1
|
Wu T, Zhang N, Liu C, Ding C, Zhang P, Hu S, Huang Y, Ge Z, Cui P, Wang Y. Factors driving antimony accumulation in soil-pakchoi and wheat agroecosystems: Insights and predictive models. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 351:124016. [PMID: 38648966 DOI: 10.1016/j.envpol.2024.124016] [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: 07/19/2023] [Revised: 11/28/2023] [Accepted: 04/18/2024] [Indexed: 04/25/2024]
Abstract
The accumulation of antimony (Sb) in plants and its potential effects on human health are of increasing concern. Nevertheless, only a few countries or regions have established soil Sb thresholds for agricultural purposes, and soil properties have not been taken into account. This study investigated the accumulation of Sb in the edible parts of pakchoi and wheat grain by adding exogenous Sb to 21 soils with varying properties. The results revealed a positive correlation between bioavailable Sb (Sbava, extracted by 0.1 M K2HPO4) in soil and Sb in the edible parts of pakchoi (R2 = 0.77, p < 0.05) and wheat grain (R2 = 0.54, p < 0.05). Both machine learning and traditional multiple regression analysis indicated Sbava was the most critical feature and the main soil properties that contributed to Sb uptake by pakchoi and wheat were CaCO3 and clay, respectively. The advisory food limits for Sb in pakchoi and wheat were estimated based on health risk assessment, and used to derive soil thresholds for safe pakchoi and wheat production based on Sbtot and Sbava, respectively. These findings hold potential for predicting Sb uptake by crops with different soil properties and informing safe production management strategies.
Collapse
Affiliation(s)
- Tongliang Wu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Naichi Zhang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Cun Liu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Changfeng Ding
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Peng Zhang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; Department of Agronomy, Hetao University, Bayannur, 015000, China
| | - Sainan Hu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Yihang Huang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Zixuan Ge
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225009, China
| | - Peixin Cui
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Yujun Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| |
Collapse
|
2
|
Caplette JN, Wilson SC, Mestrot A. Antimony release and volatilization from organic-rich and iron-rich submerged soils. JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134230. [PMID: 38608583 DOI: 10.1016/j.jhazmat.2024.134230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024]
Abstract
Antimony (Sb) is an poorly understood, increasingly common pollutant, especially in soils susceptible to waterlogging. We investigated the impact of waterlogging on Sb release, methylation, and volatilization from an organic-rich wetland soil and an iron (Fe)-rich floodplain soil in a 27-day microcosm experiment. The release of Sb into the porewaters of the organic-rich soil was environmentally relevant and immediate with waterlogging (3.2 to 3.5 mg L-1), and likely associated with a complex interplay of sulfide precipitation, sorption with organic matter and manganese (Mn) (oxyhydr)oxides in the soil. The release of Sb from the Fe-rich soil was likely associated with Fe-(oxyhydr)oxide reduction and immobilized due to co-precipitation with Fe-sulfides or as Sb-sulfides. Volatile Sb was produced from the soils after waterlogging. The organic-rich soil produced more volatile Sb (409 to 835 ng kgsoil-1), but the Fe-rich soil volatilized Sb more efficiently. The negligible association of Sb volatilization with soil parameters indicates a more complex underlying, potentially microbial, mechanism and that antimony volatilization could be ubiquitous and not dependent on specific soil properties. Future works should investigate the microbial and physiochemical drivers of Sb volatilization in soils as it may be an environmentally relevant part of the biogeochemical cycle.
Collapse
Affiliation(s)
- J N Caplette
- Institute of Geography, University of Bern, Switzerland; Minnow Aquatic Environmental Services, Toronto, Canada.
| | - S C Wilson
- School of Environmental and Rural Science, University of New England, Armidale, NSW, Australia
| | - A Mestrot
- Institute of Geography, University of Bern, Switzerland.
| |
Collapse
|
3
|
Spielman-Sun E, Boye K, Dwivedi D, Engel M, Thompson A, Kumar N, Noël V. A Critical Look at Colloid Generation, Stability, and Transport in Redox-Dynamic Environments: Challenges and Perspectives. ACS EARTH & SPACE CHEMISTRY 2024; 8:630-653. [PMID: 38654896 PMCID: PMC11033945 DOI: 10.1021/acsearthspacechem.3c00255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 01/20/2024] [Accepted: 02/07/2024] [Indexed: 04/26/2024]
Abstract
Colloid generation, stability, and transport are important processes that can significantly influence the fate and transport of nutrients and contaminants in environmental systems. Here, we critically review the existing literature on colloids in redox-dynamic environments and summarize the current state of knowledge regarding the mechanisms of colloid generation and the chemical controls over colloidal behavior in such environments. We also identify critical gaps, such as the lack of universally accepted cross-discipline definition and modeling infrastructure that hamper an in-depth understanding of colloid generation, behavior, and transport potential. We propose to go beyond a size-based operational definition of colloids and consider the functional differences between colloids and dissolved species. We argue that to predict colloidal transport in redox-dynamic environments, more empirical data are needed to parametrize and validate models. We propose that colloids are critical components of element budgets in redox-dynamic systems and must urgently be considered in field as well as lab experiments and reactive transport models. We intend to bring further clarity and openness in reporting colloidal measurements and fate to improve consistency. Additionally, we suggest a methodological toolbox for examining impacts of redox dynamics on colloids in field and lab experiments.
Collapse
Affiliation(s)
- Eleanor Spielman-Sun
- Environmental
Geochemistry Group at SLAC, Stanford Synchrotron Radiation Lightsource
(SSRL), SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Kristin Boye
- Environmental
Geochemistry Group at SLAC, Stanford Synchrotron Radiation Lightsource
(SSRL), SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Dipankar Dwivedi
- Earth
and Environmental Sciences Area, Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Maya Engel
- Department
of Soil and Water Sciences, Faculty of Agriculture, Food, and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel
| | - Aaron Thompson
- Department
of Crop and Soil Sciences, University of
Georgia, Athens, Georgia 30602, United States
| | - Naresh Kumar
- Soil
Chemistry, Wageningen University and Research, Wageningen 6708 PB, The Netherlands
| | - Vincent Noël
- Environmental
Geochemistry Group at SLAC, Stanford Synchrotron Radiation Lightsource
(SSRL), SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| |
Collapse
|
4
|
Yao C, He T. Effect of peat and thiol-modified peat application on mercury (im)mobilization in mercury-polluted paddy soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 254:114743. [PMID: 36905846 DOI: 10.1016/j.ecoenv.2023.114743] [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: 12/06/2022] [Revised: 02/26/2023] [Accepted: 03/05/2023] [Indexed: 06/18/2023]
Abstract
Mercury (Hg) pollution in paddy soil has gained special attention because methylmercury (MeHg) can accumulate in rice grains. Therefore, there is an urgent need to explore the remediation materials of mercury-polluted paddy soil. In this study, herbaceous peat (HP), peat moss (PM), and thiol-modified HP/PM (MHP/MPM) were selected to investigate the effects and probable mechanism of their application on Hg (im)mobilization in mercury-polluted paddy soil through pot experiments. The results showed that HP, PM, MHP and MPM addition increased MeHg concentrations in the soil, indicating that the addition of peat and thiol-modified peat might increase the exposure risk of MeHg in soil. The addition of HP could significantly decrease the total mercury (THg) and MeHg concentrations in rice, with average reduction efficiencies of 27.44% and 45.97%, respectively, while adding PM slightly increased the THg and MeHg concentrations in rice. In addition, the addition of MHP and MPM significantly decreased the bioavailable Hg concentrations in the soil and THg and MeHg concentrations in rice, with reduction efficiencies of rice THg and MeHg of 79.14∼93.14% and 82.72∼93.87%, respectively, indicating that thiol-modified peat had good remediation potential. The possible mechanism is that Hg can bind with thiols in MHP/MPM and form steady compounds in the soil, reducing Hg mobility in the soil and inhibiting its uptake by rice. Our study showed the potential value of HP, MHP and MPM addition for Hg remediation. Additionally, we must weigh the pros and cons when adding organic materials as remediation agents to mercury-polluted paddy soil.
