Background and Reference Values of Metals in Soils from Paraíba State, Brazil

Júnior, Agenor Bezerra de Almeida; Nascimento, Clístenes Williams Araújo do; Biondi, Caroline Miranda; Souza, Adaílson Pereira de; Barros, Felipe Martins do Rêgo

doi:10.1590/18069657rbcs20150122

Cited by 35 publications

(21 citation statements)

References 18 publications

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“…The differences among the QRVs for each soil show how challenging the establishment of a single and generic QRV for such diverse environments will be. The results clearly showed the need for determining a soil-type specific QRV, as similarly recommended for heavy metals in soils by Santos and Alleoni (2013 (Cetesb, 2001;Caires, 2009;Santos and Alleoni, 2013;Preston et al, 2014), while few studies suggested QRVs based on the 90 th percentile (Paye et al, 2010;Almeida Júnior, 2016 (Table 7). The vast difference between the percentiles highlights that the establishment of QRVs based on the 75 th percentile can significantly restrict the assessment.…”

Section: Quality Reference Values (Qrvs) Of Radionuclidesmentioning

confidence: 92%

Baseline and Quality Reference Values for Natural Radionuclides in Soils of Rio de Janeiro State, Brazil

Ribeiro

Lauria

Silva

et al. 2018

Rev. Bras. Ciênc. Solo

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Section: Quality Reference Values (Qrvs) Of Radionuclidesmentioning

confidence: 92%

Baseline and Quality Reference Values for Natural Radionuclides in Soils of Rio de Janeiro State, Brazil

Ribeiro

Lauria

Silva

et al. 2018

Rev. Bras. Ciênc. Solo

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“…Therefore, this practice should be veriied by the environmental control and monitoring agencies of each state or territory. The most common and efective tool developed by these countries is the formulation of speciic laws to monitor and protect the quality of soils and groundwater, which are in turn based on surveys of the critical contents of these substances, as well as studies of their respective potential for damage to the environment and to human health [60,61].…”

Section: Necator Americanus Ancylostomiasismentioning

confidence: 99%

Solid Waste in Agricultural Soils: An Approach Based on Environmental Principles, Human Health, and Food Security

Boechat¹,

Arauco²,

Duda³

et al. 2017

Solid Waste Management in Rural Areas

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In recent decades, projections involving population growth, changes in consumption paterns, modiications of the wastes produced, and a signiicant increase in resource extraction have caused concern in the scientiic world, in treatment companies, and in environmental and governmental agencies throughout the world, regarding the destination of the large volume of solid wastes generated, the relatively high contents of potentially toxic, carcinogenic and mutagenic substances and pathogenic microorganisms. Waste management has become very important to ensure elementary resources such as water, phosphorus, and food in the future. The recycling policy thus requires that wastes be classiied in terms of their appropriateness for new uses and also based on their origins and hazardousness of handling. These classiications are essential in order to allow a minimum of rationality in their new destinations. Currently, several studies have been performed to use solid wastes from human activities as soil conditioners and/or fertilizers for increasing crop productivity. Therefore, studies that monitor organic waste efects on agricultural soils deserve the atention of the international scientiic community, as it enables increases in the productivity of agricultural crops, iber, and biomass energy combined to reduce risks to human, plant, and animal health and environment.

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“…Studies in tropical wetland areas, xeric shrubland, savanna-like vegetation, and Atlantic forest in Brazil have shown metal(loid) contents associated with parent material (Licht et al, 2006;Coringa et al, 2014;Souza et al, 2015;Almeida Júnior et al, 2016). The highest contents of Ti are observed in mafic rocks.…”

Section: Introductionmentioning

confidence: 99%

Geochemical Signature of Amazon Tropical Rainforest Soils

Souza

Fontes

Gilkes

et al. 2018

Rev. Bras. Ciênc. Solo

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Evaluating soil geochemical diversity in the Amazon Basin has been a challenge largely because most study sites have been at the edge of the basin and it is difficult to get samples in such a region. Here we show that even among the most weathered soils, physicochemical soil properties express lithology. Our results are based on topsoil samples collected from different locations in minimally disturbed areas in the state of Amazonas, Brazil. Soil properties were measured using methods which are suitable for highly developed soils. The Chemical Index Alteration and Weathering Index of Parker was calculated based on the content of metal(loid)s in soils determined by X-ray fluorescence. Descriptive statistics, Pearson correlation, and Principal Component Analysis (PCA) were performed on data. In general, Amazon rainforest soils are more deeply weathered than soils in other Brazilian biomes and tropical rainforests in Asia and Africa. The high coefficient of variation of metal(loid) contents express pedogenesis and parent material diversity. Correlation analysis indicated that the tri-pentavalent elements are strongly associated with Al and Fe contents in the topsoil. In contrast, mono-divalent elements are correlated with sand and silt fractions. According to PCA, five soil groups with defined geochemical compositions and degrees of weathering could be identified: i) acidic sandy podzolized soils; ii) acidic loamy ferralitic soils with the highest content of tri-pentavalent ions; iii) acidic clayey kaolinitic soils with low metal(loid) contents; iv) acidic loamy kaolinitic soils with low metal(loid) contents; and v) silty neutral 2:1 clay soils. This study is the first effort to analyze the geochemical diversity in Amazon rainforest soils. These data are extremely valuable in determining the geochemical background for these soil types and this region. Geochemical variability can be predicted to some extent by lithology and pedogenesis, which can be applied to define the sampling required in future studies.

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Background and Reference Values of Metals in Soils from Paraíba State, Brazil

Cited by 35 publications

References 18 publications

Baseline and Quality Reference Values for Natural Radionuclides in Soils of Rio de Janeiro State, Brazil

Baseline and Quality Reference Values for Natural Radionuclides in Soils of Rio de Janeiro State, Brazil

Solid Waste in Agricultural Soils: An Approach Based on Environmental Principles, Human Health, and Food Security

Geochemical Signature of Amazon Tropical Rainforest Soils

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