Radiation Emission Characterization of Waste Dumpsites in the City of Ibadan in Oyo State of Nigeria

Odunaike, R. K.; Laoye, J.A.; Alausa, Shamsideen Kunle; Ijeoma, G. C.; Adelaja, A

doi:10.3923/rjet.2008.100.103

Cited by 8 publications

(4 citation statements)

References 6 publications

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“…These radionuclides even at low concentrations can have potential impacts on the environmental quality and human health and may pose a long term risk. Various studies have been carried out in recent years in Nigeria and elsewhere to investigate radioactivity in dumpsite (Odunaike, Laoye, Alausa, Ijeoma, & Adelaja, 2008;Ogundare and Alabi, 2008;Okoronkwo, Odemelam, & Ano, 2006;Oladapo, Oni, Olawoyin, Akande, & Tijani, 2012). Radioactivity measurements have also shown the existence of traces of radionuclide in the staple foods consumed in Nigeria.…”

Section: Introductionmentioning

confidence: 97%

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

Ademola

Olaoye

Abodunrin

2015

Journal of Radiation Research and Applied Sciences

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RadioactivityHeavy metals a b s t r a c t Assessment of naturally occurring radionuclides and heavy metals in 5 major dumpsites around Lagos and Ogun State, Nigeria, was carried-out to determine the natural radionuclide and heavy metals in the dumpsites and to evaluate the hazards these may have on the public. Radionuclide concentrations were determined using gamma-ray spectrometry with NaI (Tl) detector. The mean activity concentrations of 226 Ra, 232 Th and 40 K in the soil samples were 23.840.9 ± 42.0 in Ogijo, respectively. The results of 226 Ra and 232 Th are lower than the world average but higher for 40 K (UNSCEAR, 2000). The analysis of the heavy metal concentrations indicated that there is presence of Cadmium, Zinc and Copper in high proportion. These metals are toxic and may cause severe problem with prolonged exposure. Monitoring the accumulation of these metals in soil samples is very important and the practice of cultivating the land for planting vegetables and legumes by farmers around the dumpsites must be discouraged to prevent the transportation of these toxic metals into human system.

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Section: Introductionmentioning

confidence: 97%

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

Ademola

Olaoye

Abodunrin

2015

Journal of Radiation Research and Applied Sciences

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“…A radiation emission characterization of waste dumpsites was carried out in the city of Ibadan in Oyo State, Nigeria. The results of the investigation revealed that the mean annual dose rate from the waste dumpsite in the city is 26.2 µSv/yr, which is far lower than the average of 70 µSv/yr put forward by the United Nations Scientific Committee on Effect of Atomic Radiation (UNSCEAR) which points to the fact that there is no serious health hazard due to the exposure level of the emitted radiation on the entire populace of the city of Ibadan [8].…”

Section: Introductionmentioning

confidence: 71%

Measurement of Gamma Radiation in Automobile Mechanic Workshops in an Area of Benin City, Nigeria

Nworgu

Osahon

Obinyan

2011

AMR

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Environmental radiation measurement was carried out in several automobile mechanic workshops within Ugbowo area of Benin-City, Edo State, Nigeria. A Digilert 50 Nuclear Radiation monitor was used to ascertain the level of radiation to which these workers are daily exposed. The study revealed that the average annual effective dose rate from these sites is approximately 0.40 mSv/yr which is lower than the value of 1.0 mSv/yr averaged over five consecutive years according to the dose limit placed by the Basic Safety Standards (BSS) SCHEDULE II and the International Commission on Radiological Protection (ICRP) REPORT 60. However, the external background ionizing radiation exposure within the sites investigated varied between 0.1272 and 0.01411 mR/hr with an average of 0.01314 ± 0.000658 mR/hr in the locality which is relatively higher than the standard background radiation of 0.011 mR/hr recommended by the US Nuclear Radiation Commission. This level of background radiation seems to suggest that there is a possibility of the existence of radio nuclides within the area.

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“…Radionuclides contents of soil samples collected from various waste dumpsites have been studied by many researchers in Nigeria (Ademola, Babalola, Alabi, Onuh, & Enyenihi, 2014;Avwiri & Olatubosun, 2014;Emelue, Eke, Oghome, & Ejiogu, 2013;Faweya & Babalola, 2010;Isinkaye & Faweya, 2006;Odunaike, Laoye, Alausa, Ijeoma, & Adelaja, 2008;Oladapo, Oni, Olawoyin, Akerele, & Tijani, 2012). Their results indicated that the activity concentrations of 40 K, 226 Ra and 232 Th in dumpsites show no significant radiological health hazards to the population around the dumpsites.…”

Section: Introductionmentioning

confidence: 96%

Assessment of radiation exposure levels at Alaba e-waste dumpsite in comparison with municipal waste dumpsites in southwest Nigeria

Jibiri

Isinkaye

Momoh

2014

Journal of Radiation Research and Applied Sciences

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a b s t r a c tRadiation exposures at the e-waste dumpsite around Alaba International Market, Lagos and three municipal waste dumpsites located in Ibadan and Ado Ekiti, southwest Nigeria were assessed by gamma ray spectroscopy using a highly shielded Canberra NaI (Tl) detector. Soil samples were collected for analysis at the municipal waste dumpsites for comparison with e-waste dumpsite. Samples were also collected at a location free from waste dumps to serve as control. The mean concentrations of 40 K, 226 Ra, and 232 Th obtained at the e-waste dumpsite were lower than those obtained at the municipal waste dumpsites and the controls site. The values obtained at the e-waste dumpsite were also lower than the world average values of 412 Bq/kg, 35 Bq/kg and 30 Bq/kg for 40 K, 226 Ra, and 232 Th, respectively as reported by UNSCEAR. The mean annual effective dose rate obtained for the soil samples from e-waste dumpsite, Oritaperin, Ring-road and Ilokun dumpsites were respectively 0.026 mSv, 0.074 mSv, 0.080 mSv and 0.093 mSv/yr. The mean absorbed dose rate at the e-waste dumpsite was 21.12nGy/h which is lower than the world average of 60nGy/h. Values for other hazard indices were below the world average and lower than their respective minimum permissible limits. Hence, e-waste and municipal waste does not pose any immediate radiological risk to the people working/living in the vicinity of the dumpsites.

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Radiation Emission Characterization of Waste Dumpsites in the City of Ibadan in Oyo State of Nigeria

Cited by 8 publications

References 6 publications

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

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

Measurement of Gamma Radiation in Automobile Mechanic Workshops in an Area of Benin City, Nigeria

Assessment of radiation exposure levels at Alaba e-waste dumpsite in comparison with municipal waste dumpsites in southwest Nigeria

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