Collapse
Affiliation(s)
- Cong Yao
- College of Resources and Environment, Southwest University, Chongqing 400715, China; Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Tianrong He
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang 550025, China; College of Resources and Environment, Guizhou University, Guiyang 550025, China.
| |
Collapse
|
5
|
Philippe M, Le Pape P, Resongles E, Landrot G, Freydier R, Bordier L, Baptiste B, Delbes L, Baya C, Casiot C, Ayrault S. Fate of antimony contamination generated by road traffic - A focus on Sb geochemistry and speciation in stormwater ponds. CHEMOSPHERE 2023; 313:137368. [PMID: 36574574 DOI: 10.1016/j.chemosphere.2022.137368] [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: 08/29/2022] [Revised: 11/09/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Although antimony (Sb) contamination has been documented in urban areas, knowledge gaps remain concerning the contributions of the different sources to the Sb urban biogeochemical cycle, including non-exhaust road traffic emissions, urban materials leaching/erosion and waste incineration. Additionally, details are lacking about Sb chemical forms involved in urban soils, sediments and water bodies. Here, with the aim to document the fate of metallic contaminants emitted through non-exhaust traffic emissions in urban aquatic systems, we studied trace element contamination, with a particular focus on Sb geochemistry, in three highway stormwater pond systems, standing as models of surface environments receiving road-water runoff. In all systems, differentiated on the basis of lead isotopic signatures, Sb shows the higher enrichment factor with respect to the geochemical background, up to 130, compared to other traffic-related inorganic contaminants (Co, Cr, Ni, Cu, Zn, Cd, Pb). Measurements of Sb isotopic composition (δ123Sb) performed on solid samples, including air-exposed dusts and underwater sediments, show an average signature of 0.07 ± 0.05‰ (n = 25, all sites), close to the δ123Sb value measured previously in certified reference material of road dust (BCR 723, δ123Sb = 0.03 ± 0.05‰). Moreover, a fractionation of Sb isotopes is observed between solid and dissolved phases in one sample, which might result from Sb (bio)reduction and/or adsorption processes. SEM-EDXS investigations show the presence of discrete submicrometric particles concentrating Sb in all the systems, interpreted as friction residues of Sb-containing brake pads. Sb solid speciation determined by linear combination fitting of X-Ray Absorption Near Edge Structure (XANES) spectra at the Sb K-edge shows an important spatial variability in the ponds, with Sb chemical forms likely driven by local redox conditions: "dry" samples exposed to air exhibited contributions from Sb(V)-O (52% to 100%) and Sb(III)-O (<10% to 48%) species whereas only underwater samples, representative of suboxic/anoxic conditions, showed an additional contribution from Sb(III)-S (41% to 80%) species. Altogether, these results confirm the traffic emission as a specific source of Sb emission in surface environments. The spatial variations of Sb speciation observed along the road-to-pond continuum likely reflect a high geochemical reactivity, which could have important implications on Sb transfer properties in (sub)surface hydrosystems.
Collapse
Affiliation(s)
- M Philippe
- Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL), UMR 8212 (CEA/CNRS/UVSQ), Université Paris-Saclay, Gif-sur-Yvette, France; Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), UMR 7590 CNRS - Sorbonne Université - IRD - MNHN, 4 place Jussieu, 75252 Paris, Cedex 5, France
| | - P Le Pape
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), UMR 7590 CNRS - Sorbonne Université - IRD - MNHN, 4 place Jussieu, 75252 Paris, Cedex 5, France.
| | - E Resongles
- HydroSciences Montpellier (HSM), Université de Montpellier - CNRS - IRD, Montpellier, France
| | - G Landrot
- Synchrotron SOLEIL, F-91192 Gif-Sur-Yvette, France
| | - R Freydier
- HydroSciences Montpellier (HSM), Université de Montpellier - CNRS - IRD, Montpellier, France
| | - L Bordier
- Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL), UMR 8212 (CEA/CNRS/UVSQ), Université Paris-Saclay, Gif-sur-Yvette, France
| | - B Baptiste
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), UMR 7590 CNRS - Sorbonne Université - IRD - MNHN, 4 place Jussieu, 75252 Paris, Cedex 5, France
| | - L Delbes
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), UMR 7590 CNRS - Sorbonne Université - IRD - MNHN, 4 place Jussieu, 75252 Paris, Cedex 5, France
| | - C Baya
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), UMR 7590 CNRS - Sorbonne Université - IRD - MNHN, 4 place Jussieu, 75252 Paris, Cedex 5, France
| | - C Casiot
- HydroSciences Montpellier (HSM), Université de Montpellier - CNRS - IRD, Montpellier, France
| | - S Ayrault
- Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL), UMR 8212 (CEA/CNRS/UVSQ), Université Paris-Saclay, Gif-sur-Yvette, France
| |
Collapse
|
6
|
Caplette JN, Gfeller L, Lei D, Liao J, Xia J, Zhang H, Feng X, Mestrot A. Antimony release and volatilization from rice paddy soils: Field and microcosm study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 842:156631. [PMID: 35691353 DOI: 10.1016/j.scitotenv.2022.156631] [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: 04/14/2022] [Revised: 06/01/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
The fate of antimony (Sb) in submerged soils and the impact of common agricultural practices (e.g., manuring) on Sb release and volatilization is understudied. We investigated porewater Sb release and volatilization in the field and laboratory for three rice paddy soils. In the field study, the porewater Sb concentration (up to 107.1 μg L-1) was associated with iron (Fe) at two sites, and with pH, Fe, manganese (Mn), and sulfate (SO42-) at one site. The surface water Sb concentrations (up to 495.3 ± 113.7 μg L-1) were up to 99 times higher than the regulatory values indicating a potential risk to aquaculture and rice agriculture. For the first time, volatile Sb was detected in rice paddy fields using a validated quantitative method (18.1 ± 5.2 to 217.9 ± 160.7 mg ha-1 y-1). We also investigated the influence of two common rice agriculture practices (flooding and manuring) on Sb release and volatilization in a 56-day microcosm experiment using the same soils from the field campaign. Flooding induced an immediate, but temporary, Sb release into the porewater that declined with SO42-, indicating that SO42- reduction may reduce porewater Sb concentrations. A secondary Sb release, corresponding to Fe reduction in the porewater, was observed in some of the microcosms. Our results suggest flooding-induced Sb release into rice paddy porewaters is temporary but relevant. Manuring the soils did not impact the porewater Sb concentration but did enhance Sb volatilization. Volatile Sb (159.6 ± 108.4 to 2237.5 ± 679.7 ng kg-1 y-1) was detected in most of the treatments and was correlated with the surface water Sb concentration. Our study indicates that Sb volatilization could be occurring at the soil-water interface or directly in the surface water and highlights that future works should investigate this potentially relevant mechanism.
