or arsenate were found in all the plant samples. Additionally, methylarsonate (MA), dimethylarsinate (DMA), trimethylarsine oxide (TMAO) and tetramethylarsonium ion (TETRA) were also identified in several plants, and in some cases MA and DMA were the main species found. TMAO, which is usually found as a trace constituent in organisms, was also a significant arsenical in one of the studied samples, where it constituted 24% of the extracted arsenic. In the present study, the patterns of arsenic species varied with the plant species and much higher proportion of organoarsenicals was found in plants from the more contaminated sites.
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Affiliation(s)
- Maria José Ruiz-Chancho
- Departament de Química Analítica, Universitat de Barcelona, Martí i Franqués 1-11, 08028 Barcelona, Spain
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