Studies on relaxation length of wood by method of gamma radiation

Akpabio, Louis E.; Etuk, Sunday Edet; Essiett, A. A.

doi:10.4314/njphy.v17i1.38001

Cited by 2 publications

(2 citation statements)

References 9 publications

(12 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The BIR measured at Okpoto and Nteze are in tendem with recommended value of 0.013mR/h. Akpabio et al [10] also studied "the environmental radioactive levels in Ikot-Ekpene and reported that the radioactivity levels in the area is generally low ranging". "High radiation levels and doses are detrimental to human health.…”

Section: Introductionmentioning

confidence: 99%

Radiological Assessment of Background Ionizing Radiation Exposure Rates from Solid Mineral Mining Sites in Ikwo Local Government Area of Ebonyi State, Nigeria

Mgbeokwere,

Ononugbo,

Gbarato

2023

AJARR

View full text Add to dashboard Cite

Human exposure to ionizing radiation from natural and artificial sources is an unending and unpreventable phenomenon on earth. The negative health impact of human activities in the environment has been an issue of discussion in contemporary times. A study to assess the radiological background ionizing radiation exposure dose rates from solid mineral mining sites in Ikwo Local Government Area of Ebonyi State was carried out. An in-situ measurement of BIR exposure rate in mRh-1 for 50 locations was done using a well calibrated Digilert -200 nuclear radiation meter (S.E international, INC.) at an elevation of 1.0 m above ground level with a geographical positioning system (GPS) for geographical location. The measured BIR exposure rates were utilized to assess the radiological health hazards and radiation effective doses to different body organs using well established radiological relations. To determine the radiological health status of the environment, the collected results were compared to recommended allowed limits. The mean values of BIR exposure levels (0.02 mRh-1 ), absorbed dose rates (185.39 ηGyh-1 ) and excess lifetime cancer risk (1.00 ×10-3) are higher than their recommended safe limits of 0.013 mRh-1 , 84.0 ηGyh-1 , 0.29×10-3respectively as recommended by ICRP and UNSCEAR. The mean annual effective dose equivalent (0.20 mSvy-1 ) is within recommended permissible limits of 1.00 mSvy-1 for general public exposure. Also, the effective doses to different body organs are all below the recommended limits of 1.0 mSvy-1 . Generally, the study shows that Ikwo solid minerals mining areas are radiologically contaminated due to land excavation and mining activities taking place. However, the contamination has no immediate radiological health effects on the residents of the area, but there is the possibility of long-term health concerns in the future, such as cancer, due to accumulated doses.

show abstract

Section: Introductionmentioning

confidence: 99%

Radiological Assessment of Background Ionizing Radiation Exposure Rates from Solid Mineral Mining Sites in Ikwo Local Government Area of Ebonyi State, Nigeria

Mgbeokwere,

Ononugbo,

Gbarato

2023

AJARR

View full text Add to dashboard Cite

show abstract

“…For the instance, it is key input for estimating potential evapotranspiration which play a major role in the design of water supply storage reservoirs and irrigation systems. Inspite of the importance of global solar radiation data, its measurements is not frequently available especially in the developing countries like Nepal 6 .…”

Section: Introductionmentioning

confidence: 99%