Vertical accumulation of potential toxic elements in a semiarid system that is influenced by an abandoned gold mine

Sánchez-Martínez, Martha A.; Marmolejo-Rodríguez, Ana J.; Magallanes-Ordóñez, Víctor R.; Sánchez-González, Alberto

doi:10.1016/j.ecss.2013.03.017

Cited by 15 publications

(7 citation statements)

References 35 publications

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“…The concentrations of As in sediments in the Zloty Stok and Zeleniak gold ore mines in southwest Poland, were also high (Krysiak and Karczewska 2007), and were similar to those in the El Triunfo gold mining village (Marmolejo-Rodríguez et al 2011;Sánchez-Martínez et al 2013) in the next hydrographic basin. Arsenic concentrations in stream sediments in the LPHB study area were highest at Site 11 (10,754 mg kg -1 ) and at Site 49 (118,843 mg kg -1 ).…”

Section: Sediment Grain Size and Their Relationship With As Concentramentioning

confidence: 53%

“…In this semiarid system, the stream has been dry for years, and the tailings are not very acidic (pH [6) (Romero-Guadarrama 2011) compared with the fluvial sediments (pH\2.6) (Romero et al 2010). In our study, the Fe concentrations in the tailings were high (9.0 ± 5.0 %; Sánchez-Martínez et al 2013), which means that there is enough Fe for adsorption and transportation of As. This can be realised in association with stable mineral phases, as was reported by Eapaea et al (2007) in a gold mine in Australia where As was retained in sediment in the Fe-As form.…”

Section: Sediment Grain Size and Their Relationship With As Concentramentioning

confidence: 74%

“…Recent studies of this region, some of which have focused on the ECHB, have examined the processes that control As mobilisation from mining waste deposits into the wider environment (Posada-Ayala 2011; RomeroGuadarrama 2011;Marmolejo-Rodríguez et al 2011;Sánchez-Martínez et al 2013). This present study however, includes an assessment of the enrichment of As in fluvial sediments and the influence of these As-enriched fluvial sediments on the marine environment.…”

Section: Study Areamentioning

confidence: 90%

“…,Carrillo-Chávez et al (2000),Volke-Sepúlveda et al (2003),Marmolejo-Rodríguez et al (2011), andSánchez- Martínez et al (2013). The gold ore in this area is in veins and the impacts of its extraction were very obvious in a nearby town in the El Triunfo hydrographical basin, where As concentrations of 505,000 mg kg -1 were reported in the chimney ashes from the smelting plant (Marmolejo-…”

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confidence: 94%

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Arsenic from gold mining in marine and stream sediments in Baja California Sur, Mexico

et al. 2016

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The environmental impacts associated with arsenic (As) from historical mining areas may persist for many years. We evaluated the influence of As in smelter and tailing wastes from a historic gold mine near San Antonio in the south-east of the Baja California, Mexico, on fluvial and marine sediments in the San Juan de Los Planes Basin and La Ventana Bay, respectively. Arsenic levels in the smelter and in the surrounding tailing wastes ranged from 82,000 to 208,000 mg kg -1 , and from 4220 to 92,000 mg kg -1 , respectively. The As concentrations in fluvial sediments were much lower, as these derived from wastes that had been scattered and had been subject to weathering for some time. As concentrations in surface sediments in the San Antonio stream close to the smelter and further downstream ranged from 477 to 1100 mg kg -1 , and from 64 to 613 mg kg -1 , respectively. As concentrations were between 0.05 and 9 mg kg -1 in surface shelf sediments from the coast adjacent to La Ventana Bay; the concentration was highest in sediment collected close to the outlet of the main stream (La Bocana) of the Los Planes Basin. The As concentrations in all the solid waste samples from near San Antonio exceeded the Effect Range Medium (ERM) of the Sediment Quality Guidelines (70 mg kg -1 ). Overall, 71 and 43 % of the stream samples exceeded the Effect Range Low (ERL; 8.2 mg kg -1 ), and the ERM, respectively, indicating potential risks for biota and humans.

