Article
Environmental Sciences
Saeed Bagherifam, Trevor C. Brown, Ayanka Wijayawardena, Ravi Naidu
Summary: The research evaluated the bioavailability of different Sb compounds in soils, highlighting that soil properties, Sb sources, and ageing time can greatly affect Sb bioavailability, mainly associating with recalcitrant fractions of the soils.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Stefania Diquattro, Paola Castaldi, Susie Ritch, Albert L. Juhasz, Gianluca Brunetti, Kirk G. Scheckel, Giovanni Garau, Enzo Lombi
Summary: The study found that long-term ageing reduced the mobility of Sb in soil, decreased its potential bioavailability, and lowered its bioaccessibility over time. Soil pH plays a key role in Sb potential bioavailability, with acidic conditions enhancing the effectiveness of ageing processes in alleviating Sb ecotoxicity. Despite 700 days of ageing, substantial risks of Sb mobility, potential bioavailability, and bioaccessibility remained in contaminated soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Saeed Bagherifam, Sridhar Komarneni, Eric D. van Hullebusch, Marija Stjepanovic
Summary: The study found that Fe(III)-modified montmorillonite can efficiently remove up to 95% of Sb(V) from aqueous solutions and effectively immobilize Sb(V) in soils, reducing the concentrations of Sb(V) significantly in both exchangeable fraction and distilled water extracts. Additionally, the bioaccessibility of Sb(V) in simulated human gastric juice decreased remarkably, confirming the potential of Fe-Mt for remediation of Sb(V) in terrestrial environments.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Geochemistry & Geophysics
Petr Drahota, Petra Venhauerova, Ladislav Strnad
Summary: Gold mining activities are an important source of arsenic (As) and antimony (Sb) pollution. This study investigates the distribution, speciation, and mobility of As and Sb in mining wastes and soil samples from two ore districts in the Czech Republic. The results show that As and Sb are mainly associated with secondary mineral phases and crystalline iron (hydr)oxides in the mining wastes, while in the soils, they are bound to iron (hydr)oxides and clay minerals. The leaching of As and Sb from the samples is pH-dependent and generally low, but the addition of low phosphate concentrations can increase the mobility of As. Overall, the findings highlight the potential environmental hazard of As and Sb dispersion from mining wastes through rainwater leaching.
APPLIED GEOCHEMISTRY
(2023)
Article
Environmental Sciences
Amanda J. Barker, Thomas A. Douglas, Karen J. Spaleta, Tom P. Trainor
Summary: In this study, two remediation treatments (ferric chloride/calcium carbonate and nanoscale zero-valent iron) were applied to soil columns containing different types of soils to study the behavior of lead and antimony. It was found that antimony was more mobile than lead and primarily present in the dissolved fraction, while lead was associated with soil organic matter and iron colloids. The addition of ferric chloride and calcium carbonate effectively reduced the concentration of antimony in soil, but had minimal impact on lead immobilization.
Article
Environmental Sciences
Wenjing Guo, Zhiyong Zhang, Hao Wang, Hongjie Qin, Zhiyou Fu
Summary: The study found that food intake was the major pathway for both Sb and As exposure, with rice and vegetables being significant sources. Monte Carlo simulations showed that majority of residents exceeded the threshold dosages for Sb and As intake. Sb exhibited similar internal exposure characteristics as As, but the transfer rate from environment to human body was lower for Sb. Drinking water was identified as another important pathway with high bioavailability, especially for male residents. These findings provide important information on the exposure of Sb and As in typical Sb mining areas.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Aneesah Pervaiz, Qianyun Zhong, Syed Aziz Ur Rehman, Congli Ma, Yonghong Jiao, Mengchang He
Summary: This study evaluated the Sb bioavailability and accumulation in wheat before and after remediation using composted manure and a chemical amendment. The results showed that poultry and sheep composts increased the residual fraction of Sb in soils and decreased its uptake by wheat, while the addition of limestone did not significantly affect the residual fraction of Sb. The study concluded that the addition of amended materials, especially poultry compost, significantly decreased the uptake of Sb in contaminated soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Bing Wen, Jianwei Zhou, Peidong Tang, Xiaocen Jia, Weiqing Zhou, Jianbo Huang
Summary: The Xikuangshan mine, the largest antimony mine in the world, was studied to understand the source and mobility of antimony in water systems. It was found that oxidative weathering and leaching infiltration are the main processes for antimony mobilization, along with adsorption and mixing.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Saeed Bagherifam, Trevor C. Brown, Saba Bagherifam, Andrea Baglieri
Summary: In this research, a modified sequential extraction scheme was used to isolate labile and recalcitrant soil organic matter (SOM) from organic rich soils and investigate the environmental chemistry of antimony (Sb) in SOM. The results showed that most of the Sb in organic matter was associated with humic substances and correlated significantly with total organic carbon (TOC) and nitrogen (N) contents, indicating the strong binding of Sb in SOM. The findings highlight the importance of Fe-Al-SOM bridging and recalcitrant SOM fraction in sequestering Sb.
