Bioavailability of arsenic in soil and mine wastes of the Tamar valley, SW England

Kavanagh, P.; Farago, M. E.; Thornton, I.; Braman, Robert S.

doi:10.1080/09542299.1997.11083291

Cited by 48 publications

(32 citation statements)

References 15 publications

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“…The values presented in this paper are in agreement with levels reported in previous studies (Kavanagh et al 1997. Whilst the HBF of arsenic was never greater than 0.34 (Table 1) of the total arsenic in the soil, bioaccessible arsenic levels at all sites were well above the SGV.…”

Section: Discussionsupporting

confidence: 92%

Earthworms and in vitro physiologically-based extraction tests: complementary tools for a holistic approach towards understanding risk at arsenic-contaminated sites

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Watts

Cave

et al. 2008

Environ Geochem Health

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Section: Discussionsupporting

confidence: 92%

Earthworms and in vitro physiologically-based extraction tests: complementary tools for a holistic approach towards understanding risk at arsenic-contaminated sites

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Watts

Cave

et al. 2008

Environ Geochem Health

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“…These values are much higher than those reported in the studies of Kavanagh et al (1997) and Ganne et al (2006) in mine wastes and soils, but comparable with the studies of Xu, Thornton (1985) and Cao, Ma (2004). Arsenic contents associated with Fe and Mn oxides (18.67-935 mg kg -1 ) showed positive correlation with those of water soluble As (r 2 = 0.929, p < 0.001), suggesting that the Fe and Mn oxides are the source of the more mobile and bioavailable As in stream sediments and impoundment materials.…”

Section: Impoundmentcontrasting

confidence: 68%

Arsenic and zinc in impoundment materials and related stream sediments from a polluted area in Eastern Slovakia: distribution, mobility, and water quality

Jankulár¹,

Hiller²,

Jurkovič³

et al. 2009

Journal of Hydrology and Hydromechanics

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The impoundment located near the village of Poša in eastern Slovakia is a significant source of arsenic. Waters penetrating the impoundment become enriched in As and other potentially toxic elements. As a consequence, the Kyjov brook and the Ondava River have been extensively polluted by arsenic. Although, zinc is of minor environmental significance regarding pollution in the area, it was also monitored to compare its behaviour with that of arsenic. The mobility and solid-state distribution of As and Zn in the impoundment materials and stream sediments have been investigated using a five-step sequential extraction procedure. Moreover, to investigate the bioavailability of As and Zn, two native plant species (Typha latifolia and Phragmites australis) growing at the site were collected and analyzed. The As concentrations in representative sediment and water samples ranged from 36.28 to 3208.35 mg kg -1 and from 4.05 to 612.8 μg l -1 , respectively, both being many times above the background levels. The Zn concentrations of environmental importance were found to be high only in the impoundment materials (up to 3390 mg kg -1 ). Although a part of As was present in a readily soluble form (6.62%), the majority of As was mainly associated with Fe/Mn oxides (37.30%) and residual phases (51%). Similarly, the most dominant fractions for zinc distribution were Fe/Mn oxides (38.5%), residual (34%) and exchangeable (18%). Combined results of the sequential extraction tests as well as chemical and mineralogical analysis indicated that As mobilisation potential from the sediments is likely controlled by Fe/Mn oxyhydroxide mineral phases. Plants growing in the impoundment had As concentrations 10 to 100 times higher than the same plants growing in a relatively nonpolluted area, indicating an enhanced bioavailability of arsenic in the area with high total As contents in the impoundment materials. Odkalisko, ktoré sa nachádza pri obci Poša (východné Slovensko), je významným zdrojom arzénu. Vody presakujúce cez materiál uložený v odkalisku sa tak obohacujú o As a ďalšie potenciálne toxické prvky. Dôsledkom je výrazné znečistenie toku Kyjov a rieky Ondava arzénom. Aj keď v tejto oblasti zinok nepredstavuje až tak veľký environmentálny problém, je zahrnutý v tejto štúdii s cieľom porovnať správanie sa týchto dvoch potenciálne toxických prvkov. Na štúdium pohyblivosti a distribúcie As a Zn v materiáloch odkaliska a v riečnych sedimentoch sa použila päťkroková sekvenčná extrakcia. Okrem toho sme skúmali bioprístupnosť As a Zn v dvoch typoch rastlín (Typha latifolia a Phragmites australis), ktoré prednostne rastú na odkalisku. Koncentrácie As v odobratých vzorkách sedimentov boli v intervale od 36,28 do 3208,35 mg kg -1 a v povrchových vodách od 4,05 do 612,8 μg l -1 . Tieto koncentrácie sú oveľa vyššie ako pozaďové hodnoty pre danú oblasť. Bolo zistené, že koncentrácie Zn významné z hľadiska znečistenia sú vysoké len v odkaliskových materiáloch (až 3390 mg kg -1 ). Aj keď určitý podiel As v sedimentoch bol prítomný v ľahko rozpustnej ...

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“…In some samples (4 out of 10) the water-soluble As fractions were higher (0.44, 0.56, 0.71 and 0.78 % of total As) than in others and those reported by Kavanagh et al (1997) and Casado et al (2007). In comparison with Xu and Thornton (1985) and Cao and Ma (2004), reporting maximum water-soluble As fractions of 2.78 and 3.02-13.6 % in garden soils in Cornwall and contaminated soils in the USA, respectively, the values obtained in the Dashkasan area were very low, probably due to the relatively low organic matter content.…”

Section: Arsenic In Soilmentioning

confidence: 47%

Arsenic in soil and vegetation of a contaminated area

Karimi

Ghaderian

2013

Int. J. Environ. Sci. Technol.

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Plant and soil samples were collected from one uncontaminated and four contaminated sites (in the Dashkasan mining area western Iran). Total and water-soluble arsenic in the soil ranged from 7 to 795 and from 0.007 to 2.32 mg/kg, respectively. The highest arsenic concentration in soil was found at the ore dressing area (up to 1,180 mg/kg) and lowest at an uncontaminated area (up to 11 mg/kg). A total of 49 plant species belonging to 15 families were collected from four sampling sites. A significant positive correlation was detected between the concentrations of arsenic in plant dry matter and those in soils. The highest arsenic concentrations were found in Hyoscyamus kurdicus Bornm. (up to 205 mg/kg) and Helichrysum oligocephalum DC. (up to 162 mg/kg). These two accumulator species could have potential for soil clean-up by phytoextraction. The data have been compared with those for the Zarshuran mining area (north-western Iran) obtained in a former study.

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Bioavailability of arsenic in soil and mine wastes of the Tamar valley, SW England

Cited by 48 publications

References 15 publications

Earthworms and in vitro physiologically-based extraction tests: complementary tools for a holistic approach towards understanding risk at arsenic-contaminated sites

Earthworms and in vitro physiologically-based extraction tests: complementary tools for a holistic approach towards understanding risk at arsenic-contaminated sites

Arsenic and zinc in impoundment materials and related stream sediments from a polluted area in Eastern Slovakia: distribution, mobility, and water quality

Arsenic in soil and vegetation of a contaminated area

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