Collapse
Affiliation(s)
| | - L Gfeller
- Institute of Geography, University of Bern, Switzerland
| | - D Lei
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, PR China
| | - J Liao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, PR China
| | - J Xia
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, PR China
| | - H Zhang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, PR China
| | - X Feng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, PR China.
| | - A Mestrot
- Institute of Geography, University of Bern, Switzerland.
| |
Collapse
|
7
|
Abbasi S, Lamb DT, Choppala G, Burton ED, Megharaj M. Antimony speciation, phytochelatin stimulation and toxicity in plants. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 305:119305. [PMID: 35430314 DOI: 10.1016/j.envpol.2022.119305] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/08/2022] [Accepted: 04/11/2022] [Indexed: 06/14/2023]
Abstract
Antimony (Sb) is a toxic metalloid that has been listed as a priority pollutant. The environmental impacts of Sb have recently attracted attention, but its phytotoxicity and biological transformation remain poorly understood. In this study, Sb speciation and transformation in plant roots was quantified by Sb K-edge X-ray absorption spectroscopy. In addition, the phytotoxicity of antimonate (SbV) on six plant species was assessed by measuring plant photosynthesis, growth, and phytochelatin production induced by SbV. Linear combination fitting of the Sb K-edge X-ray absorption near-edge structure (XANES) spectra indicated reduction of SbV was limited to ∼5-33% of Sb. The data confirmed that Sb-polygalacturonic acid was the predominant chemical form in all plant species (up to 95%), indicating Sb was primarily bound to the cell walls of plant roots. Shell fitting of Sb K-edge X-ray absorption fine-structure (EXAFS) spectra confirmed Sb-O and Sb-C were the dominant scattering paths. The fitting indicated that SbV was bound to hydroxyl functional groups of cell walls, via development of a local coordination environment analogous to Sb-polygalacturonic acid. This is the first study to demonstrate the key role of plant cell walls in Sb metabolism.
Collapse
Affiliation(s)
- Sepide Abbasi
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales, Australia; Environmental Resources Management (ERM), Sydney, Australia
| | - Dane T Lamb
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia.
| | - Girish Choppala
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales, Australia
| | - Edward D Burton
- Faculty of Science and Engineering, Southern Cross University, Lismore, New South Wales, 2480, Australia
| | - Mallavarapu Megharaj
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales, Australia
| |
Collapse
|
8
|
Wu T, Cui X, Ata-Ul-Karim ST, Cui P, Liu C, Fan T, Sun Q, Gong H, Zhou D, Wang Y. The impact of alternate wetting and drying and continuous flooding on antimony speciation and uptake in a soil-rice system. CHEMOSPHERE 2022; 297:134147. [PMID: 35240148 DOI: 10.1016/j.chemosphere.2022.134147] [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: 11/23/2021] [Revised: 02/21/2022] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
The accumulation of trace elements in rice, such as antimony (Sb), has drawn special attention owing to the potential increased risk to human health. However, the effects of two common irrigation methods, alternate wetting and drying and continuous flooding, on Sb behaviors and subsequent accumulation in rice is unclear. In this study a pot experiment with various Sb additions (0, 50, 200, 1000 mg Sb kg-1) was carried out with these two irrigation methods in two contrasting paddy soils (an Anthrosol and a Ferralic Cambisol). The dynamics of Sb in soil porewater indicated that continuous flooding generally immobilized more Sb than alternate wetting and drying, concomitant with a pronounced reduction of Sb(V) in porewater. However, a higher phytoavailable fraction of Sb was observed under continuous flooding. The content of Sb in the rice plant decreased in the order of root > shoot > husk > grain, and continuous flooding facilitated Sb accumulation in rice root and shoot as compared with alternate wetting and drying. The differences of Sb content in root, shoot, and husk between the two irrigation methods was smaller in aboveground parts, and almost no difference in Sb was observed in grain between the two methods. The findings of this study facilitates the understanding of Sb speciation and behavior in soils with these common yet different water management regimes.
Collapse
Affiliation(s)
- Tongliang Wu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Xiaodan Cui
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Geological Survey of Jiangsu Province, Nanjing, 210018, China
| | - Syed Tahir Ata-Ul-Karim
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Peixin Cui
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Cun Liu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Tingting Fan
- Nanjing Institute of Environmental Science, State Environmental Protection Administration, Nanjing 210042, China
| | - Qian Sun
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 210098, China
| | - Hua Gong
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Dongmei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Yujun Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| |
Collapse
|
9
|
Du H, Li Y, Wan D, Sun C, Sun J. Tungsten distribution and vertical migration in soils near a typical abandoned tungsten smelter. JOURNAL OF HAZARDOUS MATERIALS 2022; 429:128292. [PMID: 35065311 DOI: 10.1016/j.jhazmat.2022.128292] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/02/2022] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
As an emerging contaminant, tungsten's distribution and speciation in soils are far from understood. In this study, two soil profiles near a typical abandoned tungsten smelter in Hunan Province, China were collected and investigated, to ascertain the binding and association of tungsten with different soil components and subsequently to understand its mobility. The data showed that past tungsten smelting activities resulted in elevated concentrations of both tungsten and arsenic in the soil profiles, both of which ranged from dozens of to a few hundred mg/kg. Nano-scale secondary ion mass spectrometry (NanoSIMS) was employed to quantify the distribution and association of tungsten with various other elements. Combined with sequential extraction and mineralogical analysis, the data from NanoSIMS showed that aluminosilicates including kaolinite and illite were the most important mineral hosts for tungsten, whereas arsenic was predominantly bound to iron (oxyhydr)oxides. Additional data from 13C nuclear magnetic resonance and X-ray photoelectron spectroscopy revealed that soil organic matter retained tungsten in deep soils (>70 cm) by binding tungsten through carboxyls on aromatic rings. Compared to arsenic, tungsten migrated deeper in the soil profiles, suggesting its higher mobility and potential risk to groundwater quality.
