Radioactivity distribution and transfer factor (TF) in plants are crucial parameters used to assess radioactive contamination the environment, impact of soil radioactivity on agricultural crops its risks humans. The root crop cassava (Manihot esculenta) provides about 50 percent calories consumed Nigeria. Gamma - ray spectroscopy was measure activity concentrations 226Ra, 232Th 40K soil. average concentration 40K, 226Ra 565.31± 13.17, 21.89±5.94 817.28±2.52 Bqkg-1 respectively. mean range...

Water samples from boreholes collected 29 locations in two local government areas Port Harcourt, Rivers State, Nigeria have been analysed for their natural radioactivity content using a well-calibrated, shielded and highly efficient NaI(Tl) detector based gamma ray with view to provide baseline data on the level area, as well an estimate of resulting dose inhabitants. The radionuclides observed reliable regularity belonged decay series chain headed by (238)U (232)Th non-series (40)K. mean...

The activity concentrations and the gamma-absorbed dose rates of terrestrial naturally occurring radio nuclides viz. 226Ra, 232Th 40K were determined in soil samples collected from twelve oil fields their host communities, using gamma ray spectrometry. ranges 10.10 to 41.23 Bq/kg for 7.42 30.31 92.42 482.79 with mean values 19.16, 21.26 224.29 Bq/kg, respectively community soil. In field sample, concentration 16.27 52.19 9.72 34.13 134.50 395.15 29.61, 17.41 262.63 respectively. these...

A study of the external background ionizing radiation (BIR) levels in eight solid mineral mining sites Enugu State has been carried out using two Digilert monitors Radalart-50 and Radalart-100.Thirty readings four sampling each point were taken at different state following standard procedure.The measured BIR obtained ranged from 0.012 mR/hr Nkpologwu silica site to 0.028 clay Enugu-Ekulu with an average 0.018 ± 0.004 mR/hr, while corresponding calculated equivalent dose rate 1.0 mSv/yr 2.35...

This article presents important facts on food safety in milk consumed Nigeria that are agreement with NAFDAC plan regarding the of Nigeria. The radioactivity con-centrations powdered and liquid were investigated using a sodium iodide (NaI(Tl)) detector. activity concentrations three naturally occurring radionuclides, 226Ra, 232Th, 40K, measured 10 brands 11 milk. results show mean concentration 40K powder samples was 468.0 ± 72.7 Bq kg−1and 317.6 58.5 kg−1, respectively. values for 226Ra...

A key component of the current national energy policy Nigeria is to efficiently utilize her abundant natural gas reserves, especially in sector. This paper reports a study terrestrial radioactivity industrial areas Ogba/Egbema/Ndoni Local Government Area (ONELGA) Rivers State. These and their host communities were divided into six (6) zones, each having an oil facility. An in-situ measurement was done using two well calibrated nuclear radiation meters (digilert–100 digilert–50) geographical...

Over the years, release of potential radiological components around oil exploration environment has increased with health implications.Yet; mechanism and associated assessment have remained fuzzy to most experimental scientists. The current study determines activity concentration radionuclides in sediments corresponding risk assessments from hydrocarbon southern coastal area Delta State, Nigeria. A Sodium-iodide NaI(Tl) detector, a well-calibrated multichannel analyzer (MCA) ensure...

The measurements of environmental sound quality some selected flow stations in the Niger-Delta area Nigeria were carried out to obtain noise distribution pattern stations. An situ approach was adopted using direct reading calibrated digital level meters. results show an average 81.72 dB(A) and 84.74dB(A) for East West respectively. are slightly below FEPA recommended permissible limit maximum 8 hours, but day night continuity could therefore classify as hazardous environmentally unfriendly...