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Wang Y, Chen W, Gu X, Zhou D. Comparison of the arsenic protective effects of four nanomaterials on pakchoi in an alkaline soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168918. [PMID: 38040373 DOI: 10.1016/j.scitotenv.2023.168918] [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: 09/22/2023] [Revised: 11/16/2023] [Accepted: 11/25/2023] [Indexed: 12/03/2023]
Abstract
Accurately applying engineered nanoparticles (NPs) in farmland stress management is important for sustainable agriculture and food safety. We investigated the protective effects of four engineered NPs (SiO2, CeO2, ZnO, and S) on pakchoi under arsenic (As) stress using pot experiments. The results showed that CeO2, SiO2, and S NPs resulted in biomass reduction, while ZnO NPs (100 and 500 mg kg-1) significantly increased shoot height. Although 500 mg kg-1 S NPs rapidly dissolved to release SO42-, reducing soil pH and pore water As content and further reducing shoot As content by 21.6 %, the growth phenotype was inferior to that obtained with 100 mg kg-1 ZnO NPs, probably due to acid damage. The addition of 100 mg kg-1 ZnO NPs not only significantly reduced the total As content in pakchoi by 23.9 % compared to the As-alone treatment but also enhanced plant antioxidative activity by increasing superoxide dismutase (SOD) and peroxidase (POD) activities and decreasing malondialdehyde (MDA) content. ZnO NPs in soil might inhibit As uptake by roots by increasing the dissolved organic carbon (DOC) by 19.12 %. According to the DLVO theory, ZnO NPs were the most effective in preventing As in pore water from entering plant roots due to their smaller hydrated particle size. Redundancy analysis (RDA) further confirmed that DOC and SO42- were the primary factors controlling plant As uptake under the ZnO NP and S NP treatments, respectively. These findings provide an important basis for the safer and more sustainable application of NP-conjugated agrochemicals.
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Affiliation(s)
- Yaoyao Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China
| | - Wanli Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China
| | - Xueyuan Gu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China.
| | - Dongmei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China
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2
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Chen M, Sun Y, Niu J, Zhou H, Zhou Y, Chen X. As(V) adsorption by FeOOH@coal gangue composite from aqueous solution: performance and mechanisms. ENVIRONMENTAL TECHNOLOGY 2023:1-12. [PMID: 37609908 DOI: 10.1080/09593330.2023.2251655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 04/22/2023] [Indexed: 08/24/2023]
Abstract
Arsenic (As) pollution in water poses a significant threat to the ecological environment and human health. Meanwhile, the resource utilisation of coal gangue is of utmost importance in ecologically sustainable development. Thus, the FeOOH@coal gangue composite (FeOOH@CG) was synthesised for As(V) adsorption in this study. The results showed that α-FeOOH, β-FeOOH and Schwertmannite loaded on the surface of FeOOH@CG. Moreover, the adsorption behaviour of As(V) by FeOOH@CG was investigated under different reaction conditions, such as pH, contact time, initial concentration and co-existing anions. The optimum adsorption conditions were as follows: initial As(V) concentration of 60 mg/L, pH of 3.0 and adsorption time of 180-240 h. The adsorption capacity of FeOOH@CG for As(V) was pH-dependent and the maximum adsorption capacity was 185.94 mg/g. The presence of anions (H 2 PO 4 - , HCO 3 - and C l - ) decreased the adsorption efficiency of FeOOH@CG for As(V). The adsorption process of FeOOH@CG for As(V) could be well-described by the pseudo-second-order model and Langmuir model, indicating that the adsorption process mainly depended on chemical adsorption. The thermodynamic analysis suggested that the adsorption was a spontaneous and endothermic process. In addition, according to the analyses of XRD, FTIR and XPS, the dominant mechanisms of As(V) adsorption by FeOOH@CG were electrostatic attraction, complexation and precipitation. In conclusion, FeOOH@CG has great potential as an efficient and environmentally friendly adsorbent for As(V) adsorption from aqueous solution.
