Aqua regia extractable selenium concentrations of some Scottish topsoils measured by ICP‐MS and the relationship with mineral and organic soil components

Shand, C. A.; Balsam, Matthias; Hillier, S. J.; Hudson, G.; Newman, Gareth; Arthur, John R.; Nicol, Fergus

doi:10.1002/jsfa.3905

Cited by 25 publications

(10 citation statements)

References 36 publications

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“…et al 2014), but similar to measured values in Scottish topsoil (Shand et al, 2010), Finnish sediment (Koljonen et al, 1974), and soils from China (Yu et al, 2014).…”

Section: Accepted Manuscriptsupporting

confidence: 78%

Study of potential harmful elements (arsenic, mercury and selenium) in surface sediments from Serbian rivers and artificial lakes

Sakan

Anđelković

et al. 2017

Journal of Geochemical Exploration

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This investigation examines surface sediment samples from rivers and artificial lakes (Serbia) to quantify levels of potentially harmful elements (As, Hg, and Se) and several ancillary elements (Al, Fe, Mn, Ca, Mg, C, H, N, and S). These data provide the first global analysis of Hg, As and Se levels in a well-studied system. Combination of different methods was applied for estimation of the environmental status of sediments and to determine the potential risk of

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“…et al 2014), but similar to measured values in Scottish topsoil (Shand et al, 2010), Finnish sediment (Koljonen et al, 1974), and soils from China (Yu et al, 2014).…”

Section: Accepted Manuscriptsupporting

confidence: 78%

Study of potential harmful elements (arsenic, mercury and selenium) in surface sediments from Serbian rivers and artificial lakes

Sakan

Anđelković

et al. 2017

Journal of Geochemical Exploration

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“…(2010) (114 samples from 44 farms) and Shand et al . (2010) (47 samples); England and Wales topsoil=Rawlins et al . (2012); world soils=Reimann & Caritat (1998).…”

Section: Resultsmentioning

confidence: 99%

“…2010; Shand et al . 2010; Fordyce 2013). Concentrations in Clyde Basin rural soil are, overall (median values), higher than those reported for soil in Scotland as a whole and England and Wales, reflecting the dominance of organic-rich soil in the area.…”

Section: Resultsmentioning

confidence: 99%

Soil metal/metalloid concentrations in the Clyde Basin, Scotland, UK: implications for land quality

Fordyce

Everett

Bearcock

et al. 2017

Earth and Environmental Science Transactions of the Royal Socie

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An assessment of topsoil (5–20cm) metal/metalloid (hereafter referred to as metal) concentrations across Glasgow and the Clyde Basin reveals that copper, molybdenum, nickel, lead, antimony and zinc show the greatest enrichment in urban versus rural topsoil (elevated 1.7–2.1 times; based on median values). This is a typical indicator suite of urban pollution also found in other cities. Similarly, arsenic, cadmium and lead are elevated 3.2–4.3 times the rural background concentrations in topsoil from the former Leadhills mining area. Moorlands show typical organic-soil geochemical signatures, with significantly lower (P<0.05) concentrations of geogenic elements such as chromium, copper, nickel, molybdenum and zinc, but higher levels of cadmium, lead and selenium than most other land uses due to atmospheric deposition/trapping of these substances in peat. In farmland, 14% of nickel and 7% of zinc in topsoil samples exceed agricultural maximum admissible concentrations, and may be sensitive to sewage-sludge application. Conversely, 5% of copper, 17% of selenium and 96% of pH in farmland topsoil samples are below recommended agricultural production thresholds. Significant proportions of topsoil samples exceed the most precautionary (residential/allotment) human-exposure soil guidelines for chromium (18% urban; 10% rural), lead (76% urban; 45% rural) and vanadium (87% urban; 56% rural). For chromium, this reflects volcanic bedrock and the history of chromite ore processing in the region. However, very few soil types are likely to exceed new chromiumVI-based guidelines. The number of topsoil samples exceeding the guidelines for lead and vanadium highlight the need for further investigations and evidence to improve human soil-exposure risk assessments to better inform land contamination policy and regeneration.

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“…Adsorbed Se (soil pool 2) is uniform in its proportion relative to ΣSe SEP across the soil depths (24.1 ± 8.2%, 1σ, n = 11). The concentrations of Se in soil pool 4 are more variable and represent the most abundant fraction at shallow depths at sites B and C. Se in soil pool 4 is likely a mix of different Se species [Se(IV), Se(−II), Se(0)] associated with recalcitrant organic matter, 34 occluded in phyllosilicates 35 or ferruginous concretions, which were nonextractable by KClO 3 . 33 Se Mass Balance and Potential Limitations.…”

Section: ■ Analytical Methodsmentioning

confidence: 99%

Fate of Selenium in Soils at a Seleniferous Site Recorded by High Precision Se Isotope Measurements

Schilling

Dhillon

Mason

2015

Environ. Sci. Technol.

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Selenium poisoning is a significant health problem in parts of Punjab, India, which is an area of intense agricultural productivity. To determine the complex soil dynamics that control distribution of Se in this area, we measured concentrations and δ(82/76)Se of bulk Se and individual Se pools in four soil profiles. This was compared against δ(82/76)Se of crops and groundwater used for irrigation. The isotopic composition of bulk Se and component Se pools reveal spatial heterogeneity. The bulk δ(82/76)Se show progressively lower values with increasing soil depth indicating the preferential migration of isotopically lighter Se downward through the soil profile. The δ(82/76)Se of water-soluble Se is isotopically heavier than δ(82/76)Se of adsorbed Se, suggesting Se isotope fractionation by reduction prior to scavenging by reactive minerals in the soil. The organically bound Se is isotopically lighter than water-soluble Se and correlates with the C/N ratio at different soil depths. Thus, Se immobilization by redox cycling controls the biogeochemical Se cycle in the soil. Se isotope ratios help to trace biochemical processes of Se in agricultural seleniferous soils and provide an important assessment for better soil management mitigating Se concentrations of ecotoxicological levels.

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Aqua regia extractable selenium concentrations of some Scottish topsoils measured by ICP‐MS and the relationship with mineral and organic soil components

Cited by 25 publications

References 36 publications

Study of potential harmful elements (arsenic, mercury and selenium) in surface sediments from Serbian rivers and artificial lakes

Study of potential harmful elements (arsenic, mercury and selenium) in surface sediments from Serbian rivers and artificial lakes

Soil metal/metalloid concentrations in the Clyde Basin, Scotland, UK: implications for land quality

Fate of Selenium in Soils at a Seleniferous Site Recorded by High Precision Se Isotope Measurements

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