Collapse
Affiliation(s)
- Huihui Du
- College of Resources and Environment, Hunan Agricultural University, 410127 Changsha, China
| | - Yang Li
- College of Resources and Environment, Hunan Agricultural University, 410127 Changsha, China
| | - Dan Wan
- School of Earth System Science, Tianjin University, 300072 Tianjin, China
| | - Chuanqiang Sun
- School of Earth System Science, Tianjin University, 300072 Tianjin, China
| | - Jing Sun
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China.
| |
Collapse
|
10
|
Wang JL, Alasonati E, Fisicaro P, Benedetti MF. Titanium nanoparticles fate in small-sized watersheds under different land-uses. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126695. [PMID: 34418834 DOI: 10.1016/j.jhazmat.2021.126695] [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: 03/17/2021] [Revised: 06/10/2021] [Accepted: 07/18/2021] [Indexed: 06/13/2023]
Abstract
Surface waters from three catchments having contrasting land-uses (forested, agricultural, and urban) were sampled monthly and analysed for nanoparticulate titanium dioxide (NPs-TiO2) by single particle ICPMS and electron microscopy. We report one-year of data for NPs-TiO2 having average number and mass concentrations of 9.1 × 108 NPs-TiO2 particles L-1 and 11 µg NPs-TiO2 L-1 respectively. An increase in concentration during warmer months is observed in the forested and agricultural catchments. Both concentrations of NPs-TiO2 are within the range of recently reported values using similar analytical approaches. The positive correlations for NPs-TiO2 mass concentration or particle number with the concentration of some trace elements and DOC in the forested and agricultural catchments suggest the detected NPs-TiO2 in these two systems are mostly from geogenic origin. Additionally, microscopy imaging confirmed the presence of NPs in the three catchments. Furthermore, the land-area normalized annual flux of NPs-TiO2 (1.65 kg TiO2 year-1 km-2) was highest for the agricultural catchment, suggesting that agricultural practices have a different impact on the NPs-TiO2 dynamics and exports than other land-uses (urban or forestry). A similar trend is also found by the reanalysis of recent literature data.
Collapse
Affiliation(s)
- Jia-Lan Wang
- Université de Paris, Institut de physique du globe de Paris, CNRS, F-75005 Paris, France; Department of Biomedical and Inorganic Chemistry, Laboratoire National de Métrologie et d'Essais (LNE), 1 rue Gaston Boissier, Paris 75015, France
| | - Enrica Alasonati
- Department of Biomedical and Inorganic Chemistry, Laboratoire National de Métrologie et d'Essais (LNE), 1 rue Gaston Boissier, Paris 75015, France
| | - Paola Fisicaro
- Department of Biomedical and Inorganic Chemistry, Laboratoire National de Métrologie et d'Essais (LNE), 1 rue Gaston Boissier, Paris 75015, France
| | - Marc F Benedetti
- Université de Paris, Institut de physique du globe de Paris, CNRS, F-75005 Paris, France.
| |
Collapse
|
11
|
Ye L, Jing C. Environmental geochemistry of thioantimony: formation, structure and transformation as compared with thioarsenic. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2021; 23:1863-1872. [PMID: 34734613 DOI: 10.1039/d1em00261a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Antimony (Sb), a redox-sensitive toxic element, has received global attention due to the increased awareness of its rich geochemistry. The past two decades have witnessed the explosive development in geochemistry of oxyanionic Sb(OH)3 and Sb(OH)6-. Emerging thioantimony species (Sb-S) have recently been detected, which actually dominate the Sb mobility in sulfate-reducing environments. However, the instability and complexity of Sb-S present the most pressing challenges. To overcome these barriers, it is urgent to summarize the existing research on the environmental geochemistry of Sb-S. Since Sb-S is an analogous species to thioarsenic (As-S), a comparison between Sb-S and As-S will provide insightful information. Therefore, this review presents a way of comparing environmental geochemistry between Sb-S and As-S. Here, we summarize the formation and transformation of Sb-S and As-S, their chemical structures and analytical methods. Then, the challenges and perspectives are discussed. Finally, the important scientific questions that need to be addressed are also proposed.
Collapse
Affiliation(s)
- Li Ye
- School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
| | - Chuanyong Jing
- School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| |
Collapse
|
12
|
Olson AP, Ma L, Feng Y, Najafi Khosroshahi F, Kelley SP, Aluicio-Sarduy E, Barnhart TE, Hennkens HM, Ellison PA, Jurisson SS, Engle JW. A Third Generation Potentially Bifunctional Trithiol Chelate, Its nat,1XXSb(III) Complex, and Selective Chelation of Radioantimony ( 119Sb) from Its Sn Target. Inorg Chem 2021; 60:15223-15232. [PMID: 34606252 DOI: 10.1021/acs.inorgchem.1c01690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The therapeutic potential of the Meitner-Auger- and conversion-electron emitting radionuclide 119Sb remains unexplored because of the difficulty of incorporating it into biologically targeted compounds. To address this challenge, we report the development of 119Sb production from electroplated tin cyclotron targets and its complexation by a novel trithiol chelate. The chelation reaction occurs in harsh solvent conditions even in the presence of large quantities of tin, which are necessary for production on small, low energy (16 MeV) cyclotrons. The 119Sb-trithiol complex has high stability and can be purified by HPLC. The third generation trithiol chelate and the analogous stable natSb-trithiol compound were synthesized and characterized, including by single-crystal X-ray diffraction analyses.
Collapse
Affiliation(s)
- Aeli P Olson
- Department of Medical Physics, University of Wisconsin, Madison, Wisconsin 53705, United States
| | - Li Ma
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Yutian Feng
- Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710, United States
| | | | - Steven P Kelley
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Eduardo Aluicio-Sarduy
- Department of Medical Physics, University of Wisconsin, Madison, Wisconsin 53705, United States
| | - Todd E Barnhart
- Department of Medical Physics, University of Wisconsin, Madison, Wisconsin 53705, United States
| | - Heather M Hennkens
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States.,University of Missouri Research Reactor (MURR), Columbia, Missouri 65203, United States
| | - Paul A Ellison
- Department of Medical Physics, University of Wisconsin, Madison, Wisconsin 53705, United States
| | - Silvia S Jurisson
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Jonathan W Engle
- Department of Medical Physics, University of Wisconsin, Madison, Wisconsin 53705, United States.,Department of Radiology, University of Wisconsin, Madison, Wisconsin 53705, United States
| |
Collapse
|
13
|
Diquattro S, Castaldi P, Ritch S, Juhasz AL, Brunetti G, Scheckel KG, Garau G, Lombi E. Insights into the fate of antimony (Sb) in contaminated soils: Ageing influence on Sb mobility, bioavailability, bioaccessibility and speciation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 770:145354. [PMID: 33736407 PMCID: PMC8064402 DOI: 10.1016/j.scitotenv.2021.145354] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 01/15/2021] [Accepted: 01/17/2021] [Indexed: 05/19/2023]
Abstract
The effect of long-term ageing (up to 700 days) on the mobility, potential bioavailability and bioaccessibility of antimony (Sb) was investigated in two soils (S1: pH 8.2; S2: pH 4.9) spiked with two Sb concentrations (100 and 1000 mg·kg-1). The Sb mobility decreased with ageing as highlighted by sequential extraction, while its residual fraction significantly increased. The concentration of Sb (CDGT), as determined by diffusive gradients in thin films (DGT), showed a reduction in potential contaminant bioavailability during ageing. The DGT analysis also showed that Sb-CDGT after 700 days ageing was significantly higher in S1-1000 compared to S2-1000, suggesting soil pH plays a key role in Sb potential bioavailability. In-vitro tests also revealed that Sb bioaccessibility (and Hazard Quotient) decreased over time. Linear combination fitting of Sb K-edge XANES derivative spectra showed, as a general trend, an increase in Sb(V) sorption to inorganic oxides with ageing as well as Sb(V) bound to organic matter (e.g. up to 27 and 37% respectively for S2-100). The results indicated that ageing can alleviate Sb ecotoxicity in soil and that the effectiveness of such processes can be increased at acidic pH. However, substantial risks due to Sb mobility, potential bioavailability and bioaccessibility remained in contaminated soils even after 700 days ageing.
