Antimony and arsenic mobility in a creek draining an antimony mine abandoned 85 years ago (upper Orb basin, France)

Casiot, Corinne; Ujević, Magdalena; Muñoz, Mauricio Ormachea; Seidel, J.L.; Elbaz-Poulichet, Françoise

doi:10.1016/j.apgeochem.2006.11.007

Cited by 139 publications

(60 citation statements)

References 37 publications

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“…Apart from the reductive dissolution of adsorbing soil phases, i.e., oxides (Bauer and Blodau 2006;Blodau et al 2008;Wenzel 2013;Shaheen et al 2014), that takes place under anoxic conditions, also As (V) gets reduced to As (III), a species that has much lower affinity to soil sorption sites. Moreover, the sorption of As (III) is believed to decrease with increasing pH in the pH range 8-10 (Casiot et al 2007). …”

Section: Discussionmentioning

confidence: 99%

Transformation of beech forest litter as a factor that triggers arsenic solubility in soils developed on historical mine dumps

et al. 2018

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Purpose Soils that develop on the dumps in historical arsenic mining sites contain high concentrations of As thus constituting a serious environmental risk. This study was aimed to examine the changes in arsenic solubility in mine soils as induced by organic matter introduced with forest litter. Materials and methods Four large samples of initially developed soils were collected from the dumps remaining in former mining sites and were incubated for 90 days at various moistures: 80% of maximum water holding capacity and 100% (flooded conditions), with and without addition of beech forest litter (BL), 50 g/kg. Soils contained up to 5.0% As. Soil pore water was collected periodically with MacroRhizon suction samplers and examined on As, Mn, and Fe concentrations, pH, Eh, and dissolved organic carbon (DOC). The properties of dissolved organic matter were characterized by UV-VIS spectroscopic parameters A4/A6 and SUVA 254 . Results and discussion Application of BL resulted in an intensive release of As from soils, particularly at 100% moisture. As concentrations in soil pore water increased strongly during the first 2 or 4 weeks of incubation and then started to decrease in all cases, except for one flooded soil. As was released particularly intensively from carbonate-containing soils. The mechanisms of As mobilization, including reductive dissolution of Mn and Fe oxides and the competition with DOC for sorption sites on the oxides, were discussed as related to soil properties. Pore water concentrations of DOC were increasing at the beginning of incubation and started to decrease after two or four weeks. Spectroscopic parameters of dissolved organic matter in ZS soils indicated increasing aromaticity and progress of humification. Conclusions Forest litter introduced to mine dump soils causes a mobilization of As into soil pore water. This effect, particularly strong in carbonate-rich soils, is apparently related to high concentrations of DOC and usually declines with time, which may be explained by the progress in humification. The relationships between DOC properties and As speciation in soil pore water should be dissected for better interpretation of experimental results.

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Section: Discussionmentioning

confidence: 99%

Transformation of beech forest litter as a factor that triggers arsenic solubility in soils developed on historical mine dumps

et al. 2018

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“…The chemical similarities between the two metalloids have prompted concerns regarding the enrichment of both metalloids in various environments (Filella et al, 2002;Krachler and Emons, 2001). Sb is often thought of as behaving similarly to As, although this generalization is not always with justification (Casiot et al, 2007;Wilson et al, 2010). Dimethylarsinic acid is very soluble in water, in contrast with dialkylstibinic acid, which is polymeric and relatively insoluble (Parris and Brinckman, 1976).…”

Section: Introductionmentioning

confidence: 99%

Speciation of antimony and arsenic in the soils and plants in an old antimony mine

Wei

Chu

et al. 2015

Environmental and Experimental Botany

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a b s t r a c tThe speciation changes of antimony (Sb) in soil-plant system are largely unknown as compared with those of arsenic (As). In this study, indigenous plants and associated soils were sampled at the Xikuangshan Sb mine (XKS), China. The Sb in the soils (441-1472 mg/kg) were far greater than As (32-354 mg/kg), and the Sb and As availabilities in the soils, were 5.5% and 3.9% in average, respectively. HPLC-ICP-MS revealed the presence of four species of Sb in the soils and plants, including Sb III , Sb V , TMSb and UnkSb (unknown). The use of XANES revealed that the UnkSb consisted of inorganic Sb in the form of Sb V . Inorganic Sb were prevalent in the soil and plant samples at the eight sites, whereas TMSb was observed in only a few of the rhizosphere soils, and, in plants at a few of the sites, primarily in the leaves and to a lesser extent in the stems. Arsenic was detected in the soils primarily as inorganic forms, while, DMA was detected in high proportions in all of the plant tissues at all of the sites. The methylation of Sb was far less than that of As in the indigenous plants at XKS. The results suggest that As and Sb differ in transformation characteristics in the soil-plant system in XKS.

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“…Because Sb and As are metalloids belonging to Group 15 of the periodic table of elements, they share some toxicological and chemical properties with As (Casiot et al 2007;Susan et al 2010), antimony accumulation by rice may be also influenced by the amounts of Fe plaque formed on the root surface.…”

Section: Introductionmentioning

confidence: 99%

Influence of iron plaque and cultivars on antimony uptake by and translocation in rice (Oryza sativa L.) seedlings exposed to Sb(III) or Sb(V)

2011

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Antimony and arsenic mobility in a creek draining an antimony mine abandoned 85 years ago (upper Orb basin, France)

Cited by 139 publications

References 37 publications

Transformation of beech forest litter as a factor that triggers arsenic solubility in soils developed on historical mine dumps

Transformation of beech forest litter as a factor that triggers arsenic solubility in soils developed on historical mine dumps

Speciation of antimony and arsenic in the soils and plants in an old antimony mine

Influence of iron plaque and cultivars on antimony uptake by and translocation in rice (Oryza sativa L.) seedlings exposed to Sb(III) or Sb(V)

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