Development of a standard method for primary monitoring of exposure to environmental radiation
DOI:
https://doi.org/10.15392/bjrs.v10i1.1688Palavras-chave:
Background radiation, Geiger Mueller Counters, Radiometry, Meteorology.Resumo
All living things are constantly exposed to background radiation. The presence of radioactive materials in the earth's crust and cosmic radiation are largely responsible for this exposure. The present study aimed to develop a new methodology of easy applicability and low cost to carry out measurements of environmental background radiation and to be able to establish a map of environmental radiation for primary monitoring of these exposures. For that, ionizing radiation measurements, Meteorological and Radiometric measurements were performed. Geiger Mueller Counter (GM) was used, as it is widely used in services that use radioactive sources and research centers. Measurements obtained showed that there were no statistically significant changes in the 24 hours of measurements with the GM, in relation to the variations presented in the Meteorological and Radiometric measurements that changed according to the time of day. The average value of the background radiation readings was 0.0194 mR/h, with an average variance of 1.8E-06 and an average standard deviation of 1.35E-03. GM proved to be useful for primary measurement of background radiation. The map was developed using open source libraries for the Python programming language. The map may be hosted on an open access website, so that professionals, students and researchers may contribute, sending new data from different locations. It is essential that the levels of radiation exposure are demonstrated and understood. Easy access to this information may contribute to health organizations, agriculture and research centers to establish a baseline for future research.
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Referências
H. Nikjoo, S. Uehara, D. Emfietzoglou, Interaction of Radiation with Matter, CRC Press, 2012.
J.E. Turner, INTERACTION OF IONIZING RADIATION WITH MATTER, Health Physics. 88 (2005) 520–544. https://journals.lww.com/health-physics/Abstract/2005/06000/INTERACTION_OF_IONIZING_RADIATION_WITH_MATTER.2.aspx (accessed August 24, 2020).
D. Shahbazi-Gahrouei, M. Gholami, S. Setayandeh, A review on natural background radiation, Adv Biomed Res. 2 (2013). https://doi.org/10.4103/2277-9175.115821.
I. Shtangeeva, Uptake of uranium and thorium by native and cultivated plants, Journal of Environmental Radioactivity. 101 (2010) 458–463. https://doi.org/10.1016/j.jenvrad.2008.06.004.
M.C. Thorne, Background radiation: natural and man-made, J. Radiol. Prot. 23 (2003) 29–42. https://doi.org/10.1088/0952-4746/23/1/302.
S.H.U. Bowie, J. Plant, Natural radioactivity in the environment, Applied environmental geochemistry. (1983). http://inis.iaea.org/Search/search.aspx?orig_q=RN:16070776 (accessed August 24, 2020).
J.H. Hendry, S.L. Simon, A. Wojcik, M. Sohrabi, W. Burkart, E. Cardis, D. Laurier, M. Tirmarche, I. Hayata, Human exposure to high natural background radiation: what can it teach us about radiation risks?, J. Radiol. Prot. 29 (2009) A29–A42. https://doi.org/10.1088/0952-4746/29/2A/S03.
M.H. Magalhães, E.C.S. Amaral, I. Sachett, E.R.R. Rochedo, Radon-222 in Brazil: an outline of indoor and outdoor measurements, Journal of Environmental Radioactivity. 67 (2003) 131–143. https://doi.org/10.1016/S0265-931X(02)00175-3.
R.G. Sonkawade, K. Kant, S. Muralithar, R. Kumar, R.C. Ramola, Natural radioactivity in common building construction and radiation shielding materials, Atmospheric Environment. 42 (2008) 2254–2259. https://doi.org/10.1016/j.atmosenv.2007.11.037.
V.M. Jacomino, M. Canut, A. Magalhaes Gomes, M.I. Yoshida, D. Fields, Characterization studies for the reuse of phosphogypsum as a raw material in the civil construction industry of Brazil, WM Symposia, 1628 E. Southern Avenue, Suite 9 - 332, Tempe, AZ 85282 (United States), 2007. https://www.osti.gov/biblio/21294602 (accessed August 24, 2020).