Collapse
Affiliation(s)
- Stefania Diquattro
- Dipartimento di Agraria, University of Sassari, Viale Italia 39/B, 07100 Sassari, Italy
| | - Paola Castaldi
- Dipartimento di Agraria, University of Sassari, Viale Italia 39/B, 07100 Sassari, Italy
| | - Susie Ritch
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, SA 5095, Australia
| | - Albert L Juhasz
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, SA 5095, Australia
| | - Gianluca Brunetti
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, SA 5095, Australia
| | - Kirk G Scheckel
- U. S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Solutions and Emergency Response, Cincinnati, OH 45268, United States
| | - Giovanni Garau
- Dipartimento di Agraria, University of Sassari, Viale Italia 39/B, 07100 Sassari, Italy.
| | - Enzo Lombi
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, SA 5095, Australia
| |
Collapse
|
14
|
Engel M, Lezama Pacheco JS, Noël V, Boye K, Fendorf S. Organic compounds alter the preference and rates of heavy metal adsorption on ferrihydrite. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 750:141485. [PMID: 32862002 DOI: 10.1016/j.scitotenv.2020.141485] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/02/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
The availability of heavy metals in terrestrial environments is largely controlled by their interactions with minerals and organic matter, with iron minerals having a particularly strong role in heavy metal fate. Because soil organic matter contains a variety of compounds that differ in their chemical properties, the underlying impact organic matter-soil mineral associations bestow on heavy metal binding is still unresolved. Here, we systematically examine the binding of Cd, Zn and Ni by a suite of organic-ferrihydrite assemblages, chosen to account for various compound chemistries within soil organic matter. We posited that organic compound functionality would dictate the extent of association with the organic-ferrihydrite assemblages. Increased heavy metal binding to the assemblages was observed and attributed to the introduction of additional binding sites by the organic functional groups with differing metal affinities. The relative increase depended on the metal's Lewis acidity and followed the order Cd > Zn > Ni, whereas the reverse order was obtained for metal binding by pristine ferrihydrite (Ni > Zn > Cd). Citric acid-, aspartic acid- and cysteine-ferrihydrite assemblages also enhanced the metal binding rate. X-ray absorption spectroscopy revealed that the organic coating contributed significantly to Zn binding by the assemblages, despite relatively low organic surface coverage. Our findings provide valuable information on the nature of heavy metal-organic-mineral interactions and metal adsorption processes regulating their bioavailability and transport.
Collapse
Affiliation(s)
- Maya Engel
- Department of Earth System Science, Stanford University, Stanford, CA 94305, United States
| | - Juan S Lezama Pacheco
- Department of Earth System Science, Stanford University, Stanford, CA 94305, United States
| | - Vincent Noël
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, United States
| | - Kristin Boye
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, United States
| | - Scott Fendorf
- Department of Earth System Science, Stanford University, Stanford, CA 94305, United States.
| |
Collapse
|
15
|
Zhu Y, Yang J, Wang L, Lin Z, Dai J, Wang R, Yu Y, Liu H, Rensing C, Feng R. Factors influencing the uptake and speciation transformation of antimony in the soil-plant system, and the redistribution and toxicity of antimony in plants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 738:140232. [PMID: 32806353 DOI: 10.1016/j.scitotenv.2020.140232] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/10/2020] [Accepted: 06/13/2020] [Indexed: 06/11/2023]
Abstract
Antimony (Sb) is not an essential element for humans and plants although it can be used to treat some human diseases, such as schistosomiasis. Sb contamination has been documented in many regions around the world, particularly in China. The Sb contamination in the environment often stems from anthropogenic activities such as mining, smelting, and shooting. Within the latest decade, great progress has been made in research examining the physiochemical behavior of Sb in the environment, including 1) the extent of Sb pollution around the world particularly in China; 2) the mechanisms and factors influencing Sb migration in soils, especially the adsorption/desorption of Sb by minerals or organic materials; 3) the transformations influencing speciation catalyzed by soil microbes; 4) to a lesser extent, the toxicity of Sb to plants and soil animals. In this review, we highlighted the current knowledge with respect to 1) how soil physicochemical properties (including water regimes, pH, organic materials and Eh), and soil organisms will affect the soil bioavailability of Sb, and subsequently the uptake of Sb by plants; 2) the uptake pathway of antimonite and antimonate, the translocation of Sb from roots to shoots, and the redistribution and toxicity of Sb in plants.
Collapse
Affiliation(s)
- YanMing Zhu
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - JiGang Yang
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - LiZhen Wang
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - ZiTing Lin
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - JiaXin Dai
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - RenJie Wang
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - YanShuang Yu
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Hong Liu
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China.
| | - Christopher Rensing
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - RenWei Feng
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China.
| |
Collapse
|
16
|
Robertson LM, Wu S, You F, Huang L, Southam G, Chan TS, Lu YR, Bond PL. Geochemical and mineralogical changes in magnetite Fe-ore tailings induced by biomass organic matter amendment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 724:138196. [PMID: 32272405 DOI: 10.1016/j.scitotenv.2020.138196] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/22/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Direct phytostabilization of alkaline and finely textured Fe-ore tailings is a key challenge for sustainable rehabilitation of tailings landscapes, due to limited topsoil resources available for constructing functional root-zones. The eco-engineering of soils (i.e. technosol) from tailings through the deliberate combination of technic materials with ecological inputs (e.g. biomass, water, topsoil and organisms) may provide a cost-effecctive and sustainable alternative to topsoil-based option for tailings rehabilitation. This approach purposefully accelerates in situ mineral weathering and the development of soil-like physicochemical and biological properties and functions in the tailings. The present study aimed to characterize mineralogical and geochemical changes associated with soil formation in Fe-ore tailings, by admixing biomass organic matter (BOM) and soil inoculum under well-watered conditions. Magnetite Fe-ore tailings (pH ~9.5) were amended with 3% (w/w) BOM (Lucerne hay) and natural soil microbial communities and incubated for 68 days in a microcosm study. BOM amendment with soil inoculum resulted in a rapid neutralization of alkaline pH conditions in the tailings. The weathering of magnetite and biotite-like phyllosilicates were accelerated, resulting in increased concentrations of soluble Mg, K, Fe, Ca, and Si in porewater. Evidence of the accelerated weathering was verified by synchrotron-based Fe K-edge X-ray absorption fine structure (XAFS) spectroscopy analysis, showing the presence of possibly Fe (III)-oxalates. The weathering resulted in eroded morphological surfaces of Fe-bearing minerals in the BOM treated tailings. This study confirmed the expected geochemical and mineralogical changes in the magnetite Fe-ore tailings induced by BOM amendment, providing a fundamental basis for eco-engineering tailings into soil-like technosol.
