Geochemical mobility of arsenic in the surficial waters from Argentina
The presence of arsenic (As) in surface water constitutes an important environmental risk, where mobility and adsorption processes are responsible for its behavior in the sediment–water interface. Therefore, the assessment of adsorption, mobility and water availability of arsenic in freshwater sedim...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_18666280_v75_n23_p_Robles |
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todo:paper_18666280_v75_n23_p_Robles2023-10-03T16:33:41Z Geochemical mobility of arsenic in the surficial waters from Argentina Robles, A.D. Polizzi, P. Romero, M.B. Chiodi Boudet, L.N. Medici, S. Costas, A. Gerpe, M. Adsorption Arsenic Mobility Surface sediment Adsorption Agriculture Arsenic Carrier mobility Manganese Soils Surface waters Adsorption process Cation exchange capacities Environmental risks Freshwater sediment Geochemical mobilities Surface sediments Water availability Water interface Sediments The presence of arsenic (As) in surface water constitutes an important environmental risk, where mobility and adsorption processes are responsible for its behavior in the sediment–water interface. Therefore, the assessment of adsorption, mobility and water availability of arsenic in freshwater sediments, with agricultural, livestock and urban soil uses was performed. Arsenic concentrations in sediments ranged from 5.4 to 15.9 mg kg−1 (total) and 2.8 to 6.5 mg kg−1 (labile), and those of iron and manganese were 11,563–23,500 and 140.6–662.1 mg kg−1, respectively. The As levels in water were significantly lower than those of sediments. Results would suggest that As co-precipitation and adsorption on Fe oxides are probably the major route of immobilization, determining its low lability. Manganese did not present an outstanding contribution to the retention, and cation-exchange capacity, pH and organic matter of sediments did not show an influence on the mobility of As. © 2016, Springer-Verlag Berlin Heidelberg. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_18666280_v75_n23_p_Robles |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Adsorption Arsenic Mobility Surface sediment Adsorption Agriculture Arsenic Carrier mobility Manganese Soils Surface waters Adsorption process Cation exchange capacities Environmental risks Freshwater sediment Geochemical mobilities Surface sediments Water availability Water interface Sediments |
| spellingShingle |
Adsorption Arsenic Mobility Surface sediment Adsorption Agriculture Arsenic Carrier mobility Manganese Soils Surface waters Adsorption process Cation exchange capacities Environmental risks Freshwater sediment Geochemical mobilities Surface sediments Water availability Water interface Sediments Robles, A.D. Polizzi, P. Romero, M.B. Chiodi Boudet, L.N. Medici, S. Costas, A. Gerpe, M. Geochemical mobility of arsenic in the surficial waters from Argentina |
| topic_facet |
Adsorption Arsenic Mobility Surface sediment Adsorption Agriculture Arsenic Carrier mobility Manganese Soils Surface waters Adsorption process Cation exchange capacities Environmental risks Freshwater sediment Geochemical mobilities Surface sediments Water availability Water interface Sediments |
| description |
The presence of arsenic (As) in surface water constitutes an important environmental risk, where mobility and adsorption processes are responsible for its behavior in the sediment–water interface. Therefore, the assessment of adsorption, mobility and water availability of arsenic in freshwater sediments, with agricultural, livestock and urban soil uses was performed. Arsenic concentrations in sediments ranged from 5.4 to 15.9 mg kg−1 (total) and 2.8 to 6.5 mg kg−1 (labile), and those of iron and manganese were 11,563–23,500 and 140.6–662.1 mg kg−1, respectively. The As levels in water were significantly lower than those of sediments. Results would suggest that As co-precipitation and adsorption on Fe oxides are probably the major route of immobilization, determining its low lability. Manganese did not present an outstanding contribution to the retention, and cation-exchange capacity, pH and organic matter of sediments did not show an influence on the mobility of As. © 2016, Springer-Verlag Berlin Heidelberg. |
| format |
JOUR |
| author |
Robles, A.D. Polizzi, P. Romero, M.B. Chiodi Boudet, L.N. Medici, S. Costas, A. Gerpe, M. |
| author_facet |
Robles, A.D. Polizzi, P. Romero, M.B. Chiodi Boudet, L.N. Medici, S. Costas, A. Gerpe, M. |
| author_sort |
Robles, A.D. |
| title |
Geochemical mobility of arsenic in the surficial waters from Argentina |
| title_short |
Geochemical mobility of arsenic in the surficial waters from Argentina |
| title_full |
Geochemical mobility of arsenic in the surficial waters from Argentina |
| title_fullStr |
Geochemical mobility of arsenic in the surficial waters from Argentina |
| title_full_unstemmed |
Geochemical mobility of arsenic in the surficial waters from Argentina |
| title_sort |
geochemical mobility of arsenic in the surficial waters from argentina |
| url |
http://hdl.handle.net/20.500.12110/paper_18666280_v75_n23_p_Robles |
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