ENVIRONMENTAL POLLUTION
(2023)
Article
Plant Sciences
Petroula Seridou, Sofia Monogyiou, Evdokia Syranidou, Nicolas Kalogerakis
Summary: This study found that Nerium oleander plants can accumulate antimony (Sb) in the roots and demonstrated that the addition of organic acids (OAs) and oxygen nanobubbles (O(2)NBs) can help the plants maintain water content and antioxidant enzyme activity. However, the translocation of Sb from the roots to the shoots was low.
Article
Engineering, Chemical
Zanlang Tang, Xincun Tang, Haonan Liu, Zeyu Xiao
Summary: In this study, a clean process for recovering antimony and synthesizing scorodite was proposed, which can efficiently separate valuable antimony from toxic arsenic and mitigate arsenic pollution caused by the metallurgical process of nonferrous metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Ariana M. A. Pintor, Catia C. Brandao, Rui A. R. Boaventura, Cidalia M. S. Botelho
Summary: The study evaluates the multicomponent adsorption of pentavalent metalloids, revealing a multilayer, heterogeneous process. Competitive interactions between different metalloids in binary and ternary systems impact the adsorption process, with Sb(V) being the most affected and P(V) the least.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Jinmei Deng, Tangfu Xiao, Wenjun Fan, Zengping Ning, Enzong Xiao
Summary: Mining activities increase the levels of antimony and arsenic in river systems, causing harmful effects on the aquatic environment and human health. The compositions of microbial communities differ between river sediments and natural wetlands, which can influence the geochemical behavior of antimony and arsenic.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yonghong Jiao, Tianning Wang, Mengchang He, Xitao Liu, Chunye Lin, Wei Ouyang
Summary: Co-contamination of metalloids in soils poses a serious threat to ecological stability and human health. A novel FeMg modified porous biochar (3FMKBC) was prepared and its stabilizing efficiency in aqueous solutions and real soils was investigated. The optimal removal performance for Sb(V) and As(V) was achieved with a 1/3 mol ratio of Fe/Mg. The 3FMKBC showed potential in limiting the migration and bioavailability of Sb and As, indicating its prospect as a material for the stabilization of metalloid co-contamination.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Nanoscience & Nanotechnology
Ning Zhang, Xiaojing Chen, Jiahao Xu, Pengfei He, Xuli Ding
Summary: In this study, hexagonal antimony nanocrystals encapsulated by phosphorus/nitrogen co-doped carbon nanofibers (Sb@P-N/C) were prepared using electrospinning method, and used as anode material for sodium ion batteries (SIBs), exhibiting unexpected cycling stability and rate capability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
P. C. S. Carvalho, A. M. R. Neiva, M. M. V. G. Silva, A. C. T. Santos
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2017)
Article
Environmental Sciences
M. Manuela Vinha G. Silva, Elsa M. C. Gomes, Malaquias Isaias, Jose Manuel M. Azevedo, Benedito Zeferino
ENVIRONMENTAL EARTH SCIENCES
(2017)
Article
Engineering, Environmental
Marina M. S. Cabral Pinto, A. Paula Marinho-Reis, Agostinho Almeida, Carlos M. Ordens, Maria M. V. G. Silva, Sandra Freitas, Mario R. Simoes, Paula I. Moreira, Pedro A. Dinis, M. Luisa Diniz, Eduardo A. Ferreira da Silva, M. Teresa Condesso de Melo