Collapse
Affiliation(s)
- Lachlan M Robertson
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Songlin Wu
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Fang You
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Longbin Huang
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, Queensland 4072, Australia.
| | - Gordon Southam
- School of Earth & Environmental Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Ting-Shan Chan
- National Synchrotron Radiation Research Centre, Hsinchu Science Park, Hsinchu 300, Taiwan
| | - Ying-Rui Lu
- National Synchrotron Radiation Research Centre, Hsinchu Science Park, Hsinchu 300, Taiwan
| | - Phillip L Bond
- Formerly Advanced Water Management Centre, The University of Queensland, Brisbane, Queensland 4072, Australia
| |
Collapse
|
17
|
Eberle A, Besold J, Kerl CF, Lezama-Pacheco JS, Fendorf S, Planer-Friedrich B. Arsenic Fate in Peat Controlled by the pH-Dependent Role of Reduced Sulfur. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:6682-6692. [PMID: 32347724 DOI: 10.1021/acs.est.0c00457] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Reduced sulfur (S) has a contrasting role in the fate of arsenic (As) in peatlands. Sulfur bridges provide efficient binding of As to organic carbon (C), but the formation of aqueous As-S species, so-called thioarsenates, leads to a low to no sorption tendency to organic C functional groups. Here, we studied how pH changes the role of reduced S in desorption and retention of presorbed As in model peat. Control desorption experiments without S addition revealed that As was mobilized, predominantly as arsenite, in all treatments with relative mobilization increasing with pH (4.5 < 7.0 < 8.5). Addition of sulfide or polysulfide caused substantial As retention at acidic conditions but significantly enhanced As desorption compared to controls at neutral to alkaline pH. Thioarsenates dominated As speciation at pH 7.0 and 8.5 (maximum, 79%) and remained in solution without (re)sorption to peat. Predominance of arsenite in control experiments and no evidence of surface-bound thioarsenates at pH 7.0 suggest mobilization to proceed via arsenite desorption, reaction with dissolved or surface-bound reduced S, and formation of thioarsenates. Our results suggest that natural or management-related increases in pH or increases in reduced S in near-neutral pH environments can turn organic matter from an As sink into a source.
Collapse
Affiliation(s)
- Anne Eberle
- Department of Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BAYCEER), University of Bayreuth, 95440 Bayreuth, Germany
| | - Johannes Besold
- Department of Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BAYCEER), University of Bayreuth, 95440 Bayreuth, Germany
| | - Carolin F Kerl
- Department of Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BAYCEER), University of Bayreuth, 95440 Bayreuth, Germany
| | - Juan S Lezama-Pacheco
- Department of Earth System Science, Stanford University, Stanford, California 94305, United States
| | - Scott Fendorf
- Department of Earth System Science, Stanford University, Stanford, California 94305, United States
| | - Britta Planer-Friedrich
- Department of Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BAYCEER), University of Bayreuth, 95440 Bayreuth, Germany
| |
Collapse
|
18
|
Johnston SG, Bennett WW, Doriean N, Hockmann K, Karimian N, Burton ED. Antimony and arsenic speciation, redox-cycling and contrasting mobility in a mining-impacted river system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 710:136354. [PMID: 32050372 DOI: 10.1016/j.scitotenv.2019.136354] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 12/24/2019] [Accepted: 12/24/2019] [Indexed: 06/10/2023]
Abstract
The Macleay River in eastern Australia is severely impacted by historic stibnite- and arsenopyrite-rich mine-tailings. We explore the partitioning, speciation, redox-cycling, mineral associations and mobility of antimony and arsenic along >70 km reach of the upper Macleay River. Elevated Sb/As occur throughout the active channel-zone and in floodplain pockets up to the regolith margin, indicating broad dispersal during floods. Sb concentrations in bulk-sediments decay exponentially downstream more efficiently than As, likely reflecting sediment dilution, hydraulic sorting and comparatively greater leaching of (more mobile) Sb(V) species. However, Sb in bulk-sediments becomes proportionally more bio-available downstream. Sb(V) and As(V) species dominate stream fine-grained (<180 μm) bulk-sediments, reflecting oxidative weathering downstream. Increasing poorly-crystalline Fe(III) [Fe(III)HCl] in bulk-sediments also indicates progressive oxidative weathering of Fe(II)-bearing minerals downstream and significant (P < .05) correlations exist between PO4-3-exchangeable As and Sb fractions and Fe(III)HCl. Accumulations of poorly-crystalline Fe(III) precipitates (mainly ferrihydrite/feroxyhyte) occur intermittently in hyporheic-zone seeps and are enriched in As relative to Sb and contain some As(III) and Sb(III) (~30-40%). There is dynamic in-stream redox-cycling of both Sb and As, with localised S-coordinated As and Sb species re-forming in organic-rich, hyporheic sediments subject to contemporary sulfidogenesis. Sb [mainly Sb(V)] is comparatively more mobile in hyporheic and surface waters under oxic conditions, whereas As [mainly As(III)] is more mobile in hyporheic porewaters subject to reducing/sulfidogenic conditions. Repeat water-leaching of bulk-sediments confirms that Sb is proportionally more mobile than As. Mean concentrations of Sb in river water 168 km downstream from the mine are significantly (P < .05) higher than As, while Kd data indicate Sb is more strongly partitioned to the aqueous phase than As. Although the (mainly) oxic flow path of this river favours aqueous Sb mobility compared to As, localised redox-driven shifts in speciation of both elements strongly influence their respective mobility and partitioning.
Collapse
Affiliation(s)
- Scott G Johnston
- Southern Cross Geoscience, Southern Cross University, Lismore, NSW 2480, Australia.
| | - William W Bennett
- Environmental Futures Research Institute, Griffith University Gold Coast campus, Southport, QLD 4215, Australia
| | - Nicholas Doriean
- Environmental Futures Research Institute, Griffith University Gold Coast campus, Southport, QLD 4215, Australia
| | - Kerstin Hockmann
- University of Bayreuth, Bayreuth Center for Ecology and Environmental Research (BayCEER), Universitaetsstrasse 30, D-95440 Bayreuth, Germany
| | - Niloofar Karimian
- Southern Cross Geoscience, Southern Cross University, Lismore, NSW 2480, Australia
| | - Edward D Burton
- Southern Cross Geoscience, Southern Cross University, Lismore, NSW 2480, Australia
| |
Collapse
|
19
|
Fang W, Shi X, Yang D, Hu X, Williams PN, Shi B, Liu Z, Luo J. In Situ Selective Measurement Based on Diffusive Gradients in Thin Films Technique with Mercapto-Functionalized Mesoporous Silica for High-Resolution Imaging of Sb III in Soil. Anal Chem 2020; 92:3581-3588. [PMID: 31916433 DOI: 10.1021/acs.analchem.9b04225] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In situ monitoring of Sb speciation improves the understanding of Sb biogeochemistry and toxicity in ecosystems. Precise measurement of Sb is a challenge due to its instability of oxidation and ultratrace concentration. The development of simple and reliable methods specific to SbIII measurement is not only appealing but essential for implementing regulations. Here, we present an in situ speciation analysis method for SbIII, using the diffusive gradients in thin films (DGT) technique, combined with mercapto-functionalized SBA-15 mesoporous silica nanoparticles (MSBA). Laboratory performance tests confirmed MSBA-DGT uptake was independent of pH (4-9) and ionic strength (0.1-200 mmol L-1). DGT devices equipped with MSBA-based binding gels showed a theoretically linear accumulation of SbIII and exhibited a high capacity for SbIII at 65 μg/gel disc, with negligible accumulation of SbV over a 72 h deployment. Compared with commercial 3-mercaptopropyl-functionalized silica (MFS), the nanosized MSBA facilitate its even distribution in the binding gels. Furthermore, the good selectivity and high homogeneity of the MSBA gel enabled it to be applied in a rice rhizosphere in conjunction with AgI gel to investigate the effects of sulfur application on the SbIII solubility. In summary, the newly developed MSBA-DGT provides a selective measurement of SbIII, showing potential for environmental monitoring and further application in understanding the biogeochemical process of Sb.