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Affiliation(s)
- Min Chen
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China
- Taizhou Institute of Zhejiang University, Zhejiang University, Taizhou, People's Republic of China
| | - Yuan Sun
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China
| | - Jingwei Niu
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China
| | - Hai Zhou
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China
| | - Yuzhi Zhou
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China
- Anhui Engineering Laboratory for Comprehensive Utilization of Water and Soil Resources & Ecological Protection in Mining Area with High Groundwater Level, Huainan, People's Republic of China
| | - Xiaoyang Chen
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China
- Anhui Engineering Laboratory for Comprehensive Utilization of Water and Soil Resources & Ecological Protection in Mining Area with High Groundwater Level, Huainan, People's Republic of China
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Tang L, Liu J, Zeng J, Luo X, Ke W, Li C, Gao W, Jiang J, Xue S. Anthropogenic processes drive heterogeneous distributions of toxic elements in shallow groundwater around a smelting site. JOURNAL OF HAZARDOUS MATERIALS 2023; 453:131377. [PMID: 37054642 DOI: 10.1016/j.jhazmat.2023.131377] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/27/2023] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
Smelting activities have a far-reaching influence on the quality of soil and groundwater, while most studies have neglected the information on the pollution characteristics of groundwater. The hydrochemical parameters of shallow groundwater and the spatial distributions of toxic elements were investigated in this study. Correlations analysis and groundwater evolution revealed that the major ions were primarily determined by silicate weathering and calcite dissolution process, and anthropogenic processes had a significant effect on groundwater hydrochemistry. Almost 79%, 71%, 57%, 89%, 100%, and 78.6% of samples exceeded the standards of Cd, Zn, Pb, As, SO42-, and NO3-, and their distribution is closely related to the production process. Analysis of soil geochemistry indicated that the relatively mobile forms of toxic elements strongly influence the origin and concentration in shallow groundwater. Besides, rainfall with high magnitude would lead to a decrease of toxic elements in shallow groundwater, whereas the area once stacked waste residue was the opposite. It is recommended to strengthen risk management of the limited mobility fraction while devising a plan for waste residue treatment in accordance with the local pollution conditions. The research on controlling the mechanism of toxic elements in shallow groundwater, along with sustainable development in the study area and other smelting zones may benefit from this study.
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Affiliation(s)
- Lu Tang
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Jie Liu
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Jiaqing Zeng
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Xinghua Luo
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Wenshun Ke
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Chuxuan Li
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Wenyan Gao
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Jun Jiang
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Shengguo Xue
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China; Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, PR China.
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Wang Z, Liu W, Zhang C, Liu X, Liang X, Liu R, Zhao Y. Mechanisms of S cooperating with Fe and Mn to regulate the conversion of Cd and Cu during soil redox process revealed by LDHs-DGT technology. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 867:161431. [PMID: 36626998 DOI: 10.1016/j.scitotenv.2023.161431] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/07/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
The activity changes of Cd and Cu in paddy field were strongly influenced by the transformation of S, Fe and Mn species. However, in the process of soil redox, how S cooperates with Fe/Mn to regulate the law and mechanism of Cd and Cu speciation transformation still needs to be studied. In this study, we used DGT technology based on layer double hydroxides (LDHs) combined with pore water sampling to investigate soil redox changes, rice growth, and the effects of different forms of sulfur (S0, SO42-) on soil Cd and Cu activities. The results showed that the concentrations of CDGT-Cd and Cu in the soil decreased rapidly in the anaerobic stage, but increased slowly in the oxidative stage. Multiple regression analysis showed that the changes of Cu and Cd concentrations mainly depended on the changes of Fe/Mn morphology. Sulfur treatment promoted the dissolution of Fe/Mn oxides in the short term (<48 h), and the activities of CDGT-Fe, Mn, and Cd increased simultaneously, but CDGT-Cu was not affected. However, after long-term anaerobic conditions (>10 d), sulfur addition reduced the activities of CDGT-Cd and Cu, and decreased the uptake of Cd and Cu by rice. During sulfate reduction, the sulfur addition treatment group resulted in a 24.5-50.2 % decrease in CDGT-Fe, indicating that sulfur addition may delay the release of Cd and Cu after rice planting by promoting the formation of FeS/FeS2. In addition, in the anaerobic stage, Cu formed sulfide before Cd and was fixed, and the higher thermodynamic stability of CuS would promote the dissolution of CdS in the oxidation stage. Overall, soil flooding with sulfur to enhance the generation of metal sulfides and secondary iron ores provides an opportunity to use sulfur as an environmentally friendly modifier to coordinate Fe, Mn to improve heavy metal-contaminated soils.
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Affiliation(s)
- Zhen Wang
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Wenjing Liu
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Chuangchuang Zhang
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Xiaowei Liu
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Xuefeng Liang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Rongle Liu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Yujie Zhao
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China.
