Geostatistical estimation of chemical contamination in stream sediments: The case study of Vale das Gatas mine (northern Portugal)

Salgueiro, Ana Rita; Ávila, Paula Freire; Pereira, Henrique Garcia; Oliveira, J. M. Santos

doi:10.1016/j.gexplo.2007.10.005

Cited by 14 publications

(6 citation statements)

References 10 publications

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“…The tailings, which still contain metals, were deposited on the ground. Exposure of these materials to air and water produces acidic water, facilitating the release of contaminants into the surrounding environments (Á vila et al 2005;Favas 2002;Salgueiro et al 2008). In this mine site, tailings and acid drainage from the mine galleries (Fig.…”

Section: Studied Areamentioning

confidence: 96%

Temporal variation in the arsenic and metal accumulation in the maritime pine tree grown on contaminated soils

Favas

Pratas

Prasad

2012

Int. J. Environ. Sci. Technol.

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The uptake of arsenic and other metals (iron, manganese, copper, zinc, lead, nickel and tungsten) by Pinus pinaster Aiton (the maritime pine tree) growing in soils and tailings around an abandoned mine (northern Portugal) was investigated. Aerial parts of Pinus pinaster trees were sampled from three substrate areas: a background area, in mine contaminated soils and in tailings. Vegetation material was separated into needles and stems and subdivided into tissues of different maturities (1-, 2-, 3-and 4-years-old). The sampling of the substrate in each area was also undertaken. In general, vegetation concentrations were strongly related to substrate concentrations. The results show that the contents of several elements depend as much on the plant organ as on the age of the tissue. For the researched elements, this species shows a great variability in behavior depending on the age of the organ. The data indicate that the older needles constitute the best samples for use in a conjunct biogeochemical analysis of these elements.

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Section: Studied Areamentioning

confidence: 96%

Temporal variation in the arsenic and metal accumulation in the maritime pine tree grown on contaminated soils

Favas

Pratas

Prasad

2012

Int. J. Environ. Sci. Technol.

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“…Alguns pesquisadores têm trabalhado a aplicação de krigagem indicativa (BASTANTE et al, 2005;SALGUEIRO et al, 2008;LEE et al, 2007), de krigagem fatorial e da cokrigagem. Neste trabalho,…”

Section: Introductionunclassified

Estatística descritiva e estacionaridade em variáveis geoquímicas ambientais

Assumpção

Hadlich²

2017

Eng. Sanit. Ambient.

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of soils and sediments collected in the field. We also determined the values of pH, salinity, total nitrogen, phosphorus, organic matter and particle size.Statistical analyzes, semivariogram development, ordinary kriging use and, lastly, cross validation were performed to measure the uncertainty of the previous measurement of data. It was found, in this work, by means of the variograms that although data were ordinary, they showed stationarity. In addition, the parameter of descriptive statistics that mostly correlates directly with the ordinary kriging is variance.

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“…Climate conditions, topography, texture of soil and of the mine waste, vegetation, and site management influence the dispersion of contaminants towards the different compartments of ecosystems . Due to this dispersion, high contents of heavy metals in soils and stream sediments in the vicinity of former mining sites had been reported . In such context, food crops grown in surrounding contaminated agricultural lands may also be impacted .…”

Section: Introductionmentioning

confidence: 99%

Health Risk Assessment in Calcareous Agricultural Soils Contaminated by Metallic Mining Activity Under Mediterranean Climate

Béjaoui

Kolsi-Benzina

Sappin‐Didier

et al. 2016

CLEAN Soil Air Water

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The agricultural lands surrounding the ancient mine site of Jebel Ressas (Tunisia) have been contaminated mainly due to the mining waste dumps left without environment protection measures. The metal contamination of agricultural soils and crops was studied to evaluate the local population health risk. The results show the soil Cd and Pb contamination over an area of 180 ha and up to 5 km distance from the dumps. The toxic metals contents in soil exceeded the maximum allowable Canadian limits for agricultural soils, reaching 231 and 20 100 mg kg−1 for cadmium (Cd) and lead (Pb), respectively, but decreasing with the distance from the dumps. Although a low solubility and availability of metals could be expected within the calcareous soils of this area, metals appeared to be absorbed by edible plants (fruits and vegetables). High contents in parsley and mallow were recorded, reaching up to four times the allowable limits (EC 1881/2006) for Cd, and 26 times for Pb. Local population exposure to metals by both soil ingestion and consumption of contaminated plants has been estimated and the health risk has been confirmed for farmlands inhabitants, especially for children. The major source of risk for the local population is dietary. Soil dust contribution to health risk is at the most 3.4% for adults and at the most 13.1% for children.

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Geostatistical estimation of chemical contamination in stream sediments: The case study of Vale das Gatas mine (northern Portugal)

Cited by 14 publications

References 10 publications

Temporal variation in the arsenic and metal accumulation in the maritime pine tree grown on contaminated soils

Temporal variation in the arsenic and metal accumulation in the maritime pine tree grown on contaminated soils

Estatística descritiva e estacionaridade em variáveis geoquímicas ambientais

Health Risk Assessment in Calcareous Agricultural Soils Contaminated by Metallic Mining Activity Under Mediterranean Climate

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