Collapse
Affiliation(s)
- Wen Fang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| | - Xinyao Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| | - Danxing Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| | - Xuan Hu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| | - Paul N Williams
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast BT9 7BL, United Kingdom
| | - Bingqing Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| | - Zhaodong Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| | - Jun Luo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| |
Collapse
|
20
|
Heiderscheidt E, Khan UA, Kujala K, Ronkanen AK, Postila H. Design, construction and monitoring of pilot systems to evaluate the effect of freeze-thaw cycles on pollutant retention in wetlands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 703:134713. [PMID: 31734501 DOI: 10.1016/j.scitotenv.2019.134713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/04/2019] [Accepted: 09/27/2019] [Indexed: 06/10/2023]
Abstract
Due to the complexity of soil freeze/thaw processes and a variety of factors affecting pollutant removal in treatment wetlands, laboratory pilot systems are powerful tools offering a rare opportunity to observe processes that have a significant impact on year-round purification. This paper describes the design, construction, monitoring and operation of two replicate pilot peat-based wetlands subjected to two simulated freeze-thaw cycles. Undisturbed peat soil and pre-treated gold mine process wastewater were collected from a full-scale treatment wetland operating at a mining site in Northern Finland. The wastewater (pH ~7.8, electric conductivity ~3.6 mS/cm) contained a mix of metals/metalloids (e.g. arsenic 12 µg/L, antimony 19 µg/L) and other contaminants e.g. sulphate (~2 g/L). Fluctuations in removal efficiency of target compounds due to freezing and thawing conditions were observed. Overall, removal of sulphate and arsenic decreased during frost periods, while removal of antimony increased. Monitoring data from the full-scale treatment wetland were used to assess the representativeness of the results obtained. Comparisons of seasonal variations in pollutant concentrations in outflow samples from the full-scale wetland and those measured in the pilot wetlands revealed similar fluctuations in removal efficiency during frost and frost-free periods, suggesting that the pilot wetlands simulated the real system rather well. Carefully designed pilot systems can thus be valuable tools for assessing the effect of harsh winter conditions on wetland processes and operation.
Collapse
Affiliation(s)
- Elisangela Heiderscheidt
- Water, Energy and Environmental Engineering, Faculty of Technology, University of Oulu, 90014, Finland.
| | - Uzair Akbar Khan
- Water, Energy and Environmental Engineering, Faculty of Technology, University of Oulu, 90014, Finland
| | - Katharina Kujala
- Water, Energy and Environmental Engineering, Faculty of Technology, University of Oulu, 90014, Finland
| | - Anna-Kaisa Ronkanen
- Water, Energy and Environmental Engineering, Faculty of Technology, University of Oulu, 90014, Finland
| | - Heini Postila
- Water, Energy and Environmental Engineering, Faculty of Technology, University of Oulu, 90014, Finland
| |
Collapse
|
21
|
Verbeeck M, Thiry Y, Smolders E. Soil organic matter affects arsenic and antimony sorption in anaerobic soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 257:113566. [PMID: 31813702 DOI: 10.1016/j.envpol.2019.113566] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 10/09/2019] [Accepted: 11/01/2019] [Indexed: 06/10/2023]
Abstract
Soil organic matter (SOM) affects arsenic (As) and antimony (Sb) mobility in soils under waterlogged conditions by acting as an electron donor, by catalyzing redox-cycling through electron shuttling and by acting as a competing ligand. This study was set up to disentangle these different effects of SOM towards As and Sb sorption in anaerobic soils. Nine samples were taken at different depths in an agricultural soil profile to collect samples with a natural SOM gradient (<1-40 g soil organic carbon kg-1). The samples were incubated either or not under waterlogged conditions in an anaerobic chamber for 63-70 days, and glucose (5 g C kg-1) was either or not added to the anaerobic incubated samples as an electron donor that neither acts as an electron shuttle nor as a competing ligand. The solid-liquid distribution coefficients (KD) of As and Sb were measured at trace levels. The KD values of As decreased ∼2 orders of magnitude upon waterlogging the SOM rich topsoil, while no additional changes were observed when glucose was added. In contrast, smaller changes in the As KD values were found in the low SOM containing subsoil samples, unless glucose was added that mobilised As. The Sb KD values increased upon reducing conditions up to factor 20, but again only in the high SOM topsoil samples. Surprisingly, the Sb immobilisation during waterlogging only occurred in Sb amended soils whereas the geogenic Sb was mobilised upon reducing conditions, although total dissolved Sb concentrations remained low (<10 nM). The change in As and Sb sorption upon waterlogging was similar in the SOM rich topsoil as in the low SOM subsoil amended with glucose. This suggests that the SOM dependent changes in As and Sb mobility in response to soil waterlogging are primarily determined by the role of SOM as electron donor.
Collapse
Affiliation(s)
- Mieke Verbeeck
- KU Leuven, Department of Earth and Environmental Sciences, Kasteelpark Arenberg 20 Bus 2459, 3001, Leuven, Belgium.
| | - Yves Thiry
- Andra Research and Development Division, 1-7 rue Jean-Monnet, 92298, Châtenay-Malabry, France
| | - Erik Smolders
- KU Leuven, Department of Earth and Environmental Sciences, Kasteelpark Arenberg 20 Bus 2459, 3001, Leuven, Belgium
| |
Collapse
|
22
|
Besold J, Eberle A, Noël V, Kujala K, Kumar N, Scheinost AC, Pacheco JL, Fendorf S, Planer-Friedrich B. Antimonite Binding to Natural Organic Matter: Spectroscopic Evidence from a Mine Water Impacted Peatland. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:10792-10802. [PMID: 31436960 DOI: 10.1021/acs.est.9b03924] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Peatlands and other wetlands are sinks for antimony (Sb), and solid natural organic matter (NOM) may play an important role in controlling Sb binding. However, direct evidence of Sb sequestration in natural peat samples is lacking. Here, we analyzed solid phase Sb, iron (Fe), and sulfur (S) as well as aqueous Sb speciation in three profiles up to a depth of 80 cm in a mine water impacted peatland in northern Finland. Linear combination fittings of extended X-ray absorption fine structure spectra showed that Sb binding to Fe phases was of minor importance and observed only in the uppermost layers of the peatland. Instead, the dominant (to almost exclusive) sequestration mechanism was Sb(III) binding to oxygen-containing functional groups, and at greater depths, increasingly Sb(III) binding to thiol groups of NOM. Aqueous Sb speciation was dominated by antimonate, while antimonite concentrations were low, further supporting our findings of much higher reactivity of Sb(III) than Sb(V) toward peat surfaces. Insufficient residence time for efficient reduction of antimonate to antimonite currently hinders higher Sb removal in the studied peatland. Overall, our findings imply that Sb(III) binding to solid NOM acts as an important sequestration mechanism under reducing conditions in peatlands and other high-organic matter environments.