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Shi W, Xu Y, Wu W, Zeng XC. Biological effect of phosphate on the dissimilatory arsenate-respiring bacteria-catalyzed reductive mobilization of arsenic from contaminated soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 308:119698. [PMID: 35787423 DOI: 10.1016/j.envpol.2022.119698] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 06/24/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
Dissimilatory arsenate-respiring prokaryotes (DARPs) are considered to be the major drive of the reductive mobilization of arsenic from solid phases. However, it is not fully understood how phosphate, a structural analog of arsenate, affects the DARPs-mediated arsenic mobilization. This work aimed to address this issue. As-contaminated soils were collected from a Shimen Realgar Mine-affected area. We identified a unique diversity of DARPs from the soils, which possess high As(V)-respiring activities using one of multiple small organic acids as the electron donor. After elimination of the desorption effect of phosphate on the As mobilization, the supplement of additional 10 mM phosphate to the active slurries markedly increased the microbial community-mediated reductive mobilization of arsenic as revealed by microcosm tests; this observation was associated to the fact that phosphate significantly increased the As(V)-respiratory reductase (Arr) gene abundances in the slurries. To confirm this finding, we further obtained a new DARP strain, Priestia sp. F01, from the samples. We found that after elimination of the chemical effect of phosphate, the supplement of 10 mM phosphate to the active slurries resulted in an 82.2% increase of the released As(III) in the solutions, which could be contributed to that excessive phosphate greatly increased the Arr gene abundance, and enhanced the transcriptional level of arrA gene and the bacterial As(V)-respiring activity of F01 cells. Considering that phosphate commonly coexists with As in the environment, and is a frequently-used fertilizer, these findings are helpful for deeply understanding why As concentrations in contaminated groundwater are dynamically fluctuated, and also provided new knowledge on the interactions between the biogeochemical processes of P and As.
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Affiliation(s)
- Wanxia Shi
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences (Wuhan), People's Republic of China; Ecological Restoration and Landscape Design Research Center, China University of Geosciences (Wuhan), People's Republic of China
| | - Yifan Xu
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences (Wuhan), People's Republic of China
| | - Weiwei Wu
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences (Wuhan), People's Republic of China
| | - Xian-Chun Zeng
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences (Wuhan), People's Republic of China.
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Yin Y, Luo X, Guan X, Zhao J, Tan Y, Shi X, Luo M, Han X. Arsenic Release from Soil Induced by Microorganisms and Environmental Factors. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19084512. [PMID: 35457378 PMCID: PMC9027750 DOI: 10.3390/ijerph19084512] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 12/10/2022]
Abstract
In rhizospheric soil, arsenic can be activated by both biological and abiotic reactions with plant exudates or phosphates, but little is known about the relative contributions of these two pathways. The effects of microorganisms, low-molecular-weight organic acid salts (LMWOASs), and phosphates on the migration of As in unrestored and nano zero-valent iron (nZVI)-restored soil were studied in batch experiments. The results show that As released by microbial action accounted for 17.73%, 7.04%, 92.40%, 92.55%, and 96.68% of the total As released in unrestored soil with citrate, phytate, malate, lactate, and acetate, respectively. It was only suppressed in unrestored soil with oxalate. In restored soil, As was still released in the presence of oxalate, citrate, and phytate, but the magnitude of As release was inhibited by microorganisms. The application of excess nZVI can completely inhibited As release processes induced by phosphate in the presence of microorganisms. Microbial iron reduction is a possible mechanism of arsenic release induced by microorganisms. Microorganisms and most environmental factors promoted As release in unrestored soil, but the phenomenon was suppressed in restored soil. This study helps to provide an effective strategy for reducing the secondary release of As from soils due to replanting after restoration.
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Affiliation(s)
- Yitong Yin
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China; (Y.Y.); (X.G.); (J.Z.); (Y.T.); (X.S.); (M.L.); (X.H.)
| | - Ximing Luo
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China; (Y.Y.); (X.G.); (J.Z.); (Y.T.); (X.S.); (M.L.); (X.H.)
- Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences (Beijing), Beijing 100083, China
- Correspondence:
| | - Xiangyu Guan
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China; (Y.Y.); (X.G.); (J.Z.); (Y.T.); (X.S.); (M.L.); (X.H.)
- Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences (Beijing), Beijing 100083, China
| | - Jiawei Zhao
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China; (Y.Y.); (X.G.); (J.Z.); (Y.T.); (X.S.); (M.L.); (X.H.)
| | - Yuan Tan
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China; (Y.Y.); (X.G.); (J.Z.); (Y.T.); (X.S.); (M.L.); (X.H.)
| | - Xiaonan Shi
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China; (Y.Y.); (X.G.); (J.Z.); (Y.T.); (X.S.); (M.L.); (X.H.)
| | - Mingtao Luo
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China; (Y.Y.); (X.G.); (J.Z.); (Y.T.); (X.S.); (M.L.); (X.H.)
| | - Xiangcai Han
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China; (Y.Y.); (X.G.); (J.Z.); (Y.T.); (X.S.); (M.L.); (X.H.)
- Yantai Coastal Zone China Geological Survey, Yantai 264000, China
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Chen M, Liu Y, Zhang D, Zhu J, Chen X, Yuan L. Remediation of arsenic-contaminated paddy soil by iron oxyhydroxide and iron oxyhydroxide sulfate-modified coal gangue under flooded condition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 804:150199. [PMID: 34520918 DOI: 10.1016/j.scitotenv.2021.150199] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/03/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
Flooded condition enhances arsenic (As) mobility in paddy soils, posing an imminent threat to food safety and human health. Hence, iron oxyhydroxide and iron oxyhydroxide sulfate-modified coal gangue (CG-FeOH and CG-FeOS) were synthesized for remediation of As-contaminated paddy soils under a flooded condition. Compared to the control, CG-FeOH and CG-FeOS application decreased the soil pH by 0.10-0.80 and 0.13-1.63 units, respectively. CG-FeOH and CG-FeOS application significantly (P < 0.05) decreased available As concentration by 13.46-43.44% and 21.31-54.37%, respectively. CG-FeOH and CG-FeOS significantly (P < 0.05) reduced the non-specifically adsorbed and specifically adsorbed As fractions and increased As(V) proportion by 22.61-26.53% and 29.10-36.51%, respectively. Our results showed that CG-FeOH and CG-FeOS could change As geochemical fraction and valence state, consequently reducing available As concentration in paddy soils. Moreover, the sulfate could enhance the oxidation and co-precipitation of As with CG-FeOH. Compared to CG-FeOH, CG-FeOS was more effective in decreasing available As concentration and oxidizing As(III) to As(V). This study revealed that CG-FeOS is a potential amendment for As immobilization in paddy soils.
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Affiliation(s)
- Min Chen
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China; School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China; Institute of Environment-friendly Materials and Occupational Health, Anhui University of Science and Technology, Wuhu 241003, China
| | - Ying Liu
- School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China; Anhui Engineering Laboratory for Comprehensive Utilization of Water and Soil Resources & Ecological Protection in Mining Area with High Groundwater Level, Huainan 232001, China
| | - Di Zhang
- School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China
| | - Jianming Zhu
- School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China
| | - Xiaoyang Chen
- School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China; Anhui Engineering Laboratory for Comprehensive Utilization of Water and Soil Resources & Ecological Protection in Mining Area with High Groundwater Level, Huainan 232001, China.
| | - Liang Yuan
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China.
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Sowers TD, Nelson CM, Blackmon MD, Jerden ML, Kirby AM, Diamond GL, Bradham KD. Interconnected soil iron and arsenic speciation effects on arsenic bioaccessibility and bioavailability: a scoping review. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2022; 25:1-22. [PMID: 34706629 PMCID: PMC9850428 DOI: 10.1080/10937404.2021.1996499] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Extensive research has examined arsenic (As) bioavailability in contaminated soils and is routinely assessed using in vitro bioaccessibility (IVBA) assays. Analysis of differences in bioaccessibility measurements across IVBA assays and phases is expected to provide valuable insights into geochemical mechanisms controlling soil As bioaccessibility and bioavailability. Soil iron (Fe) content and As speciation are expected to significantly influence IVBA gastric and intestinal phases due to fluctuations in precipitation-dissolution chemistry and sorption reactivity as pH and assay chemical complexity changes. The aim of this review was to examine these relationships by 1) conducting a meta-analysis (n = 47 soils) determining the influence of total Fe on As bioaccessibility measurements and 5 IVBA assays and 2) investigating the effect of As speciation on gastric/intestinal phase IVBA and in vitro-in vivo correlations. Our findings indicate that soil Fe content and As speciation heterogeneity are important in elucidating variability of bioaccessibility measurements across IVBA assays and gastrointestinal phases. Greater focus on coupled As speciation and Fe precipitation chemistry may (1) improve our understanding of soil geochemical factors and assay constituents that influence As in vitro-in vivo correlations and (2) resolve variability in the precision of oral relative bioavailability (RBA) estimated using IVBA assays for soils possessing heterogenous As speciation and Fe composition.
