Natural radioactivity and external hazard index in Brazilian sands

Autor(es)

Guazzelli, M. A. ^[1] ; Medina, N. H. ^[2] ; Aguiar, V. A. P. ^[2]

Afiliação do(s) autor(es)

^[1] Ctr Univ FEI, BR-09850901 Sao Bernardo Do Campo - Brazil

^[2] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY; v. 328, n. 3, p. 903-910, JUN 2021.
• Citações Web of Science: 0

Resumo

The distribution of natural radiation from Brazilian beach sands was studied using gamma-ray spectrometry. While in most of the regions studied the dose due to external exposure to gamma-rays, proceeding from natural terrestrial elements, are within the values 0.3 and 1.0 mSv/year, some sand samples from Bahia, Rio de Janeiro and Sao Paulo states present higher radioactivity levels due to the presence of monazite and zircon, exceeding the world average value for external exposure due to naturally occurring radionuclides. (AU)

• Processo FAPESP: 07/04663-3 - Estudo da radiação natural e caracterização de solos brasileiros
• Beneficiário: Marcilei Aparecida Guazzelli
• Modalidade de apoio: Auxílio à Pesquisa - Regular