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Section: Sediment Grain Size and Their Relationship With As Concentramentioning

confidence: 53%

Section: Sediment Grain Size and Their Relationship With As Concentramentioning

confidence: 74%

Section: Study Areamentioning

confidence: 90%

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confidence: 94%

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Arsenic from gold mining in marine and stream sediments in Baja California Sur, Mexico

et al. 2016

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“…The health risks posed to biota from heavy metals is high because they are not chemically and biologically degradable, so they will remain in the environment after disposal. Additionally, their concentrations in higher organisms may increase via the trophic chain, especially causing health problems in humans (Trivedi and Axe 2000, ATSDR 2005, USEPA 2007, Sánchez et al 2013. In order to comply with the guidelines of environmental regulatory agencies, various methodologies have been employed to remove metal ions from aqueous contaminated environments.…”

Section: Introductionmentioning

confidence: 99%

CHARACTERIZATION AND SURFACE REACTIVITY OF NATURAL AND SYNTHETIC MAGNETITES: II. ADSORPTION OF Pb(II) AND Zn(II)

Camacho

Peñalosa

2017

Rev. Int. Contam. Ambie.

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Two synthetic and three natural magnetite samples that were obtained from an iron ore deposit located in Central-Western Mexico, were used to investigate the magnetite surface reactivity of different particle sizes towards aqueous Pb(II) and Zn(II). From these, the synthetic samples < 50 nm [specific surface area (SSA)] = 39.3 m 2 /g), < 5 mm (SSA = 7.3 m 2 /g), and natural samples 948-fine (SSA = 7.6 m 2 /g), 948 (SSA = 3.0 m 2 /g) and 996 (SSA = 1.4 m 2 /g), successfully removed Pb(II) from aqueous solutions at the investigated pH value of 5.8, but only the three first, finer magnetites removed significant aqueous Zn(II) at pH 7.0. The adsorption kinetics data were fitted using pseudo-second order and intraparticle models. The Pb(II) adsorption capacities were 140. 1, 33.3, 65.4, 69.8 and 17.0 mmol/g, for samples < 50 nm, < 5 mm, 948-fine, 948 and 996, respectively, while for Zn(II) they were 159.2, 38.8 and 28.2 mmol/g, for the first three previous samples, respectively. These adsorption capacities suggest that magnetite may play an important role as adsorbents of cationic contaminants in the environment, or that it may be used as efficient remediating agent, but it's limited to particle sizes with specific surface areas above 3 m 2 /g.Palabras clave: cinética, metales, remoción, agregación, nanopartículas, óxidos de hierro RESUMEN Dos muestras de magnetita sintética y tres naturales, que fueron obtenidas de un yacimiento minero ubicado en el centro-occidente de México, se utilizaron para investigar la reactividad superficial de magnetitas de diferentes tamaños de partícula hacia Pb(II) y Zn(II). Los resultados mostraron que las magnetitas sintéticas < 50 nm [área superficial específica (ASE) ] = 39.3 m 2 /g), < 5 mm (ASE = 7.3 m 2 /g), y las naturales 948-fina (ASE = 7.6 m 2 /g), 948 (ASE = 3.0 m 2 /g) y 996 (ASE = 1.4 m 2 /g), removieron exitosamente Pb(II) en disolución acuosa al pH investigado de 5.8, pero sólo las primeras tres magnetitas más finas removieron significativamene también Zn(II) acuoso a pH 7.0. Los datos de cinética de adsorción se ajustaron utilizando los modelos de pseudosegundo orden y difusión intrapartícula. Las capacidades de adsorción para Pb(II) fueron de 140.1, 33.3, 65.4, 69.8 y 17.0 mmol/g, para las muestras < 50 nm, < 5 mm, Rev. Int. Contam. Ambie. 33 (1) 165-176, 2017 DOI: 10.20937/RICA.2017 C. A. Salazar Camacho and M. Villalobos Peñalosa 166 948-fina, 948 y 996, respectivamente. Mientras que para Zn(II) fueron 159.2, 38.8 y 28.2 mmol/g, para las tres primeras anteriores, respectivamente. Estos valores de capacidad de retención sugieren que la magnetita puede desempeñar un papel importante como adsorbente de contaminantes catiónicos en el ambiente, o puede ser utilizada como adsorbente eficiente en esquemas de remediación, pero está limitada a tamaños de partícula de áreas superficiales específicas por arriba de 3 m 2 /g.

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Trace Element Scavenging in Dry Wash Surficial Sediments in an Arid Region of Southern Nevada, USA

et al. 2015

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Vertical accumulation of potential toxic elements in a semiarid system that is influenced by an abandoned gold mine

Cited by 15 publications

References 35 publications

Arsenic from gold mining in marine and stream sediments in Baja California Sur, Mexico

Arsenic from gold mining in marine and stream sediments in Baja California Sur, Mexico

CHARACTERIZATION AND SURFACE REACTIVITY OF NATURAL AND SYNTHETIC MAGNETITES: II. ADSORPTION OF Pb(II) AND Zn(II)

Trace Element Scavenging in Dry Wash Surficial Sediments in an Arid Region of Southern Nevada, USA

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