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- Title
INVESTIGATION OF NATURAL RADIOACTIVITY AS A POSSIBLE DRIVER OF CANCER INCIDENCE IN PARAÍBA, NORTHEASTERN BRAZIL.
- Authors
do Nascimento Santos, Josineide Marques; dos Santos Júnior, José Araújo; de Albuquerque Melo, Ana Maria Mendoça; dos Santos Amaral, Romilton; Menezes, Rômulo Simões Cezar; Fernández, Zahily Herrero; Rojas, Lino Angel Valcárcel; Dias Bezerra, Jairo; da Silva, Alberto Antônio; Damascena, Kennedy Francys Rodrigues; da Silva Medeiros, Nilson Vicente
- Abstract
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.
- Subjects
RADIOACTIVE substances in soils; DISEASE incidence; CANCER diagnosis; RADIATION doses; BACKGROUND radiation
- Publication
Radiation Protection Dosimetry, 2018, Vol 178, Issue 1, p112
- ISSN
0144-8420
- Publication type
Article
- DOI
10.1093/rpd/ncx082