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Affiliation(s)
- Tyler D Sowers
- Center of Environmental Measurement and Modeling, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC, US
| | | | - Matthew D Blackmon
- Center of Environmental Measurement and Modeling, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC, US
| | | | | | | | - Karen D Bradham
- Center of Environmental Measurement and Modeling, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC, US
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9
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Wu J, Liang J, Björn LO, Li J, Shu W, Wang Y. Phosphorus-arsenic interaction in the 'soil-plant-microbe' system and its influence on arsenic pollution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 802:149796. [PMID: 34464787 DOI: 10.1016/j.scitotenv.2021.149796] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 07/08/2021] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Abstract
Elevated arsenic (As) in soil is of public concern due to the carcinogenicity. Phosphorus (P) strongly influences the adsorption, absorption, transport, and transformation of As in the soil and in organisms due to the similarity of the chemical properties of P and As. In soil, P, particularly inorganic P, can release soil-retained As (mostly arsenate) by competing for adsorption sites. In plant and microbial systems, P usually reduces As (mainly arsenate) uptake and affects As biotransformation by competing for As transporters. The intensity and pattern of PAs interaction are highly dependent on the forms of As and P, and strongly influenced by various biotic and abiotic factors. An understanding of the PAs interaction in 'soil-plant-microbe' systems is of great value to prevent soil As from entering the human food chain. Here, we review PAs interactions and the main influential factors in soil, plant, and microbial subsystems and their effects on the As release, absorption, transformation, and transport in the 'soil-plant-microbe' system. We also analyze the application potential of P fertilization as a control for As pollution and suggest the research directions that need to be followed in the future.
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Affiliation(s)
- Jingwen Wu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitor, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Jieliang Liang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitor, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Lars Olof Björn
- Department of Biology, Lund University, Lund SE-22362, Sweden
| | - Jintian Li
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitor, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Wensheng Shu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitor, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Yutao Wang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitor, School of Life Sciences, South China Normal University, Guangzhou 510631, China.
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10
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Zama EF, Li G, Tang YT, Reid BJ, Ngwabie NM, Sun GX. The removal of arsenic from solution through biochar-enhanced precipitation of calcium-arsenic derivatives. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118241. [PMID: 34582918 DOI: 10.1016/j.envpol.2021.118241] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 08/13/2021] [Accepted: 09/25/2021] [Indexed: 05/22/2023]
Abstract
Arsenic (As) pollution remains a major threat to the quality of global soils and drinking water. The health effects of As pollution are often severe and have been largely reported across Asia and South America. This study investigated the possibility of using unmodified biochar derived from rice husk (RB) and aspen wood (WB) at 400 °C and 700 °C to enhance the precipitation of calcium/arsenic compounds for the removal of As(III) from solution. The approach was based on utilizing calcium to precipitate arsenic in solution and adding unmodified biochar to enhance the process. Using this approach, As(III) concentration in aqueous solution decreased by 58.1% when biochar was added, compared to 25.4% in the absence of biochar. Varying the pH from acidic to alkaline enabled an investigation into the pH dependent dynamics of the approach. Results indicated that significant precipitation was only possible at near neutral pH (i.e. pH = 6.5) where calcium arsenites (i.e. Ca(AsO2)2, and CaAsO2OH•½H2O) and arsenates (i.e. Ca5(AsO4)3OH) were precipitated and deposited as aggregates in the pores of biochars. Arsenite was only slightly precipitated under acidic conditions (pH = 4.5) while no arsenite was precipitated under alkaline conditions (pH = 9.5). Arsenite desorption from wood biochar was lowest at pH 6.5 indicating that wood biochar was able to retain a large quantity of the precipitates formed at pH 6.5 compared to pH 4.5 and pH 9.5. Given that the removal of As(III) from solution is often challenging and that biochar modification invites additional cost, the study demonstrated that low cost unmodified biochar can be effective in enhancing the removal of As(III) from the environment through Ca-As precipitation.