C. Papastefanou, M. Manolopoulou, S. Stoulos, A. Ioannidou, E. Gerasopoulos, Coloured rain dust from Sahara Desert is still radioactive, Journal of Environmental Radioactivity. 55 (2001) 109–112. https://doi.org/10.1016/S0265-931X(00)00182-X.
N.D. Chau, M. Dulinski, P. Jodlowski, J. Nowak, K. Rozanski, M. Sleziak, P. Wachniew, Natural radioactivity in groundwater – a review, Isotopes in Environmental and Health Studies. 47 (2011) 415–437. https://doi.org/10.1080/10256016.2011.628123.
United Nations Scientific Committee on the Effects of Atomic Radiation, Sources, Effects and Risks of Ionizing Radiation, UNSCEAR 2012 Report: Report to the General Assembly, with Scientific Annexes A and B, UN, 2015. https://doi.org/10.18356/2ed43f39-en.
A. Ruano-Ravina, R. Wakeford, The Increasing Exposure of the Global Population to Ionizing Radiation, Epidemiology. 31 (2020) 155–159. https://doi.org/10.1097/EDE.0000000000001148.
A.M. Arogunjo, V. Höllriegl, A. Giussani, K. Leopold, U. Gerstmann, I. Veronese, U. Oeh, Uranium and thorium in soils, mineral sands, water and food samples in a tin mining area in Nigeria with elevated activity, Journal of Environmental Radioactivity. 100 (2009) 232–240. https://doi.org/10.1016/j.jenvrad.2008.12.004.
G.M. Kendall, M.P. Little, R. Wakeford, K.J. Bunch, J.C.H. Miles, T.J. Vincent, J.R. Meara, M.F.G. Murphy, A record-based case–control study of natural background radiation and the incidence of childhood leukaemia and other cancers in Great Britain during 1980–2006, Leukemia. 27 (2013) 3–9. https://doi.org/10.1038/leu.2012.151.
R.O. Bastos, E.M. Pascholati, Environmental gamma radiation in municipalities of Eastern of São Paulo State, Brazil, (2005) 9.
E.M. Souza, E.R.R. Rochedo, L.F.C. Conti, M.A.V. Wasserman, V. Melo, SURVEY ON BACKGROUND RADIATION ON GUANABARA BAY, (2007) 5.
E.M. Yoshimura, S.M. Otsubo, R.E.R. Oliveira, Gamma ray contribution to the ambient dose rate in the city of São Paulo, Brazil, Radiation Measurements. 38 (2004) 51–57. https://doi.org/10.1016/S1350-4487(03)00283-X.
N.M. Hassan, Y.J. Kim, J. Jang, B.U. Chang, J.S. Chae, Comparative study of precise measurements of natural radionuclides and radiation dose using in-situ and laboratory γ-ray spectroscopy techniques, Scientific Reports. 8 (2018) 14115. https://doi.org/10.1038/s41598-018-32220-9.
Physics in Nuclear Medicine - 4th Edition, (n.d.). https://www.elsevier.com/books/physics-in-nuclear-medicine/cherry/978-1-4160-5198-5 (accessed August 7, 2020).
Constituição da República Federativa do Brasil - Art. 225, (n.d.). https://www.senado.leg.br/atividade/const/con1988/con1988_02.07.2020/art_225_.asp (accessed August 24, 2020).
K.C.S. Salles, E.R.R. Rochedo, J.C.B. Fiel, M.A.V. Wasserman, CONTRIBUIÇÃO PARA O MAPEAMENTO DA RADIOATIVIDADE NATURAL NO BRASIL – EXPOSIÇÃO EXTERNA., Geochim. Bras. 33 (2019) 89–89. https://geobrasiliensis.emnuvens.com.br/geobrasiliensis/article/view/589 (accessed August 26, 2020).
H.E. Beck, N.E. Zimmermann, T.R. McVicar, N. Vergopolan, A. Berg, E.F. Wood, Present and future Köppen-Geiger climate classification maps at 1-km resolution, Scientific Data. 5 (2018) 180214. https://doi.org/10.1038/sdata.2018.214.
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