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L E N Conde - One of the best experts on this subject based on the ideXlab platform.
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plants growing in Abandoned Mines of portugal are useful for biogeochemical exploration of arsenic antimony tungsten and mine reclamation
Journal of Geochemical Exploration, 2005Co-Authors: Joao Pratas, M N V Prasad, Helena Freitas, L E N CondeAbstract:Several plants across taxonomic hierarchy have evolved heavy metal tolerance strategies and detoxification mechanisms that enable them to survive, grow and reproduce in metal contaminated and polluted sites. Plants growing on the Abandoned Portuguese Mines, highly contaminated with arsenic (As), antimony (Sb) and tungsten (W), have been studied for their biogeochemical prospecting and mine stabilization potential. The results of soil analysis show relevant anomalies of As, Sb and W. We have observed that the plant species accumulating tungsten are Digitalis purpurea, Chamaespartium tridentatum, Cistus ladanifer, Pinus pinaster, Erica umbellata, and Quercus ilex subsp. ballota. Accumulators of antimony are D. purpurea, E. umbellata, Calluna vulgaris and C. ladanifer. Accumulations of arsenic are found in the old needles of P. pinaster, Calluna vulgaris and C. tridentatum and leaves of C. ladanifer, E. umbellate and Q. ilex subsp. ballota. These are the key stone species allowing biogeochemical delineation of areas of anomalous soil composition.
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plants growing in Abandoned Mines of portugal are useful for biogeochemical exploration of arsenic antimony tungsten and mine reclamation
Journal of Geochemical Exploration, 2005Co-Authors: Joao Pratas, M N V Prasad, Helena Freitas, L E N CondeAbstract:Several plants across taxonomic hierarchy have evolved heavy metal tolerance strategies and detoxification mechanisms that enable them to survive, grow and reproduce in metal contaminated and polluted sites. Plants growing on the Abandoned Portuguese Mines, highly contaminated with arsenic (As), antimony (Sb) and tungsten (W), have been studied for their biogeochemical prospecting and mine stabilization potential. The results of soil analysis show relevant anomalies of As, Sb and W. We have observed that the plant species accumulating tungsten are Digitalis purpurea, Chamaespartium tridentatum, Cistus ladanifer, Pinus pinaster, Erica umbellata, and Quercus ilex subsp. ballota. Accumulators of antimony are D. purpurea, E. umbellata, Calluna vulgaris and C. ladanifer. Accumulations of arsenic are found in the old needles of P. pinaster, Calluna vulgaris and C. tridentatum and leaves of C. ladanifer, E. umbellate and Q. ilex subsp. ballota. These are the key stone species allowing biogeochemical delineation of areas of anomalous soil composition.
Eduardo O Leidi - One of the best experts on this subject based on the ideXlab platform.
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soil plant system and potential human health risk of chinese cabbage and oregano growing in soils from mn and fe Abandoned Mines microcosm assay
Environmental Geochemistry and Health, 2020Co-Authors: Sabina Rossinioliva, Maria Manuela Abreu, Erika S Santos, Eduardo O LeidiAbstract:In Portugal, many Abandoned Mines are often close to agricultural areas and might be used for plant food cultivation. Soils in the vicinity of two Mn- and Fe-Abandoned Mines (Ferragudo and Rosalgar, SW of Portugal) were collected to cultivate two different food species (Brassica rapa subsp. pekinensis (Lour.) Hanelt and Origanum vulgare L.). Chemical characterization of the soil-plant system and potential risk of adverse effects for human health posed by plants associated with soil contamination, based on the estimation of hazard quotient (HQ), were assessed in a microcosm assay under greenhouse conditions. In both soils, the average total concentrations of Fe and Mn were above the normal values for soils in the region and their concentration in shoots of both species was very high. Brassica rapa subsp. pekinensis grew better in Ferragudo than in Rosalgar soils, and it behaved as an excluder of Cu, Mn, Fe, S and Zn in both soils. The HQ for Cu, Fe, Mn and Zn in the studied species grown on both soils was lower than unit indicating that its consumption is safe. The high Mn tolerance found in both species might be due in part to the high contents of Fe in the soil available fraction that might contribute to an antagonism effect in the uptake and translocation of Mn. The obtained results emphasize the need of further studies with different food crops before cultivation in the studied soils to assess health risks associated with high metal intake.
Joao Pratas - One of the best experts on this subject based on the ideXlab platform.
