Determination of geochemical background for environmental studies of soils via the use of HNO3 extraction and Q–Q plots

Papastergios, Georgios; Fernández-Turiel, J. L.; Filippidis, Anestis; Gimeno, D.

doi:10.1007/s12665-010-0894-7

Cited by 9 publications

(5 citation statements)

References 52 publications

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“…The Q-Q plot supported the delimiting three classes that included geochemical background, baseline, and geochemical anomalies on the basis of their geometric mean (g) and geometric deviations (d) following the computation as demonstrated by Papastergios, Fernandez-Turiel, Filippidis, and Gimeno (2011) and Papastergios et al (2010) (Table 2). The analytical quality was assessed by inserting quality control and assurance samples SARM 1, SARM 2 and AMIS 17 for accuracy analysis.…”

Section: Methodsmentioning

confidence: 57%

“…Background and baseline calculations and their usefulness in environmental health monitoring Papastergios et al (2011) method (Table 3) was used to calculate the background and baseline values and other variables useful in assessing element impacts in the environments is presented in Table 3. The background values expressed as a range in this study ( not be accurate for the study area and will result in speculative conclusions that may be detrimental to human health particularly for the toxic elements.…”

Section: Resultsmentioning

confidence: 99%

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Determination of local background and baseline values of elements within the soils of the Birimian Terrain of the Wassa Area of Southwest Ghana

Kazapoe

Arhin

2019

Geology, Ecology, and Landscapes

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Section: Methodsmentioning

confidence: 57%

Section: Resultsmentioning

confidence: 99%

Determination of local background and baseline values of elements within the soils of the Birimian Terrain of the Wassa Area of Southwest Ghana

Kazapoe

Arhin

2019

Geology, Ecology, and Landscapes

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“…The hydrological analysis of the valleys can easily create a large area of mostly flat land, which seriously changes the actual surface characteristics. Thus, a large number of illogical long units appear in the formation of catchment areas, whose boundaries do not match the actual topographic lines [36]. However, the boundary of the positive catchment area corresponding to the ridgeline is consistent with the actual topography.…”

Section: The Restricted Datasetmentioning

confidence: 92%

Generation of Homogeneous Slope Units Using a Novel Object-Oriented Multi-Resolution Segmentation Method

Chen

et al. 2021

Water

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The generation of map units is a fundamental step for an appropriate assessment of landslide susceptibility. Recent studies have indicated that the terrain relief-based slope units perform better in homogeneity compared with the grid units. However, it is difficult at present to generate high-precision and high-matching slope units by traditional methods. The problem commonly concentrates in the plain areas without obvious terrain reliefs and the junction of sudden changes in terrain. In this paper, we propose a novel object-oriented segmentation method for generating homogeneous slope units. Herein, the multi-resolution segmentation algorithm in the image processing field is introduced, enabling the integration of terrain boundary conditions and image segmentation conditions in slope units. In order to illustrate the performances of the proposed method, Kitakyushu region in Japan is selected as a case study. The results show that the proposed method generates satisfactory slope units that satisfactorily reproduce the actual terrain relief, with the best within-unit and between-unit homogeneities compared with the previous methods, in particular at the plain areas. We also verify the effectiveness of the presented method through the sensitivity analysis using different resolutions of digital elevation models (DEMs) data of the region. It is reported that the presented approach is notably advanced in the requirements of the quality of DEM data, as the presented approach is less sensitive to DEM spatial resolution compared with other available methods.

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“…As some authors have pointed out (Esmaeili et al, 2014;Papastergios et al, 2011), a range of geochemical background values is more appropriate for describing the heterogeneity in an area. However, it is agreed that values obtained by the formula: median ± 2MAD (MAD = median i (|X i − median j (X j )|)) are more useful for estimating the range of background data than any other method (Beygi & Jalali, 2018;Reimann et al, 2005).…”

Section: Pollution Indicesmentioning

confidence: 99%

Assessment of trace element pollution in northern and western Iranian agricultural soils: a review

Jalali

Antoniadis

Najafi

2021

Environ Monit Assess

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samples had elevated PI values for Cd, 13.0% for Cu, and 16.7% for Pb, clearly indicating an anthropogenic contribution of these three elements. The IPI of the agricultural soils also indicated that most areas are classified as having moderate and high pollution. Higher contents of trace elements (except for Mn) were found in some cities of the Isfahan, Hamadan, and Tehran provinces. Excessive application of conventional and organic fertilizers, pesticides, animal manure, and sewage sludge for enhancing crop production is responsible for high trace element content in Iran's agricultural soils. This in turn, through the food chain, is a threat to human health. Analysis of the correlation between trace elements exhibited that Cu, Pb, and Zn (Cd, Pb and Zn) were very closely associated with each other, showing that their prevalent sources are common and the efforts to regulate them linked in common actions. We consider this evaluation as a viable approach to other similar areas in the Middle East and beyond, which could be used by environmental scientists for risk assessment and decision making.

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Determination of geochemical background for environmental studies of soils via the use of HNO3 extraction and Q–Q plots

Cited by 9 publications

References 52 publications

Determination of local background and baseline values of elements within the soils of the Birimian Terrain of the Wassa Area of Southwest Ghana

Determination of local background and baseline values of elements within the soils of the Birimian Terrain of the Wassa Area of Southwest Ghana

Generation of Homogeneous Slope Units Using a Novel Object-Oriented Multi-Resolution Segmentation Method

Assessment of trace element pollution in northern and western Iranian agricultural soils: a review

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