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International Journal of Environmental Studies Volume 76, 2019 - Issue 2
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Original Articles

Naturally Pb-contaminated soils in uranium and thorium anomaly

Cleomacio Miguel da SilvaDepartamento de Biologia, Universidade de Pernambuco, Nazaré da Mata, Brasil;Mestrado em Gestão do Desenvolvimento Local Sustentável (GDLS)-FCAP-UPE, Recife, BrazilCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0002-0217-1087
ORCID Icon,
Crescêncio Andrade da Silva FilhoCentro Regional de Ciências Nucleares do Nordeste, Cidade Universitária, Recife, Brazil
,
João Adauto Souza NetoDepartamento de Geologia, Centro de Tecnologia e Geociências, Universidade Federal de Pernambuco, Recife, Brazil
,
Carlos Eduardo de Oliveira Costa JúniorFaculdade Integrada de Pernambuco-FIP, Recife, Brazil;Instituto Federal de Pernambuco-IFPE – Campus Recife, Recife
&
Fernando Carlos Araújo RibeiroComissão Nacional de Energia Nuclear, Instituto de Radioproteção e Dosimetria, Rio de Janeiro, Brazil
Pages 181-194 | Published online: 01 Oct 2018
 
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ABSTRACT

The paper reports an examination of the primary sources of stable lead (Pb) occurring in rocks and soils on dairy farms in the municipalities of Pedra and Venturosa in Pernambuco, Brazil. Lead in rock and soil was quantified by flame atomic absorption spectrophotometry. The Pb concentration in calcium silicate rock varied from 21 to 1124.00 mg.kg−1 and soil varied from 18 to 96 mg.kg−1. The lead concentration in granite rock varied from 6 to 440 mg.kg−1 and soil varied from 8 to 15 mg.kg−1. The results point to the rocks as the primary sources of lead.

Disclosure statement

No potential conflict of interest was reported by the authors.

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