Teores de Arsênio em solos de três regiões do estado de Santa Catarina

Souza, Leticia Cristina de; Campos, Mari Lucia; Reichert, Gabriela; Moura, Carolina Natel de

doi:10.4136/ambi-agua.1746

Cited by 2 publications

(2 citation statements)

References 20 publications

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“…6, n. 14, p. 803-817. Oliveira et al, 2016;Souza et al, 2016;Pereira et al, 2016), hydride generation combined with inductively coupled plasma optical emission spectrometry HG ICP OES (Kim et al, 2019), hydride generation combined with atomic fluorescence spectrometry (HG AFS) (Wang et al, 2016), microwave induced plasma optical emission spectrometry (MIP OES) (Gallego Ríos et al, 2018), visible ultraviolet spectroscopy (UV VIS) (Gürkan et al, 2015), total reflection X-ray fluorescence (TXRF) (Pierangeli et al, 2015) and portable X-ray fluorescence (PXRF) (García-Rico et al, 2019;Kim et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Arsenic quantification techniques and ISO/IEC 17025 accreditation in Brazil

Santos¹,

Busato²,

Heringer³

et al. 2019

Rev. Bras. Gest. Amb. Sustent.

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The importance of arsenic (As) quantification in environmental compartments is due to its risks to ecosystems and public health. There are reports of high concentrations of this metalloid in Brazil and technological differences between states are observed. The objective of this work was to present and discuss current scenarios of accreditation and compare the limit of quantification (LOQ) of As by analytical technique in Brazil. Data from accredited laboratories were collected on Inmetro website and in state metrological networks and then grouped and analyzed by state, matrix and analytical technique. There are large discrepancies between the number of laboratories per state and a good correlation with gross domestic product (GDP). Almost all laboratories have a LOQ less than the environmental limits. The observed list of techniques sorted from lowest to highest LOQ values is: for liquid samples ICP MS (inductively coupled plasma mass spectrometry), ET AAS (electrothermal atomic absorption spectrometry), HG AAS (hydride generation combined with atomic absorption spectrometry) or HG ICP OES (hydride generation combined with inductively coupled plasma optical emission spectrometry) and UV VIS (visible ultraviolet spectroscopy); for solids samples HG ICP OES, ICP MS, HG AAS, ET AAS and FAAS (flame atomic absorption spectrometry); and for bioindicators ICP MS, HG ICP OES. Analysis of As species is accredited in only one laboratory, but does not include all species.

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Section: Introductionmentioning

confidence: 99%

Arsenic quantification techniques and ISO/IEC 17025 accreditation in Brazil

Santos¹,

Busato²,

Heringer³

et al. 2019

Rev. Bras. Gest. Amb. Sustent.

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“…Natural contents determined byHugen et al 2013, Hugen, 2010Souza, 2015, Suppi et al 2018 Calculation of the recovery percentage: %recovery = [(recovery content * 100/certified content)]. Source: Resource data.…”

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confidence: 99%

Trace Elements Reference Values for Soils from Santa Catarina, Brazil

Suppi¹,

Souza

Hugen

et al. 2022

Ensaios Ciênc.

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The presence of trace elements in the soils, above its natural concentrations, can indicate anthropogenic contamination. Therefore, knowing the natural level of trace elements contents in soils is extremely important in monitoring and remediating contaminated areas. The Brazilian National Environment Council (CONAMA) determines that the states and the Federal District establish the Quality Reference Values (QRV), based on the natural levels of inorganic substances content in soils. Thus, this study aimed to determine the QRV of barium (Ba), cadmium (Cd), nickel (Ni), copper (Cu), zinc (Zn), chromium (Cr), lead (Pb), manganese (Mn) and cobalt (Co) for soils from Santa Catarina. For such, the natural content levels of Cu, Zn, Cr, Pb, Ba, Cd, Ni, Co and Mn were obtained for 43 representative profiles from the state. The natural content and the Quality Reference Values determination for soils from Santa Catarina complied with that requested by the current legislation. The QRV (mg kg-1) was determined based on the 75th percentile (upper quartile) and it was evident, due to the differences among the source materials in SC soils, the need in keeping it by soil groups with similar physical and chemical characteristics, in order to reduce the error possibility in future inspections. Keywords: Natural Contents. Representative Soils. Environmental Monitoring. Environmental Pollution. Resumo A presença de elementos-traço nos solos acima das concentrações naturais pode indicar contaminação antrópica. Sendo assim, o conhecimento dos teores naturais de elementos-traço dos solos é de extrema importância no monitoramento e remediação de áreas contaminadas. O Conselho Nacional de Meio Ambiente (CONAMA) determina que os estados e o Distrito Federal estabeleçam os Valores de Referência de Qualidade (VRQ), baseados nos teores naturais de substâncias inorgânicas nos solos. Dessa forma, este trabalho objetivou determinar os VRQ de bário (Ba), cádmio (Cd), níquel (Ni), cobre (Cu), zinco (Zn), cromo (Cr), chumbo (Pb), manganês (Mn) e cobalto (Co) para solos de Santa Catarina. Para tanto foram utilizados os teores naturais de Cu, Zn, Cr, Pb, Ba, Cd, Ni, Co e Mn obtidos para 43 perfis representativos do estado. Os teores naturais e a determinação dos Valores de Referência de Qualidade para solos de Santa Catarina obedeceram ao preconizado pela legislação vigente. Os VRQ foram determinados com base no percentil 75 (quartil superior) e devido às diferenças entre materiais de origem nos solos de SC, viu-se a necessidade de manter os VRQ por grupo de solos com características físicas e químicas semelhantes, a fim de reduzir a possiblidade de erros em futuras fiscalizações. Palavras-chave: Teores Naturais. Solos Representativos. Monitoramento Ambiental. Poluição Ambiental.

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Teores de Arsênio em solos de três regiões do estado de Santa Catarina

Cited by 2 publications

References 20 publications

Arsenic quantification techniques and ISO/IEC 17025 accreditation in Brazil

Arsenic quantification techniques and ISO/IEC 17025 accreditation in Brazil

Trace Elements Reference Values for Soils from Santa Catarina, Brazil

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