Evaluation of radionuclides transfer from soil-to-edible flora and estimation of radiological dose to the Malaysian populace

Khandaker, Mayeen Uddin; Nasir, Noor Liyana Mohd; Asaduzzaman, Khandoker; Olatunji, Michael Adekunle; Amin, Yusoff Mohd; Kassim, Hasan Abu; Bradley, D.A.; Jojo, P.J.; Alrefae, Tareq

doi:10.1016/j.chemosphere.2016.03.121

Cited by 76 publications

(11 citation statements)

References 31 publications

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“…18 The fitted efficiencies obtained were used in activity determination of samples, following the procedure of Khandaker et al. 19–21 The gamma-ray lines of 351.93 keV (35.6%) from 214 Pb and 609.32 keV (45.49%) from 214 Bi were used to determine the activity concentrations of 226 Ra; the gamma-ray lines of 238.632 keV (43.6%) from 212 Pb and 583.19 keV (85.0%) from 208 Tl were used to determine the activity concentrations of 232 Th following the weighted mean approach. 22 The single gamma-ray line of 1460.822 keV (10.66%) was used to determine the activity concentrations of 40 K.…”

Section: Methodsmentioning

confidence: 99%

Ionizing radiation shielding effectiveness of decorative building materials (porcelain and ceramic tiles) used in Bangladeshi dwellings

Yasmin

Khandaker

Barua

et al. 2018

Indoor and Built Environment

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Section: Methodsmentioning

confidence: 99%

Ionizing radiation shielding effectiveness of decorative building materials (porcelain and ceramic tiles) used in Bangladeshi dwellings

Yasmin

Khandaker

Barua

et al. 2018

Indoor and Built Environment

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“…The total standard uncertainty of the estimate y is denoted by u c (y) and is obtained by using the error propagation law (Khandaker et al, 2016) given in equation (3):…”

Section: Estimation Of Uncertaintiesmentioning

confidence: 99%

Assessment of natural radioactivity levels in stony sand from Black Stone Beach of Kuantan, the Peninsular Malaysia

et al. 2019

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Black Stone Beach (or Pantai Batu Hitam) of Kuantan, Malaysia is a windy but unique beach located on the coastal strip, and has become an attraction for tourists from within and outside the country for many years due to its scenic dark rock formations. Considering the radiological safety of human health, a study was conducted to assess the concentrations of naturally occurring radioactive materials in the beach environment. Activity concentrations of primordial radionuclides 226Ra, 232Th, and 40K in the stony sand samples collected from the beach area were assessed by using HPGe γ-ray spectrometry. The measured external gamma radiation dose rates and the activity concentrations were found to ranges 22–31 nGy.h−1 and 9.8 ± 0.6 to 12.4 ± 0.7 Bq.kg−1, 6.8 ± 0.5 to 8.8 ± 0.6 Bq.kg−1 and 209 ± 11 to 354 ± 17 Bq.kg−1 for 226Ra, 232Th and 40K, respectively. The mean values of typical radiological indices such as radium equivalent activity (Raeq) and annual effective dose were found to be 17.82 Bq.kg−1 and 10.86 × 10−3 mSv.year−1 which were far below the world average values of 370 Bq.kg−1 and 2.4 mSv.year−1 set by the UNSCEAR, respectively. Present results served as an important reference for any future radiological study in Kuantan, Malaysia.

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“…Both the fish feed ingredients and fish samples were placed symmetrically on top of the detector and measured for a period of 10 h. The net area under the corresponding peaks in the spectrum was determined by subtracting counts due to Compton scattering of higher peak and other background sources from the total area of the peak. From the net area of a certain peak, the activity concentrations in the sample were obtained using Equation 1 (Khandaker et al, 2016):…”

Section: Radioactivity Measurementmentioning

confidence: 99%

Radiological risks assessment of 238U, 232Th and 40K in fish feeds and catfish samples from selected fish farms in Ado – Ekiti, Nigeria

Fasae

Isinkaye

2018

Journal of Radiation Research and Applied Sciences

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Fish is one of the major sources of protein in the diet of the vast majority of people living in Ekiti State and Nigeria in general. This study was carried out to ascertain the possibilities of radionuclides pollution due to catfish consumption in the study area. The activity concentrations of radionuclides were determined in catfish and fish feeds using gamma spectrometry method. Committed effective doses were inferred for adults and children of age 10 from the activity concentrations of 40 K, 238 U and 232 Th in catfish. The results show that the annual committed effective doses for adults and children were all lower than the recommended 1.0 mSv y À1 limit for memebers of the public. This shows that the radiation dose incurred from the ingestion of the fresh catfish samples pose no significant health risks to the population from a radiological point of view.

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Evaluation of radionuclides transfer from soil-to-edible flora and estimation of radiological dose to the Malaysian populace

Cited by 76 publications

References 31 publications

Ionizing radiation shielding effectiveness of decorative building materials (porcelain and ceramic tiles) used in Bangladeshi dwellings

Ionizing radiation shielding effectiveness of decorative building materials (porcelain and ceramic tiles) used in Bangladeshi dwellings

Assessment of natural radioactivity levels in stony sand from Black Stone Beach of Kuantan, the Peninsular Malaysia

Radiological risks assessment of 238U, 232Th and 40K in fish feeds and catfish samples from selected fish farms in Ado – Ekiti, Nigeria

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