Collapse
Affiliation(s)
- Johannes Besold
- Department of Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BAYCEER) , Bayreuth University , 95440 Bayreuth , Germany
| | - Anne Eberle
- Department of Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BAYCEER) , Bayreuth University , 95440 Bayreuth , Germany
| | - Vincent Noël
- Stanford Synchrotron Radiation Lightsource , SLAC National Accelerator Laboratory , Menlo Park , California 94025 , United States
| | - Katharina Kujala
- Water Resources and Environmental Engineering Research Unit , University of Oulu , FI-90014 , Oulu , Finland
| | - Naresh Kumar
- Department of Geological Sciences, School of Earth, Energy, and Environmental Sciences , Stanford University , Stanford , California 94305 , United States
- Department of Environmental Geosciences, Centre for Microbiology and Environmental Systems Science , University of Vienna , 1090 Vienna , Austria
| | - Andreas C Scheinost
- The Rossendorf Beamline (ROBL) at ESRF, 38043 Grenoble, France and Helmholtz-Zentrum Dresden-Rossendorf (HZDR) , Institute of Resource Ecology , Bautzner Landstraße 400 , 01328 Dresden , Germany
| | - Juan Lezama Pacheco
- Department of Earth System Science, School of Earth, Energy, and Environmental Sciences , Stanford University , Stanford , California 94305 , United States
| | - Scott Fendorf
- Department of Earth System Science, School of Earth, Energy, and Environmental Sciences , Stanford University , Stanford , California 94305 , United States
| | - Britta Planer-Friedrich
- Department of Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BAYCEER) , Bayreuth University , 95440 Bayreuth , Germany
| |
Collapse
|
23
|
Biswas A, Besold J, Sjöstedt C, Gustafsson JP, Scheinost AC, Planer-Friedrich B. Complexation of Arsenite, Arsenate, and Monothioarsenate with Oxygen-Containing Functional Groups of Natural Organic Matter: An XAS Study. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:10723-10731. [PMID: 31436974 DOI: 10.1021/acs.est.9b03020] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Arsenic (As) is reported to be effectively sorbed onto natural organic matter (NOM) via thiol coordination and polyvalent metal cation-bridged ternary complexation. However, the extent of sorption via complexation with oxygen-containing functional groups of NOM is poorly understood. By equilibrating arsenite, arsenate, and monothioarsenate with purified model-peat, followed by As K-edge X-ray absorption spectroscopic analysis, this study shows that complexation with oxygen-containing functional groups can be an additional or alternative mode of As sorption to NOM. The extent of complexation was highest for arsenite, followed by monothioarsenate and arsenate. Complexation was higher at pH 7.0 compared to 4.5 for arsenite and arsenate and vice versa for monothioarsenate because of partial transformation to arsenite at pH 4.5. Modeling of the As K-edge extended X-ray absorption fine structure data revealed that As···C interatomic distances were relatively longer in arsenate- (2.83 ± 0.01 Å) and monothioarsenate-treated peat (2.80 ± 0.02 Å) compared to arsenite treatments (2.73 ± 0.01 Å). This study suggests that arsenite was predominantly complexed with carboxylic groups, whereas arsenate and monothioarsenate were complexed with alcoholic groups of the peat. This study further implies that in systems, where NOM is the major sorbent, arsenate and monothioarsenate can have higher mobility than arsenite.
Collapse
Affiliation(s)
- Ashis Biswas
- Department of Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BAYCEER) , Bayreuth University , 95440 Bayreuth , Germany
- Department of Earth and Environmental Sciences , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal Bypass Road , 462066 Bhauri , Madhya Pradesh , India
| | - Johannes Besold
- Department of Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BAYCEER) , Bayreuth University , 95440 Bayreuth , Germany
| | - Carin Sjöstedt
- Department of Soil and Environment , Swedish University of Agricultural Sciences , Box 7014, 750 07 Uppsala , Sweden
| | - Jon Petter Gustafsson
- Department of Soil and Environment , Swedish University of Agricultural Sciences , Box 7014, 750 07 Uppsala , Sweden
| | - Andreas C Scheinost
- The Rossendorf Beamline (ROBL) at ESRF , 38043 Grenoble , France
- Institute of Resource Ecology , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) , Bautzner Landstraße 400 , 01328 Dresden , Germany
| | - Britta Planer-Friedrich
- Department of Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BAYCEER) , Bayreuth University , 95440 Bayreuth , Germany
| |
Collapse
|
24
|
Adusei-Gyamfi J, Ouddane B, Rietveld L, Cornard JP, Criquet J. Natural organic matter-cations complexation and its impact on water treatment: A critical review. WATER RESEARCH 2019; 160:130-147. [PMID: 31136847 DOI: 10.1016/j.watres.2019.05.064] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/18/2019] [Accepted: 05/20/2019] [Indexed: 06/09/2023]
Abstract
The quality and quantity of natural organic matter (NOM) has been observed to evolve which poses challenges to water treatment facilities. Even though NOM may not be toxic itself, its presence in water has aesthetic effects, enhances biological growth in distribution networks, binds with pollutants and controls the bioavailability of trace metals. Even though NOM has heterogeneous functional groups, the predominant ones are the carboxyl and the phenolic groups, which have high affinities for metals depending on the pH. The properties of both the NOM and the trace elements influence the binding kinetics and preferences. Ca2+ prefers to bind with the carboxylic groups especially at a low pH while Zn2+ prefers the amine groups though practically, most cations bind to several functions groups. The nature of the chemical environment (neighboring ligands) the ligand finds itself equally influences its preference for a cation. The presence of NOM, cations or a complex of NOM-cations may have significant impact on the efficiency of water processes such as coagulation, adsorption, ion exchange resin and membrane filtration. In coagulation, the complexation between the coagulant salts and NOM helps to remove NOM from solution. This positive influence can further be enhanced by the addition of Ca2+. A negative influence is however, observed in lime-softening method as NOM complexes with Ca2+. A negative influence is also seen in membrane filtration where divalent cations partially neutralize the carboxyl functional groups of NOM thereby reducing the repulsion effect on NOM and increasing membrane fouling. The formation of disinfection by-products could either be increased or reduced during chlorination, the speciation of products formed is modified with generally the enhancement of haloacetic acid formation observed in presence of metal cations. This current work, presents in details the interactions of cations and NOM in the environment, the preference of cations for each functional group and the possible competition between cations for binding sites, as well as the possible impacts of the presence of cations, NOM, or their complex on water treatment processes.
Collapse
Affiliation(s)
- Junias Adusei-Gyamfi
- Univ. Lille CNRS, UMR 8516 - LASIR, Equipe Physico-Chimie de L'Environnement, F-59000, Lille, France; Delft University of Technology - Faculty of Civil Engineering and Geosciences - Department of Water Management, the Netherlands
| | - Baghdad Ouddane
- Univ. Lille CNRS, UMR 8516 - LASIR, Equipe Physico-Chimie de L'Environnement, F-59000, Lille, France
| | - Luuk Rietveld
- Delft University of Technology - Faculty of Civil Engineering and Geosciences - Department of Water Management, the Netherlands
| | - Jean-Paul Cornard
- Univ. Lille CNRS, UMR 8516 - LASIR, Equipe Physico-Chimie de L'Environnement, F-59000, Lille, France
| | - Justine Criquet
- Univ. Lille CNRS, UMR 8516 - LASIR, Equipe Physico-Chimie de L'Environnement, F-59000, Lille, France.
| |
Collapse
|