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2018)
Article
Engineering, Environmental
I. M. H. R. Antunes, A. M. R. Neiva, M. T. D. Albuquerque, P. C. S. Carvalho, A. C. T. Santos, Pedro P. Cunha
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2018)
Article
Geochemistry & Geophysics
Marina M. S. Cabral Pinto, Maria M. V. G. Silva, Eduardo A. Ferreira da Silva, Pedro A. Dinis, Fernando Rocha
JOURNAL OF GEOCHEMICAL EXPLORATION
(2017)
Article
Geochemistry & Geophysics
S. B. A. Henriques, A. M. R. Neiva, L. Tajcmanova, G. R. Dunning
Article
Environmental Sciences
M. Margarida L. C. G. Porto Gouveia, M. Manuela Vinha G. Silva, Paula C. S. Carvalho
SOIL & SEDIMENT CONTAMINATION
(2018)
Article
Soil Science
Maria Manuela Vinha G. Silva, Paula C. S. Carvalho, Adriano Antonio, Ana Catarina M. Luis
Article
Geochemistry & Geophysics
Victor A. S. Vicente, A. M. S. Joao Pratas, Frederico C. M. Santos, Maria M. V. G. Silva, Paulo J. C. Favas, Luis E. N. Conde
Summary: The geological exploration in Timor-Leste and Oecusse led to the unexpected discovery of a new ultramafic complex, the Maquelab Complex, with significant chromite deposits containing about 56% Cr2O3. This discovery was made based on the analysis of stream sediments, which showed elevated levels of chromium, nickel, and cobalt, contrary to the existing geological maps of the area.
APPLIED GEOCHEMISTRY
(2021)
Article
Environmental Sciences
Ana Barroso, Sandra Mogo, M. Manuela V. G. Silva, Victoria Cachorro, Angel de Frutos
Summary: Studies show that the mass concentration of PM10 near active mines is usually below the limit established by European regulations, but some elemental concentrations still exceed the regulatory limits, especially arsenic.
Article
Geosciences, Multidisciplinary
Maria Manuela Vinha Guerreiro Silva, Marina Marques Silva Cabral-Pinto, Pedro Dinis
Summary: The city of Kuito, located in a tropical highland region of central Angola, has experienced rapid growth in recent decades. A study comparing the physicochemical properties of natural and urban soil samples found that urban soils have higher pH and electrical conductivity, lower contents of certain elements, and higher contents of potentially toxic elements compared to natural soil. Urbanization has led to significant geochemical disturbances and enrichment in potentially toxic elements in the tropical soil of Kuito, contributing to environmental deterioration.
JOURNAL OF AFRICAN EARTH SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Margarida Antunes, Rui Teixeira, Teresa Albuquerque, Teresa Valente, Paula Carvalho, Antonio Santos
Summary: The Picoto mining area in central Portugal has experienced two phases of exploitation between 1917 and 1953, leaving behind contaminated soils and waters containing toxic elements from old mining activities. The soil is contaminated with As, Cu, and U, while the water sources are polluted with NO2, Fe, Mn, Cu, As, and U, making them unsuitable for human consumption or agricultural activities.
Article
Geosciences, Multidisciplinary
Marina M. S. Cabral Pinto, Maria M. V. G. Silva, Ana M. R. Neiva, Fernanda Guimaraes, Paulo B. Silva
Article
Geosciences, Multidisciplinary
Marina M. S. Cabral Pinto, Maria M. V. Silva, Eduardo A. Ferreira da Silva, A. Paula Marinho-Reis