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Metal Enrichment in Zlatna, a Romanian Copper Smelting Town

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Abstract

A preliminary survey of metal concentrations in soil and vegetable samples was undertaken in the town of Zlatna, in western Romania that is dominated by a large copper smelter. One data set (town survey) consisted of soil samples taken from sites both in the centre of the town (near smelter and school grounds) and the outskirts and included those from roadside verges and wooded areas. The second data set consisted of soil samples taken from vegetable garden plots together with an associated sample of spring onion (Allium fistulosum). The aim of this study was to measure levels of the elements Cu, Zn, Pb, Cd and As in soil samples from Zlatna in general, and to assess their uptake into home grown vegetables and thus into the food chain. Concentrations of the elements of interest in soils and vegetables peaked southwest of the smelter and also in soils near the school in the town centre. Concentrations of elements in soils from the town, including those near the school, had the following ranges: Cu, 41–12,000, geometric mean 863 μg/g; Zn, 89–15,600, geometric mean 920 μg/g; Pb, 32–7860, geometric mean 740 μg/g; Cd, BDL–329.5, geometric mean 3.35 μg/g; As, 15–1440 geometric mean 223 μg/g; Thus, the residents of Zlatna are potentially exposed to levels of these elements that are higher than the recommended guideline values. Mean concentrations of the toxic elements in spring onions were: Cu, 10.2; Zn, 95; Pb, 11; Cd, 0.8; As 2.6 μg/g dry weight.

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Authors and Affiliations

  1. Department of Environmental Science and Technology, Imperial College, London, SW7 2 PB, UK

    Joanna M. Pope, Margaret E. Farago & Iain Thornton

  2. University Babeş-Bolyai, Cluj, Romania

    Emil Cordos

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  1. Joanna M. Pope
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  2. Margaret E. Farago
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  3. Iain Thornton
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  4. Emil Cordos
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Correspondence to Margaret E. Farago.

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Pope, J.M., Farago, M.E., Thornton, I. et al. Metal Enrichment in Zlatna, a Romanian Copper Smelting Town. Water Air Soil Pollut 162, 1–18 (2005). https://doi.org/10.1007/s11270-005-5989-5

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  • DOI: https://doi.org/10.1007/s11270-005-5989-5

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