The Soil Geochemical Atlas of Portugal: Overview and applications

Inácio, Manuela; Pereira, Virgínia; Pinto, Marina M. S. Cabral

doi:10.1016/j.gexplo.2007.10.004

Cited by 78 publications

(34 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, in all the soils these levels are low compared with literature values for Mediterranean agricultural soils [46,47]. The ZnEqT values (252 ± 135 mg kg −1 ) were also lower than Gil et al [12] obtained in Mediterranean greenhouse soils, and the present study's heavy metal total concentrations do not surpass the RV established by Inácio et al [24] in Portuguese soils or the GBC values of natural soils in the Mediterranean region established by Roca-Pérez et al [25]. <d.l.…”

Section: Resultscontrasting

confidence: 74%

“…The geochemical baseline concentration (GBC) and background level (BL) of different heavy metals in soils have been studied in various Mediterranean countries [12,18,[23][24][25][26][27][28]. It is widely accepted that the BL and GBC were the best approach to establish the levels of non-contaminated soils 26 Different approaches have been taken to establishing the GBC of trace elements in Mediterranean soils [12,18,[29][30][31].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Concentrations of Available Heavy Metals in Mediterranean Agricultural Soils and their Relation with Some Soil Selected Properties: A Case Study in Typical Mediterranean Soils

et al. 2014

View full text Add to dashboard Cite

Abstract:The characterization of the content of trace metals in soils is an instrument in many programs of environmental protection, including the establishment of regional-level standards to detect sites affected by contamination. The objectives of the present study were to study the available levels of Cd, Cr, Cu, Ni, Pb, and Zn in surface horizons of agricultural soils in a typical European Mediterranean region, to establish the geochemical for Cd, Cr, Cu, Ni, Pb, and Zn, respectively. Soil properties were found to be correlated with the available heavy metal content, suggesting that the enhanced mobility of heavy metals are related to anthropic activities.

show abstract

Section: Resultscontrasting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Concentrations of Available Heavy Metals in Mediterranean Agricultural Soils and their Relation with Some Soil Selected Properties: A Case Study in Typical Mediterranean Soils

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The content of As and Zn in horizon A in profile 1 (As = 165 mg kg −1 ; Zn = 543 mg kg −1 ) exceeds the AVs ("Action Values") established by Inácio et al (2008) (Table 5). According to the authors, the "Action values (AV), also called "intervention values", indicate concentrations above which there is an unacceptable risk to man or the environment due to soil contamination.…”

Section: Chemical Analysismentioning

confidence: 69%

“…Our study showed that: 1) a combination of magnetic, geochemical and pedological analyses is an effective method to study and characterise soils with different geological substrates, geographic distribution with relation to principal pollution sources and different distances measured from the urban center of Coimbra; 2) the conclusions highlight the importance of using environmental magnetism methods and techniques in the evaluation process of soil evolution and pollution history throughout time at surface and at depth. Table 5 Proposed standards for As, Co, Cr, Cu, Ni, Pb and Zn, in Portuguese soils (Inácio et al, 2008). …”

Section: Discussionmentioning

confidence: 99%

Magnetic, geochemical and pedological characterisation of soil profiles from different environments and geological backgrounds near Coimbra, Portugal

et al. 2014

View full text Add to dashboard Cite

This study presents an application of environmental magnetism techniques for the characterisation of the soils near Coimbra (central Portugal). Magnetic measurements, scanning electron microscopy and geochemical studies were carried out on samples collected in 6 soil profiles in order to find possible relationships and to interpret environmental implications. Magnetic susceptibility, saturation isothermal remanent magnetisation and isothermal remanent magnetisation at the backfield of 100 mT and 300 mT were measured. HardIRM %, SIRM/χ and S-ratios were also calculated. Polluted soils showed higher values of magnetic parameters in the superficial soil horizons closer to the roads, plants and urban areas. The lowest values were observed in the deeper horizons of the soil and in the areas least disturbed by human activity. The magnetic results also suggested that the magnetic signal of these soils is mainly influenced by ferrimagnetic magnetite-like minerals and with only a minor contribution from antiferromagnetic carriers (such as hematite minerals). In unpolluted soils, lithogenic contribution is reflected by the enhancement of magnetic susceptibility near parental rock material. Scanning electron microscope images of the topsoil samples revealed the presence of magnetic spherules typical of vehicular exhaust and combustion processes. This evidence suggests that the atmospheric deposition of fly ash is the main reason for the enhancement of the magnetic signal in the topsoil. Chemical analyses showed that the concentration of various heavy metals was higher than the mean background values for Portuguese soils, and higher in superficial soils. Heavy metals showed significant positive correlation with magnetic properties. The conclusions highlight the importance of using environmental magnetism methods and techniques in the evaluation process of soil evolution and pollution history throughout time.

show abstract

“…Resulting databases are multi-purpose basic tools with application in different areas, such as in environmental studies, agriculture, geomedicine, etc. (Darnley & Garret, 1990;Appleton & Ridgway, 1993;Darnley et al, 1995;Tarvained, 1996;Xie Xuejing et al, 1997;Plant et al, 2001;Albanese et al, 2007;Inácio, 2008) and national geochemical surveys became a priority for many countries.…”

Section: Introductionmentioning

confidence: 99%

Estimated Background Values of Some Harmful Metals in Stream Sediments of Santiago Island (Cape Verde)

Pinto¹,

Silva²,

Silva³

et al. 2012

Geochemistry - Earth's System Processes

View full text Add to dashboard Cite

The Soil Geochemical Atlas of Portugal: Overview and applications

Cited by 78 publications

References 10 publications

Concentrations of Available Heavy Metals in Mediterranean Agricultural Soils and their Relation with Some Soil Selected Properties: A Case Study in Typical Mediterranean Soils

Concentrations of Available Heavy Metals in Mediterranean Agricultural Soils and their Relation with Some Soil Selected Properties: A Case Study in Typical Mediterranean Soils

Magnetic, geochemical and pedological characterisation of soil profiles from different environments and geological backgrounds near Coimbra, Portugal

Estimated Background Values of Some Harmful Metals in Stream Sediments of Santiago Island (Cape Verde)

Contact Info

Product

Resources

About