2005
DOI: 10.1039/b503293h
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Lead in grass in the Scottish uplands: deposition or uptake?

Abstract: If it is assumed that the Pb collected in grass samples is derived mainly from atmospheric deposition then grass samples can be used as a convenient and easily analysed monitor for Pb deposition, in particular to establish the isotopic composition of current deposition in remote locations. As some studies have demonstrated a strong correlation between soil and grass Pb concentrations, it was considered important to establish the proportion of soil Pb in the grasses used to monitor atmospheric deposition at upl… Show more

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Cited by 19 publications
(11 citation statements)
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“…Thus, while Pb concentrations decreased at all three locations, the isotope data reveal a pronounced decrease in the relative contribution of petrol Pb at the minor road but not at the motorway. Bacon (2002) that incinerator ash with a 206 Pb/ 207 Pb ratio in the approximate range 1.14 to 1.15 could, in the post petrol Pb era, represent a significant component of atmospheric deposition The absence of any relationship between the soil Pb concentrations and 206 Pb/ 207 Pb ratios and those of the vegetation is also consistent with the conclusion of Bacon et al (2005) that Pb in grass is derived from deposition rather than uptake from the soil.…”
Section: Road Dustssupporting
confidence: 59%
“…Thus, while Pb concentrations decreased at all three locations, the isotope data reveal a pronounced decrease in the relative contribution of petrol Pb at the minor road but not at the motorway. Bacon (2002) that incinerator ash with a 206 Pb/ 207 Pb ratio in the approximate range 1.14 to 1.15 could, in the post petrol Pb era, represent a significant component of atmospheric deposition The absence of any relationship between the soil Pb concentrations and 206 Pb/ 207 Pb ratios and those of the vegetation is also consistent with the conclusion of Bacon et al (2005) that Pb in grass is derived from deposition rather than uptake from the soil.…”
Section: Road Dustssupporting
confidence: 59%
“…This result is in agreement with earlier reports that soil oxides are important scavengers of heavy metals in soils (e.g., [20]). However, previous studies, including soils with relatively high organic matter contents, have shown that in such soils, anthropogenic Pb may occur predominantly in the oxidisable fraction [21,22]. The above results demonstrate considerable soil pollution with Pb in the vicinity of the smelter.…”
Section: Examination Of Anthropogenic Pb In the Soil Using The Flow Smentioning
confidence: 48%
“…Según Bacon et al (2005) más del 80 % del Pb proviene de deposición atmosfé-rica. El Pb a pesar de ser insoluble en agua, presenta solubilidad en soluciones amoniacales y la influencia de la napa freática superficial (3 m de profundidad) pudiera ser relevante para entender esta diferencia (Fujiwara et al, 2006).…”
Section: Resultados Y Discusionunclassified