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plants growing in Abandoned Mines of portugal are useful for biogeochemical exploration of arsenic antimony tungsten and mine reclamation
Journal of Geochemical Exploration, 2005Co-Authors: Joao Pratas, M N V Prasad, Helena Freitas, L E N CondeAbstract:Several plants across taxonomic hierarchy have evolved heavy metal tolerance strategies and detoxification mechanisms that enable them to survive, grow and reproduce in metal contaminated and polluted sites. Plants growing on the Abandoned Portuguese Mines, highly contaminated with arsenic (As), antimony (Sb) and tungsten (W), have been studied for their biogeochemical prospecting and mine stabilization potential. The results of soil analysis show relevant anomalies of As, Sb and W. We have observed that the plant species accumulating tungsten are Digitalis purpurea, Chamaespartium tridentatum, Cistus ladanifer, Pinus pinaster, Erica umbellata, and Quercus ilex subsp. ballota. Accumulators of antimony are D. purpurea, E. umbellata, Calluna vulgaris and C. ladanifer. Accumulations of arsenic are found in the old needles of P. pinaster, Calluna vulgaris and C. tridentatum and leaves of C. ladanifer, E. umbellate and Q. ilex subsp. ballota. These are the key stone species allowing biogeochemical delineation of areas of anomalous soil composition.
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plants growing in Abandoned Mines of portugal are useful for biogeochemical exploration of arsenic antimony tungsten and mine reclamation
Journal of Geochemical Exploration, 2005Co-Authors: Joao Pratas, M N V Prasad, Helena Freitas, L E N CondeAbstract:Several plants across taxonomic hierarchy have evolved heavy metal tolerance strategies and detoxification mechanisms that enable them to survive, grow and reproduce in metal contaminated and polluted sites. Plants growing on the Abandoned Portuguese Mines, highly contaminated with arsenic (As), antimony (Sb) and tungsten (W), have been studied for their biogeochemical prospecting and mine stabilization potential. The results of soil analysis show relevant anomalies of As, Sb and W. We have observed that the plant species accumulating tungsten are Digitalis purpurea, Chamaespartium tridentatum, Cistus ladanifer, Pinus pinaster, Erica umbellata, and Quercus ilex subsp. ballota. Accumulators of antimony are D. purpurea, E. umbellata, Calluna vulgaris and C. ladanifer. Accumulations of arsenic are found in the old needles of P. pinaster, Calluna vulgaris and C. tridentatum and leaves of C. ladanifer, E. umbellate and Q. ilex subsp. ballota. These are the key stone species allowing biogeochemical delineation of areas of anomalous soil composition.
Michel Buès - One of the best experts on this subject based on the ideXlab platform.
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Modelling the evolution of water quality in Abandoned Mines of the Lorraine Iron Basin
Journal of Hydrology, 2006Co-Authors: Pauline Collon, Robert Fabriol, Michel BuèsAbstract:Mining operations disrupt the local groundwater balance both during and after min- ing. The galleries excavated during mining often require dewatering and thus restructure the groundwater flow. Then, once mining and dewatering have ceased, the Mines flood and the groundwater attempts to attain a new chemical and dynamic equilibrium. Mine flooding in the Lorraine Iron Basin (France) over the past 20 years has resulted in a degradation of the groundwater quality, as indicated by high concentrations of SO4, Ca, Na, Mg, K, Mn and B, mak- ing it unsuitable for human consumption. Before new resource management schemes can be implemented, we must predict the long-term evolution of the groundwater’s discharge and quality. Few spatially distributed data being available, a global approach has been adopted that consists in representing the iron basin as a network of chemical reactors. Flow rates through the network are calculated by processing available data records with an inverse rainfall-discharge model. Each reactor includes a specific chemical kinetic model for the rocks of the Lorraine Iron Basin (LIB), the kinetic constants having been determined from experimental studies. This approach was applied to the South Basin of the LIB, Abandoned in 1995. The model can predict the concentration of major elements (SO4, Na, Ca, Mg and HCO3) in the groundwater at its over- flow and gives an order of magnitude for elements such as K with lower concentrations. The global approach developed to model the evolution of groundwater quality when Mines are flooded would seem to be well suited to the LIB case, probably due to the homogeneity in the distribution of the various types of mining methods at the mine reservoir scale.
Domenico De Luca - One of the best experts on this subject based on the ideXlab platform.
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linking oral bioaccessibility and solid phase distribution of potentially toxic elements in extractive waste and soil from an Abandoned mine site case study in campello monti nw italy
Science of The Total Environment, 2019Co-Authors: Neha Mehta, Tatiana Cocerva, Sabrina Cipullo, Elio Padoan, Giovanna Antonella Dino, Franco Ajmonemarsan, Siobhan Cox, Frederic Coulon, Domenico De LucaAbstract:Abstract Oral bioaccessibility and solid phase distribution of potentially toxic elements (PTE) from extractive waste streams were investigated to assess the potential human health risk posed by Abandoned Mines. The solid phase distribution along with micro-X-ray fluorescence (micro-XRF) and scanning electron microscopy (SEM) analysis were also performed. The results showed that the total concentrations of PTE were higher in
