Lead Pollution in Agricultural Soils

Colbourn, P.; Thornton, I.

doi:10.1111/j.1365-2389.1978.tb00800.x

Cited by 107 publications

(33 citation statements)

References 20 publications

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“…Thus total lead averaged 78000/^g g"^ and 8000/tg g~^ respectively (Table 3). The lead contents were in both areas, far above the level of 350/^gg~^ taken by Colbourn and Thornton (1978) in the Derbyshire Pennines, as a threshold value above which lead levels are anomalously high. The soils of both these areas would therefore normally be expected to be toxic to all but tolerant races.…”

Section: Resultsmentioning

confidence: 99%

Floristic Diversity in Relation to Soil Characteristics in a Lead Mining Complex in the Pennines, England

Clark

1981

New Phytologist

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SUMMARYAdjacent species-rich and species-poor areas of a limestone outcrop were investigated in a heavy metal mining complex on Grassington Moor, Yorkshire, England, to determine reasons for the differences in their floras. Levels of soil lead, zinc, nitrogen, phosphorus and potassium were determined and the activities of the enzymes urease, acid phosphatase and dehydrogenase in the soil were measured. Soil respiration rates were also determined. The percentages of the variation in species-density accounted for by each factor were determined using a step-wise multiple regression technique. Binding of lead in organic forms resulting in low levels of available lead, together with higher levels of the major plant nutrients, were probably the main factors enabling a species-rich community to occur on one part of the outcrop. Possible ways in which the differences in habitat became established are discussed.

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Section: Resultsmentioning

confidence: 99%

Floristic Diversity in Relation to Soil Characteristics in a Lead Mining Complex in the Pennines, England

Clark

1981

New Phytologist

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“…An estimated area of 250 km 2 of land in Derbyshire is affected by Pb contamination (Colbourn and Thornton, 1978). Lead-rich sediments still pulse into the Trent tributaries in their upper catchments (Bradley and Cox, 1990) and can be stored in floodplain soils dowstream.…”

Section: Study Areamentioning

confidence: 99%

Sources, lability and solubility of Pb in alluvial soils of the River Trent catchment, U.K.

Izquierdo

Tye

Chenery

2012

Science of The Total Environment

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Alluvial soils are reservoirs of metal contaminants such as Pb that originate from many different sources and are integrated temporally and spatially through erosional and depositional processes. In this study the source, lability and solubility of Pb was examined in a range of alluvial soils from the middle and lower River Trent and its tributary the River Dove using Pb isotope apportionment and isotopic dilution. All samples were collected within 10 m of the river bank to represent the soil that is most likely to be remobilised during bank erosion. Paired samples were taken from the topsoil Pb ratios showed that the isotopic ratios of Pb in the total, labile and solution pools fitted along a mixing line between Broken Hill Type ('BHT') Pb, used as an additive in UK petrol, and the local coal/Sourthern Pennine ore Pb. Various anomalies were found in the Pb isotopes of the bankside alluvial soils which were explained by point source pollution. Statistically significant differences were found between (i) the isotopic composition of Pb in the total soil pool and the labile/solution pools and (ii) the isotopic composition of Pb in the labile and solution pools, suggesting an enrichment of recent non-Pennine sources of Pb entering the soils in the labile and solution pools.

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“…The continuous application of large amounts of fertilizers and other soil amendments to agricultural lands has raised concern regarding the possible accumulation of elevated levels of their trace element constituents and potential harm to the environment (Colbourn and Thornton 1978, Ma and Rao 1995, Raven and Leoppert 1997. Furthermore, increasing amounts of urban and industrial wastes (Haines and Pocock 1980, Parry et al 1981, Culbard et al 1983, Gibson and Farmer 1983, which may contain significant quantities of heavy metals, are being disposed on the agricultural lands (Raven and Leoppert 1997).…”

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confidence: 99%

An evaluation of the efficiency of cultural plants to remove heavy metals from growing mediu

Hajiboland¹

2005

PLANT SOIL ENVIRON

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Contamination of heavy metals in the environment is one of major concern because of their toxicity and threat to human life and the environment. Phytoextraction, using plants to extract heavy metals from contaminated soils is an emerging technology. In this work, in order to find a suitable plant species for use in cleaning up the soil in an industrial region, some crop species, which are cultivated by farmers on these soils, were studied. The effects of various concentrations of four heavy metals including Cd, Cr, Co and Ni were studied in two cultivars of wheat (Triticum aestivum L.), bean (Phaseolus vulgaris L.) and alfalfa (Medicago sativa L.) in hydroponic culture media under controlled environmental conditions. The results showed that, despite a higher tissue concentration, and because of a low biomass particularly under toxicity conditions, alfalfa was not an effective species in removing heavy metals from the medium. In contrast, regarding the biomass, metal content, as well as % recovery values, it became apparent that the bean plant was the most effective crop in removing heavy metals from medium.

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Lead Pollution in Agricultural Soils

Cited by 107 publications

References 20 publications

Floristic Diversity in Relation to Soil Characteristics in a Lead Mining Complex in the Pennines, England

Floristic Diversity in Relation to Soil Characteristics in a Lead Mining Complex in the Pennines, England

Sources, lability and solubility of Pb in alluvial soils of the River Trent catchment, U.K.

An evaluation of the efficiency of cultural plants to remove heavy metals from growing mediu

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