Tungsten speciation and toxicity: Acute toxicity of mono- and poly-tungstates to fish

Strigul, Nikolay; Koutsospyros, Agamemnon; Christodoulatos, Christos

doi:10.1016/j.ecoenv.2009.08.016

Cited by 74 publications

(32 citation statements)

References 44 publications

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“…Recent studies have shown that the toxicity of tungstate is related to its speciation. Strigul et al studied toxicities of tungstate species in fish, and reported that polymeric tungstates were more toxic than monotungstate [10]. Investigation of tungstate behavior in aqueous systems, including its toxicity, has become increasingly important as industrial applications and releases to the environment have escalated.…”

Section: Introductionmentioning

confidence: 97%

Tungstate sorption mechanisms on boehmite: Systematic uptake studies and X-ray absorption spectroscopy analysis

Hur

Reeder

2016

Journal of Colloid and Interface Science

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Mechanisms of tungstate sorption on the mineral boehmite (γ-AlOOH) were studied using batch uptake experiments and X-ray absorption spectroscopy. Batch uptake experiments over the pH range 4-8 and [W]=50-2000 μM show typical oxyanion behavior, and isotherm experiments reveal continued uptake with increasing tungstate concentration without any clear uptake maximum. Desorption experiments showed that sorption is irreversible at pH 4 and partly reversible at pH 8. Tungsten L1- and L3-edge XANES spectroscopy indicates that all sorbed tungstates are octahedrally coordinated, even though the dominant solution species at pH 8 is a tetrahedral monotungstate. Tungsten L3-edge EXAFS analysis shows that sorbed tungstate occurs as polymeric form(s), as indicated by the presence of corner- and edge-sharing of distorted tungstate octahedra. The occurrence of polymeric tungstate on the surface at pH 8 indicates that sorption is accompanied by polymerization and a coordination change from tetrahedral (in solution) to distorted octahedral (on the surface). The strong tendency for tungstate polymerization on boehmite can explain the continued uptake without an apparent maximum in sorption, and the limited desorption behavior. Our results provide the basis for a predictive model of tungstate uptake by boehmite, which can be important for understanding tungstate mobility, toxicity, and bioavailability.

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Section: Introductionmentioning

confidence: 97%

Tungstate sorption mechanisms on boehmite: Systematic uptake studies and X-ray absorption spectroscopy analysis

Hur

Reeder

2016

Journal of Colloid and Interface Science

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“…The major sources of Cd exposure are food (up to several hundred g/ day) for the non-smoking general population, and tobacco for smokers. Tungsten (W), is a transition metal used extensively for Wlaments for electric lamps, and television tubes with no recognized physiologic role and very limited available information of its toxicological eVects (Goldoni et al 2004;Koutsospyros et al 2006;Strigul et al 2010), although, in recent years W compounds have been proposed as anti-diabetic and anti-obesity agents (BarceloBatllori et al 2005;Canals et al 2009). Tellurium (Te) is used in semiconductor device fabrication (Schiar et al 2009), and can inhibit the activity of selenium dependent glutathione peroxidase, which can lead to an exacerbation of intracellular oxidative stress (Garberg et al 1999).…”

Section: Introductionmentioning

confidence: 99%

Comparison of urine toxic metals concentrations in athletes and in sedentary subjects living in the same area of Extremadura (Spain)

et al. 2011

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Cadmium (Cd), tungsten (W), tellurium (Te), beryllium (Be), and lead (Pb), are non-essential metals pervasive in the human environment. Studies on athletes during training periods compared to non-training control subjects, indicate increased loss of minerals through sweat and urine. The aim of this study was to compare the level of these trace elements, determined by inductively coupled plasma mass spectrometry (ICP-MS) in urine samples, between athletes and age-matched sedentary subjects living in the same geographical area, although anthropometric and cardiovascular measurements showed that athletes have significantly (P ≤ 0.001) lower BMI, body fat and heart rate, whereas the muscle and bone percentage was significantly (P ≤ 0.001) higher than in sedentary subjects. The validity of the methodology was checked by the biological certified reference material. Trace element analysis concentrations, expressed in μg/mg creatinine, of five toxic elements in urine from athletes (n = 21) versus sedentary subjects, (n = 26) were as follows: Cd (0.123 ± 0.075 vs. 0.069 ± 0.041, P ≤ 0.05); W (0.082 ± 0.053 vs. < limit of detection); Te (0.244 ± 0.193 vs. 0.066 ± 0.045, P ≤ 0.001), Be (0.536 ± 0.244 vs. 0.066 ± 0.035, P ≤ 0.001); Pb (0.938 ± 0.664 vs. 2.162 ± 1.444 P ≤ 0.001). With the exception of Pb, urine toxic metal concentrations from athletes were higher than from sedentary subjects. This fact suggests that physical activity counteracts, at least in part, the cumulative effect of toxic environment by increasing the urine excretion of toxic metals in trained people.

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“…However, even around the world, field studies on the effects of tungsten on aquatic organisms are extremely inadequate, although a few studies have concluded that tungsten may act as a toxin to aquatic biota ( [39] and references therein). Strigul et al [10] observed the acute toxicity of tungsten to fish in terms of not only its concentration level but also its chemical speciation. Although the toxic mechanism is not known well, the authors further hypothesized to be related to the damage of gill epithelium.…”

Section: Significant Inputs Of Tungsten From the Studied Small Streammentioning

confidence: 98%

“…However, our current knowledge on these metals' respective biogeochemical characteristics and fates in receiving water bodies, which is in turn intensively related to their resultant effect on living biota and the routes linking the food chain [9], is substantially lacking. Tungsten is suspected to be potentially related to an acute lymphocytic leukemia cluster in three communities in the US (Fallon, Nevada; Sierrk Vista, AZ; Elk Grove, CA) and is also harmful to fish [10]. As reviewed by Koutsospyros et al [7], the toxicological profile of tungsten, including its possible effects on living organisms and exposure pathways, remains rather sketchy, narrow, and fragmentary.…”

Section: Introductionmentioning

confidence: 98%

Tungsten and other heavy metal contamination in aquatic environments receiving wastewater from semiconductor manufacturing

Hsu

Hsieh

Chen

et al. 2011

Journal of Hazardous Materials

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Tungsten speciation and toxicity: Acute toxicity of mono- and poly-tungstates to fish

Cited by 74 publications

References 44 publications

Tungstate sorption mechanisms on boehmite: Systematic uptake studies and X-ray absorption spectroscopy analysis

Tungstate sorption mechanisms on boehmite: Systematic uptake studies and X-ray absorption spectroscopy analysis

Comparison of urine toxic metals concentrations in athletes and in sedentary subjects living in the same area of Extremadura (Spain)

Tungsten and other heavy metal contamination in aquatic environments receiving wastewater from semiconductor manufacturing

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