Radiological safety assessment and determination of heavy metals in soil samples from some waste dumpsites in Lagos and Ogun state, south-western, Nigeria

Ademola, Augustine Kolapo; Olaoye, M A; Abodunrin, Peter O

doi:10.1016/j.jrras.2014.12.010

Cited by 27 publications

(16 citation statements)

References 8 publications

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“…2). Similar observation has been reported by (Ademola et al, 2015). Higher activity concentrations of the radionuclides were obtained in the top soil samples from Idowale dumpsites (Fig.…”

Section: Resultssupporting

confidence: 90%

“…Human activities create wastes and the way these are handled, stored, collected and disposed can give rise to impacts on the environment and public health (Ademola et al, 2015). Hazardous waste can cause pollution, damage to health and even death.…”

Section: Introductionmentioning

confidence: 99%

“…The radioactive contamination of soil, water and air can be transferred to humans through the soil via plants ( 40 K) or through inhalation ( 222 Rn and 220 Rn). These radionuclides even at low concentrations can have potential impacts on the environmental quality and human health and may pose a long term risk (Ademola et al, 2015). Moreover, risk assessment which is an effective scientific tool will enable decision makers to manage sites so contaminated in a cost-effective manner while preserving public and ecosystem health (Zhao and Kaluarachchi, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Radiometric evaluation of excessive lifetime cancer probability due to naturally occurring radionuclides in wastes dumpsites soils in Agbara, Southwest, Nigeria

Gbadamosi

Banjoko

Abudu

et al. 2017

Journal of the Association of Arab Universities for Basic and A

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The concentration and spatial distribution of the gamma ray emitting 238 U, 232 Th, 40 K and 137 Cs radionuclides in dumpsite soils in Agbara were analyzed with the aim of evaluating the radiation hazards and excessive lifetime cancer risk using well calibrated HPGe c-ray spectrometry technique. The ranges of activity concentrations of 238 U, 232 Th, 40 K and 137 Cs are 11.5 ± 1.0 M 166 ± 40 Bq kg À1 , 15.6 ± 1.8 M 31.4 ± 2.3 Bq kg À1 , 20.4 ± 1.3 M 366 ± 30 Bq kg À1 and 0.52 ± 0.1 M 8.44 ± 0.2 Bq kg À1 respectively. Radiological parameters such as absorbed dose rate, radium equivalent, annual effective dose equivalent, internal and external hazard indices, gamma level index, activity utilization index, annual genetic significant dose equivalent, exposure rate and excessive lifetime cancer risk were calculated to know the complete radiological hazardous nature of the dumpsite soils to the inhabitants of the sites. The calculated radiological parameters were higher than the world average value in two of the sampling points. The ratio of the detected radioisotopes was calculated for spatial distribution of natural radionuclides in the study area. RESRAD computer code was applied to calculate the total effective dose equivalent (TEDE). The code was also used to calculate the probability of excess lifetime cancer incurred by dwellers/inhabitants of the dumpsites, the level of which was determined to be 0.5 Â 10 À4 and 2.5 Â 10 À5 for Idowale and Ibijola dumpsite soils over a period of 30 years respectively. Therefore, the radiological risks to the general populations from waste enhanced naturally occurring radioactive materials (WENORM) from the Idowale dumpsite top soils are considered to be significant.

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“…2). Similar observation has been reported by (Ademola et al, 2015). Higher activity concentrations of the radionuclides were obtained in the top soil samples from Idowale dumpsites (Fig.…”

Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Radiometric evaluation of excessive lifetime cancer probability due to naturally occurring radionuclides in wastes dumpsites soils in Agbara, Southwest, Nigeria

Gbadamosi

Banjoko

Abudu

et al. 2017

Journal of the Association of Arab Universities for Basic and A

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“…Soil is one of the major recipients of these waste products and the main reservoir of these naturally occurring radionuclides. They are transferred to humans through a number of pathways such as ingestion, dermal contact and inhalation of radon gas [9]. Radionuclides may pose a long-term risk even in very low concentrations.…”

Section: Introductionmentioning

confidence: 99%

Health Risk Assessment of Natural Radioactivity in Wasteland Soils in Okakarara, Namibia..

Onjefu

Kamunda

Abah

2021

Arab Journal of Nuclear Sciences and Applications

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Human activities such as waste disposal tend to impact negatively on the environment. Some waste products are associated with elevated levels of natural radioactivity. It was therefore, the aim of the study to investigate the health risk associated with natural radioactivity from Okakarara municipal waste dumpsite. In this study, gamma spectrometric analysis was used to determine the activity concentrations of 226 Ra, 232 Th and 40 K in 18 soil samples. From these activity concentrations, some radiological parameters were calculated. The average activity concentrations of 226 Ra, 232 Th and 40 K in (Bq.kg -1 ) were 15.45±0.47, 18.00±0.55, and 215.73±4.29, respectively. The average Raeq value was 57.80±0.98 Bq.kg -1 . In all the samples, Raeq values were found to be lower than the worldwide value of 370 Bq.kg -1 . The absorbed dose rate was found to be 27.00±0.44 nGy.h -1 , whereas an average value of 0.03 mSv.y -1 for AEDE was noted, which is less than 0.48 mSv, the worldwide average. The Annual Gonadal Dose Equivalent (AGDE) was 190.89 μSv.y -1 , a value less than the world average of 298 μSv.y -1 . The average values of the Representative Level Index (RLI) and the External Hazard Index (Hex) was found to be 0.43 and 0.16., respectively. These indices were less than unity. The average value of the excess lifetime cancer risk (ECLR) was 1.16 x 10 -4 ?? units . This value was lower than the internationally acceptable limit of 2.9 x 10 -4?? . From these results it can be concluded that natural radioactivity from the wasteland area of Okakarara was not an issue of health concern.

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“…The site specific safety analysis identified important tasks for research and development which would have not been possible by a generic safety analysis. Ademola et al, (2015) carried out assessment of naturally occurring radionuclides and heavy metals in 5 major dumpsites around Lagos and Ogun State, Nigeria and to evaluate the hazards these may have on the public. The results of this study showed 226 Ra and 232 Th were lower than the world average but higher for 40 K and the analysis of heavy metal concentrations indicated that there is presence of Cadmium, Zinc and Copper in high proportion.…”

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confidence: 99%

Radioactive Wastes

Choudri

Baawain

2016

Water Environment Research

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Papers reviewed herein present a general overview of radioactive waste activities around the world in 2015. These include safety assessments, decommission and decontamination of nuclear facilities, fusion facilities, transportation and management solutions for the final disposal of low and high level radioactive wastes (LLW and HLW), interim storage and final disposal options for spent fuel (SF), and tritiated wastes, with a focus on environmental impacts due to the mobility of radionuclides in water, soil and ecosystem alongwith other progress made in the management of radioactive wastes.

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Radiological safety assessment and determination of heavy metals in soil samples from some waste dumpsites in Lagos and Ogun state, south-western, Nigeria

Cited by 27 publications

References 8 publications

Radiometric evaluation of excessive lifetime cancer probability due to naturally occurring radionuclides in wastes dumpsites soils in Agbara, Southwest, Nigeria

Radiometric evaluation of excessive lifetime cancer probability due to naturally occurring radionuclides in wastes dumpsites soils in Agbara, Southwest, Nigeria

Health Risk Assessment of Natural Radioactivity in Wasteland Soils in Okakarara, Namibia..

Radioactive Wastes

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