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- Title
ENVIRONMENTAL IONIZING RADIATION DOSE OUTDOOR IN AN INHABITED AREA WITH A HIGH CONCENTRATION OF URANO-PHOSPHATE IN NORTHEAST OF BRAZIL.
- Authors
Amaral, Romilton dos Santos; Morais, Elaíze Nídia de Lima; Júnior, José Araújo dos Santos; Silva, Arykerne Nascimento Casado da; Bezerra, Jairo Dias; Junior, Otávio Pereira dos Santos
- Abstract
A marine phosphorus region with high concentrations of phosphate, coastwise of Pernambuco, Northeast of Brazil, is densely inhabited. Rock phosphate deposits naturally contain uranium ore that produces ionizing radiation from it and its natural descendants, furthermore, its thorium and potassium concentrations are comparable to those usually found in soils. Radiological monitoring of this environment is important to verify the occurrence of harmful effective doses for the adjacent population. This study aimed at the in situ radiometric monitoring in four cities of the north of the Metropolitan Region of Recife—Pernambuco, estimating the effective environmental dose to which the local population is subject. In total, 91 points were monitored with a discriminator-type detector. The outdoor environmental effective dose rates ranged from 1.99 ± 0.09 to 7.59 ± 0.36 mSv y−1, with an average of 2.60 ± 0.69 mSv y−1.
- Subjects
IONIZING radiation dosage; RADIOACTIVE contamination; NATURAL radioactivity; PHOSPHATE rock; GAMMA ray spectrometry
- Publication
Radiation Protection Dosimetry, 2018, Vol 181, Issue 3, p181
- ISSN
0144-8420
- Publication type
Article
- DOI
10.1093/rpd/ncy005