Distribution, speciation and availability of antimony (Sb) in soils and terrestrial plants from an active Sb mining area

Okkenhaug, Gudny; Zhu, Yan; Luo, Lei; Lei, Ming; Li, Xi; Mulder, Jan

doi:10.1016/j.envpol.2011.06.028

Cited by 220 publications

(113 citation statements)

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“…Several plants in this study exhibited a high ability to accumulate Sb in their tissues, particularly in their roots, such as D. erythrosora at site S3, F. dibotrys (D. Don) at site S7, Rumex patientia L. at site S2, Oplismenus undulatifolius(A) Bea at site S4 and P. vittata at site S8. Boehmeria nivea has reportedly accumulated levels of Sb as high as 5579 mg/kg in its roots at XKS (Okkenhaug et al, 2011). In this study, however, such levels were not observed, which may reflect the great variation in plant accumulations of Sb from site to site.…”

Section: Accumulation Of As and Sb By Plants At Xkscontrasting

confidence: 54%

“…For example, biomethylation of Sb by the filamentous fungus Scopulariopsis brevicaulis was recently established (Jenkins et al, 1998). Nevertheless, the information on organic species of Sb in plants had rarely been reported, with most current studies on Sb speciation in plants only focusing on Sb V and Sb III (Okkenhaug et al, 2011). Müller et al used a chromatographic method to study the Sb speciation in Pteris vittata L. spiked with 16 mg/kg Sb V , they found that Sb V , Sb III , trimethylated Sb V and an unidentified Sb compound in the plant (Muller et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Accumulation Of As and Sb By Plants At Xkscontrasting

confidence: 54%

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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“…Sorption of Sb V to Fe (hydr)oxides is known to decrease with increasing pH above pH 7, but this can explain only a very small part of the observed increase in Sb V that occurred parallel with the release of Mn in the nonsterilised columns. [19] Other abiotic processes that have also been suggested in the literature to mobilise Sb, such as ratelimited desorption of Sb V from Fe (hydr)oxides, [22] chemical dissolution of Sb-bearing phases [7,39] or competitive desorption, [40] do not provide plausible explanations for the difference in Sb release at the initial stages of the experiment between columns with and without sterilisation treatment, although they may have contributed to the release of Sb that occurred independent of these treatments. Although no consumption of lactate by soil microbial communities was found before flow interruption in the sterilised column (Supplementary material, Fig.…”

Section: Discussionmentioning

confidence: 99%

Antimony leaching from contaminated soil under manganese- and iron-reducing conditions: column experiments

et al. 2014

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Environmental context. Contamination of shooting range soils by antimony (Sb) released from corroding ammunition has become an issue of public environmental concern. Because many of these sites are subject to waterlogging and consequently limited aeration, we performed column experiments with contaminated shooting range soil to investigate Sb mobility under such conditions. The results are important for our understanding of the risks arising from Sb-contaminated soils, and also for the derivation of appropriate management strategies for such sites.Abstract. Despite the environmental risks arising from antimony-contaminated sites, critical factors controlling the mobility of Sb in soils have still not been fully identified to date. We performed column experiments to investigate how reducing conditions affect Sb leaching from a calcareous shooting range soil, with a special focus on the relationship between Sb release and mineral dissolution processes. After eluting the columns for 5 days with 15 mM lactate solution at a flow rate of 33 mm day À1 , the flow was interrupted for 37 days and then resumed for another 5 days. With the transition to moderately reducing conditions (,300 mV) after 1 day of flow, effluent Sb V and manganese (Mn) concentrations showed a concomitant increase, providing evidence that Sb V associated to these phases was released by the reductive dissolution of Mn minerals. The release of Sb V was counteracted by the reduction to Sb III , which was first scavenged by iron (Fe) (hydr) oxides and then slowly liberated again when the redox potential further decreased to Fe-reducing conditions. Laser ablation-inductively coupled plasma-mass spectrometry revealed the presence of an initial pool of Sb associated with Mn-containing, Fe-free phases, underpinning the important role of the latter in addition to Fe (hydr)oxides as Sb sorbents.

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“…Many of these factors are interlinked and, for example, drainage and pH are particularly important with respect to redox cycling of Fe. Iron oxides are major natural sorbents for Sb (Johnson et al, 2005;Mitsunobu et al, 2006Mitsunobu et al, , 2010Wilson et al, 2010;Okkenhaug et al, 2011), and Filella et al (2002b) noted the importance of Fe (oxy)hydroxides in limiting Sb mobility, particularly in acidic soils typical of those found at the Glendinning site. As in many upland areas of the UK, the soils are also organic-rich and previous work has shown that Sb, As and Pb bind to organic matter to varying extents (e.g.…”

Section: Introductionmentioning

confidence: 99%

Mobility of antimony, arsenic and lead at a former antimony mine, Glendinning, Scotland

Macgregor

MacKinnon

Farmer

et al. 2015

Science of The Total Environment

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HIGHLIGHTS• Solid phase speciation of antimony, arsenic, lead and iron differed between sites.• Elevated soil porewater antimony concentrations were linked to DOM and spoil leaching.• Leaching from spoil resulted in elevated antimony concentrations in stream water. AbstractElevated concentrations of antimony (Sb), arsenic (As) and lead (Pb) in upland organic-rich soils have resulted from past Sb mining activities at Glendinning, southern Scotland. Transfer of these elements into soil porewaters was linked to the production and leaching of dissolved organic matter and to leaching of spoil material. Sb was predominantly present in truly dissolved (<3 kDa) forms whilst As and Pb were more commonly associated with large Fe-rich/organic colloids. The distinctive porewater behaviour of Sb accounts for its loss from deeper sections of certain cores and its transport over greater distances down steeper sections of the catchment. Although Sb and As concentrations decreased with increasing distance down a steep gully from the main spoil heap, elevated concentrations (~6-8 and 13-20 μg L −1 , respectively) were detected in receiving stream waters. Thus, only partial attenuation occurs in steeply sloping sections of mining-impacted upland organic-rich soils and so spoil-derived contamination of surface waters may continue over time periods of decades to centuries.Capsule abstract: Production and leaching of dissolved organic matter led to the concomitant transfer of truly dissolved Sb to soil porewaters. Leaching of spoil-derived Sb impacted on the quality of receiving stream waters.

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Distribution, speciation and availability of antimony (Sb) in soils and terrestrial plants from an active Sb mining area

Abstract: a b s t r a c tHere, we present one of the first studies investigating the mobility, solubility and the speciationdependent in-situ bioaccumulation of antimony (Sb)

Cited by 220 publications

References 47 publications

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

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

Antimony leaching from contaminated soil under manganese- and iron-reducing conditions: column experiments

Mobility of antimony, arsenic and lead at a former antimony mine, Glendinning, Scotland

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