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Real and simulated bioavailability of lead in contaminated and uncontaminated soils
BACKGROUND: Lead (Pb) is a toxic element that occurs in elevated concentrations in soils, mostly as a result of anthropogenic activities. This study assess the Pb bioavailability in soils from two areas with different contamination level using Diffusive Gradients in Thin-Films (DGT) technique, singl...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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BioMed Central
2014
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4114113/ https://www.ncbi.nlm.nih.gov/pubmed/25097761 http://dx.doi.org/10.1186/2052-336X-12-108 |
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author | Senila, Marin |
author_facet | Senila, Marin |
author_sort | Senila, Marin |
collection | PubMed |
description | BACKGROUND: Lead (Pb) is a toxic element that occurs in elevated concentrations in soils, mostly as a result of anthropogenic activities. This study assess the Pb bioavailability in soils from two areas with different contamination level using Diffusive Gradients in Thin-Films (DGT) technique, single extractions and metal contents of vegetables grown on contaminated soils. RESULTS: In the area situated far from mining and smelting activities, the pseudo total Pb concentration (12 – 51 mg kg(−1) dw) was found to be comparable to that normally found in unpolluted areas. In the area from the vicinity of the Pb smelter very high concentrations of pseudo-total Pb (850 – 9300 mg kg(−1) dw) were found. The average concentrations of Pb accumulated in onion, garlic, carrot, and parsley grown on this contaminated soils were 18, 48, 38 and 91 mg kg(−1) dw, respectively, and represent a risk factor for the consumers. CONCLUSIONS: The present study demonstrates the utility of DGT technique for the assessment of Pb bioavailability, since, generally, better correlations are obtained between the effective Pb concentration and Pb concentration in vegetables than for bioavailable Pb determined by chemical extractions and Pb concentration in vegetables. |
format | Online Article Text |
id | pubmed-4114113 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-41141132014-08-05 Real and simulated bioavailability of lead in contaminated and uncontaminated soils Senila, Marin J Environ Health Sci Eng Research Article BACKGROUND: Lead (Pb) is a toxic element that occurs in elevated concentrations in soils, mostly as a result of anthropogenic activities. This study assess the Pb bioavailability in soils from two areas with different contamination level using Diffusive Gradients in Thin-Films (DGT) technique, single extractions and metal contents of vegetables grown on contaminated soils. RESULTS: In the area situated far from mining and smelting activities, the pseudo total Pb concentration (12 – 51 mg kg(−1) dw) was found to be comparable to that normally found in unpolluted areas. In the area from the vicinity of the Pb smelter very high concentrations of pseudo-total Pb (850 – 9300 mg kg(−1) dw) were found. The average concentrations of Pb accumulated in onion, garlic, carrot, and parsley grown on this contaminated soils were 18, 48, 38 and 91 mg kg(−1) dw, respectively, and represent a risk factor for the consumers. CONCLUSIONS: The present study demonstrates the utility of DGT technique for the assessment of Pb bioavailability, since, generally, better correlations are obtained between the effective Pb concentration and Pb concentration in vegetables than for bioavailable Pb determined by chemical extractions and Pb concentration in vegetables. BioMed Central 2014-07-14 /pmc/articles/PMC4114113/ /pubmed/25097761 http://dx.doi.org/10.1186/2052-336X-12-108 Text en Copyright © 2014 Senila; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. |
spellingShingle | Research Article Senila, Marin Real and simulated bioavailability of lead in contaminated and uncontaminated soils |
title | Real and simulated bioavailability of lead in contaminated and uncontaminated soils |
title_full | Real and simulated bioavailability of lead in contaminated and uncontaminated soils |
title_fullStr | Real and simulated bioavailability of lead in contaminated and uncontaminated soils |
title_full_unstemmed | Real and simulated bioavailability of lead in contaminated and uncontaminated soils |
title_short | Real and simulated bioavailability of lead in contaminated and uncontaminated soils |
title_sort | real and simulated bioavailability of lead in contaminated and uncontaminated soils |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4114113/ https://www.ncbi.nlm.nih.gov/pubmed/25097761 http://dx.doi.org/10.1186/2052-336X-12-108 |
work_keys_str_mv | AT senilamarin realandsimulatedbioavailabilityofleadincontaminatedanduncontaminatedsoils |