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Affiliation(s)
- Eric F Zama
- College of Technology, Department of Agricultural and Environmental Engineering, University of Bamenda, P.O. Box 39, Bambili, Cameroon; Zhejiang Key Lab of Urban Environmental Processes and Pollution Control, Ningbo Urban Environmental Observatory and Research Station, Chinese Academy of Science, Ningbo, 361021, China
| | - Gang Li
- Zhejiang Key Lab of Urban Environmental Processes and Pollution Control, Ningbo Urban Environmental Observatory and Research Station, Chinese Academy of Science, Ningbo, 361021, China
| | - Yu-Ting Tang
- School of Geographical Science, Faculty of Science and Engineering, University of Nottingham, Ningbo China, 315100, Ningbo, China
| | - Brian J Reid
- School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Ngwa M Ngwabie
- College of Technology, Department of Agricultural and Environmental Engineering, University of Bamenda, P.O. Box 39, Bambili, Cameroon
| | - Guo-Xin Sun
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China.
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Moulick D, Samanta S, Sarkar S, Mukherjee A, Pattnaik BK, Saha S, Awasthi JP, Bhowmick S, Ghosh D, Samal AC, Mahanta S, Mazumder MK, Choudhury S, Bramhachari K, Biswas JK, Santra SC. Arsenic contamination, impact and mitigation strategies in rice agro-environment: An inclusive insight. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149477. [PMID: 34426348 DOI: 10.1016/j.scitotenv.2021.149477] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 07/15/2021] [Accepted: 08/01/2021] [Indexed: 06/13/2023]
Abstract
Arsenic (As) contamination and its adverse consequences on rice agroecosystem are well known. Rice has the credit to feed more than 50% of the world population but concurrently, rice accumulates a substantial amount of As, thereby compromising food security. The gravity of the situation lays in the fact that the population in theAs uncontaminated areas may be accidentally exposed to toxic levels of As from rice consumption. In this review, we are trying to summarize the documents on the impact of As contamination and phytotoxicity in past two decades. The unique feature of this attempt is wide spectrum coverages of topics, and that makes it truly an interdisciplinary review. Aprat from the behaviour of As in rice field soil, we have documented the cellular and molecular response of rice plant upon exposure to As. The potential of various mitigation strategies with particular emphasis on using biochar, seed priming technology, irrigation management, transgenic variety development and other agronomic methods have been critically explored. The review attempts to give a comprehensive and multidiciplinary insight into the behaviour of As in Paddy -Water - Soil - Plate prospective from molecular to post-harvest phase. From the comprehensive literature review, we may conclude that considerable emphasis on rice grain, nutritional and anti-nutritional components, and grain quality traits under arsenic stress condition is yet to be given. Besides these, some emerging mitigation options like seed priming technology, adoption of nanotechnological strategies, applications of biochar should be fortified in large scale without interfering with the proper use of biodiversity.
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Affiliation(s)
- Debojyoti Moulick
- Plant Stress Biology and Metabolomics Laboratory Central Instrumentation Laboratory (CIL), Assam University, Silchar 788 011, India.
| | - Suman Samanta
- Division of Agricultural Physics, Indian Agricultural Research Institute, Pusa, New Delhi 110012, India.
| | - Sukamal Sarkar
- Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia 741252, West Bengal, India.
| | - Arkabanee Mukherjee
- Indian Institute of Tropical Meteorology, Dr Homi Bhabha Rd, Panchawati, Pashan, Pune, Maharashtra 411008, India.
| | - Binaya Kumar Pattnaik
- Symbiosis Institute of Geoinformatics, Symbiosis International (Deemed University), Pune, Maharashtra, India.
| | - Saikat Saha
- Nadia Krishi Vigyan Kendra, Bidhan Chandra Krishi Viswavidyalaya, Gayeshpur, Nadia 741234, West Bengal, India.
| | - Jay Prakash Awasthi
- Department of Botany, Government College Lamta, Balaghat, Madhya Pradesh 481551, India.
| | - Subhamoy Bhowmick
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India.
| | - Dibakar Ghosh
- Division of Agronomy, ICAR-Indian Institute of Water Management, Bhubaneswar 751023, Odisha, India.
| | - Alok Chandra Samal
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal, India.
| | - Subrata Mahanta
- Department of Chemistry, NIT Jamshedpur, Adityapur, Jamshedpur, Jharkhand 831014, India.
| | | | - Shuvasish Choudhury
- Plant Stress Biology and Metabolomics Laboratory Central Instrumentation Laboratory (CIL), Assam University, Silchar 788 011, India.
| | - Koushik Bramhachari
- Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia 741252, West Bengal, India.
| | - Jayanta Kumar Biswas
- Department of Ecological Studies and International Centre for Ecological Engineering, University of Kalyani, Kalyani, West Bengal, India.
| | - Subhas Chandra Santra
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal, India.
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