Assessment of natural radioactivity in various commercial tiles used for building purposes in Nigeria

Abstract

Graphical abstract

Radioactivity and radiological hazards from a kaolin mining field in Ifonyintedo, Nigeria

“…Globally, elevation of activity concentrations of radionuclide and its radiological consequences from buildings as well as building materials from geological origin have been reported by many researchers, among are: Lu et al [ 10 ], Arabi et al [ 11 ], Ge and Zhang [ 12 ], and Isinkaye et al [ 13 ]. Recently, activity assessment and radiological risks associated with tiles made in Nigeria have been reported by Joel et al [ 14 ] and Joel et al [ 15 ]. Their results showed elevated concentrations of radionuclides in different tiles manufactured in Nigeria.…”

“…Eqs. (7) and (8) were used to estimate the AED Outdoor and AED Indoor respectively [ 14 , 29 , 31 , 32 , 37 ]. AED Outdoor (mSv y −1 ) = Dose rate (nGy h −1 ) × (365 × 24) × 0.2 × 0.7 (Sv Gy −1 ) × 10 −6 AED Indoor (mSv y −1 ) = Dose rate (nGy h −1 ) × (365 × 24) × 0.8 × 0.7 (Sv Gy −1 ) × 10 −6 …”

Radionuclides proportion and radiological risk assessment of soil samples collected in Covenant University, Ota, Ogun State Nigeria

“…The high-resolution Gamma spectroscopy spectrums are acquired after 10000 s count. The 226 Ra ( 238 U) and 232 Th are determined from their progenies ( 214 Pb & 214 Bi for 226 Ra and 212 Pb & 228 Ac for 232 Th) [ 11 , 12 ].…”

“…The external hazard index, Hex was calculated for the investigated samples using the model proposed by Raghu et al [ 25 ] and Joel et al [ 12 ] where the external hazard index is given by Eq. (5) …”

Gamma Background Radiations and Measurements with Applications

“…The tile samples were analyzed using high purity germanium gamma detector. The deliberate centralizations of these radioactive materials were related with different past outcomes got from comparable tile materials utilized in different nations and observed to be in great concurrence with the global standard, and be that as it may, the tiles are suggested for adornment purposes in Nigeria [42].…”