INVESTIGATION OF NATURAL RADIOACTIVITY AS A POSSIBLE DRIVER OF CANCER INCIDENCE IN PARAÍBA, NORTHEASTERN BRAZIL.

Autor:	Santos JMDN; Radioecology Group, Department of Nuclear Energy, Center of Technology and Geosciences, Federal University of Pernambuco, Av. Professor Luiz Freire, 1000, Cidade Universitária, 50740-545 Recife/PE, Brazil., Santos Júnior JAD; Radioecology Group, Department of Nuclear Energy, Center of Technology and Geosciences, Federal University of Pernambuco, Av. Professor Luiz Freire, 1000, Cidade Universitária, 50740-545 Recife/PE, Brazil., Melo AMMA; Biophysics and Radiobiology Department, Bioscience Center, Federal University of Pernambuco, Av. Moraes Rego, 1235, Cidade Universitária, 50670-420 Recife/PE, Brazil., Amaral RDS; Radioecology Group, Department of Nuclear Energy, Center of Technology and Geosciences, Federal University of Pernambuco, Av. Professor Luiz Freire, 1000, Cidade Universitária, 50740-545 Recife/PE, Brazil., Menezes RSC; Radioecology Group, Department of Nuclear Energy, Center of Technology and Geosciences, Federal University of Pernambuco, Av. Professor Luiz Freire, 1000, Cidade Universitária, 50740-545 Recife/PE, Brazil.; Biomass Group, Department of Nuclear Energy, Center of Technology and Geosciences, Federal University of Pernambuco, Av. Professor Luiz Freire, 1000, Cidade Universitária, 50740-545 Recife/PE, Brazil., Fernández ZH; Radioecology Group, Department of Nuclear Energy, Center of Technology and Geosciences, Federal University of Pernambuco, Av. Professor Luiz Freire, 1000, Cidade Universitária, 50740-545 Recife/PE, Brazil.; Center for Applied Technology and Nuclear Development, 30th Street, 502, PO Box 6122, Havana, Cuba., Rojas LAV; Radioecology Group, Department of Nuclear Energy, Center of Technology and Geosciences, Federal University of Pernambuco, Av. Professor Luiz Freire, 1000, Cidade Universitária, 50740-545 Recife/PE, Brazil.; Center for Applied Technology and Nuclear Development, 30th Street, 502, PO Box 6122, Havana, Cuba., Bezerra JD; Radioecology Group, Department of Nuclear Energy, Center of Technology and Geosciences, Federal University of Pernambuco, Av. Professor Luiz Freire, 1000, Cidade Universitária, 50740-545 Recife/PE, Brazil., da Silva AA; Radioecology Group, Department of Nuclear Energy, Center of Technology and Geosciences, Federal University of Pernambuco, Av. Professor Luiz Freire, 1000, Cidade Universitária, 50740-545 Recife/PE, Brazil.; Federal Institute of Education, Science and Technology of Pernambuco, Fazenda Sapé, s/n, Zona Rural, 55560-000 Barreiros, PE, Brazil., Damascena KFR; Radioecology Group, Department of Nuclear Energy, Center of Technology and Geosciences, Federal University of Pernambuco, Av. Professor Luiz Freire, 1000, Cidade Universitária, 50740-545 Recife/PE, Brazil., Medeiros NVDS; Radioecology Group, Department of Nuclear Energy, Center of Technology and Geosciences, Federal University of Pernambuco, Av. Professor Luiz Freire, 1000, Cidade Universitária, 50740-545 Recife/PE, Brazil.
Jazyk:	angličtina
Zdroj:	Radiation protection dosimetry [Radiat Prot Dosimetry] 2018 Jan 01; Vol. 178 (1), pp. 112-115.
DOI:	10.1093/rpd/ncx082
Abstrakt:	An increase of health problems has been reported in the city of Triunfo, Paraíba, NE Brazil. This pattern has been attributed to environmental radiation since there are uranium deposits in the neighboring municipalities. The present study aimed to carry a radiometric survey in Triunfo to determine effective dose from external outdoor radiation exposure. The results were obtained through 'in situ' measurements using a gamma spectrometry system. The results ranged from 0.06 to 0.38 mSv/y, mean of 0.20 mSv/y. Due to the low value of the effective dose rate, we concluded that the area is characterized by low background radiation. Therefore, natural radioactivity is probably not directly influencing the increase in cancer incidence in the region. However, there is a need for complementary studies in this area to evaluate the dose from potential exposure to ingested and inhaled natural radionuclides from natural radioactivity in soil, rocks, vegetation and water. (© The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.)
Databáze:	MEDLINE
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