Santos Josineide Marques do Nascimento, Santos Júnior José Araújo Dos, Melo Ana Maria Mendoça de Albuquerque, Amaral Romilton Dos Santos, Menezes Rômulo Simões Cezar, Fernández Zahily Herrero, Rojas Lino Angel Valcárcel, Bezerra Jairo Dias, da Silva Alberto Antônio, Damascena Kennedy Francys Rodrigues, Medeiros Nilson Vicente da Silva
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.
Biophysics and Radiobiology Department, Bioscience Center, Federal University of Pernambuco, Av. Moraes Rego, 1235, Cidade Universitária, 50670-420 Recife/PE, Brazil.
Radiat Prot Dosimetry. 2018 Jan 1;178(1):112-115. doi: 10.1093/rpd/ncx082.
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.
据报道，巴西东北部帕拉伊巴州的特里温福市健康问题有所增加。这种情况被归因于环境辐射，因为邻近市镇存在铀矿。本研究旨在对特里温福市进行辐射测量调查，以确定室外环境辐射暴露产生的有效剂量。结果通过使用伽马能谱系统进行“现场”测量获得。结果范围为0.06至0.38毫希沃特/年，平均为0.20毫希沃特/年。由于有效剂量率值较低，我们得出结论，该地区的特点是背景辐射较低。因此，天然放射性可能不会直接影响该地区癌症发病率的上升。然而，有必要在该领域开展补充研究，以评估土壤、岩石、植被和水中天然放射性产生的摄入和吸入天然放射性核素潜在暴露剂量。
