Spatial distribution of radionuclides in agricultural soil in the vicinity of a coal-fired brick kiln

Abedin, Md. Jainal; Karim, Md. Rezaul; Hossain, Shahadat; Deb, Nipa; Kamal, Masud; Miah, Md. Hazrat Ali; Khandaker, Mayeen Uddin

doi:10.1007/s12517-019-4355-7

Cited by 26 publications

(10 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Considering the leaves’ texture and density, a radioactive standard with leafy vegetables was prepared by mixing/spiking 226 Ra standard source of solid matrices in identical containers to the samples, and using them accordingly. Necessary information on the calibration of the efficiency of the detector is available elsewhere [ 41 ]. In this study, each sample was measured for 10,000 seconds to achieve reasonable statistics.…”

Section: Methodsmentioning

confidence: 99%

“…Activity concentrations of radionuclides (Bq kg −1 ) in surface soil, sub-surface soils and plant samples were calculated using Equation (1) [ 41 ]:

where CPS represents the net counts per second, ε f the efficiency of the detector, Iγ the branching ratio and W s the weight of the sample in kg. The statistical uncertainties were expressed in terms of standard deviation (±σ), where σ is expressed in Equation (2) [ 41 ]:

where N s and N b represent the sample and background counts in time T s and T b , respectively. The total uncertainty for each measured sample was calculated taking into account the statistical and other components of uncertainty.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Radionuclides Transfer from Soil to Tea Leaves and Estimation of Committed Effective Dose to the Bangladesh Populace

Absar

Abedin

Rahman

et al. 2021

Life

Self Cite

View full text Add to dashboard Cite

Considering the probable health risks due to radioactivity input via drinking tea, the concentrations of 226Ra, 232Th,40K and 137Cs radionuclides in the soil and the corresponding tea leaves of a large tea plantation were measured using high purity germanium (HPGe) γ-ray spectrometry. Different layers of soil and fresh tea leaf samples were collected from the Udalia Tea Estate (UTE) in the Fatickchari area of Chittagong, Bangladesh. The mean concentrations (in Bq/kg) of radionuclides in the studied soil samples were found to be 34 ± 9 to 45 ± 3 for 226Ra, 50 ± 13 to 63 ± 5 for 232Th, 245 ± 30 to 635 ± 35 for 40K and 3 ± 1 to 10 ± 1 for 137Cs, while the respective values in the corresponding tea leaf samples were 3.6 ± 0.7 to 5.7 ± 1.0, 2.4 ± 0.5 to 5.8 ± 0.9, 132 ± 25 to 258 ± 29 and <0.4. The mean transfer factors for 226Ra, 232Th and 40K from soil to tea leaves were calculated to be 0.12, 0.08 and 0.46, respectively, the complete range being 1.1 × 10−2 to 1.0, in accordance with IAEA values. Additionally, the most popularly consumed tea brands available in the Bangladeshi market were also analyzed and, with the exception of 40K, were found to have similar concentrations to the fresh tea leaves collected from the UTE. The committed effective dose via the consumption of tea was estimated to be low in comparison with the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) reference ingestion dose limit of 290 μSv/y. Current indicative tea consumption of 4 g/day/person shows an insignificant radiological risk to public health, while cumulative dietary exposures may not be entirely negligible, because the UNSCEAR reference dose limit is derived from total dietary exposures. This study suggests a periodic monitoring of radiation levels in tea leaves in seeking to ensure the safety of human health.

show abstract

Section: Methodsmentioning

confidence: 99%

“…Activity concentrations of radionuclides (Bq kg −1 ) in surface soil, sub-surface soils and plant samples were calculated using Equation (1) [ 41 ]:

Section: Methodsmentioning

confidence: 99%

Radionuclides Transfer from Soil to Tea Leaves and Estimation of Committed Effective Dose to the Bangladesh Populace

Absar

Abedin

Rahman

et al. 2021

Life

Self Cite

View full text Add to dashboard Cite

show abstract

“…More particularly, the sample code BHS1A recorded the highest activity concentrations of 226 Ra and 232 Th with values of 12.4 ± 0.7 Bq.kg À1 and 8.8 ± 0.6 Bq.kg À1 respectively, while the sample BHS3B recorded the highest activity concentrations of 40 K with a value of 342 ± 16. However, all of the samples show values lower than the world average values of 35 Bq.kg À1 , 30 Bq.kg À1 and 420 Bq.kg À1 for 226 Ra,232 Th and 40 K respectively as reported by (UNSCEAR, 2000;Abedin et al, 2019).…”

Section: Estimation Of Uncertaintiesmentioning

confidence: 63%

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

et al. 2019

View full text Add to dashboard Cite

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.

show abstract

“…These radioactive elements naturally make their way into the soil, surface water, and groundwater through different earth surface processes [2,6]. Their concentrations increase above normal levels in association with anthropogenic activities, such as the testing of nuclear weapons [2], mining, the production of industrial minerals and materials [7][8][9][10][11], fossil fuel production and combustion [12][13][14], and the use of phosphate and potassium sulfate fertilizers [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Distributions and Risk Assessment of the Natural Radionuclides in the Soil of Shoubra El Kheima, South Nile Delta, Egypt

et al. 2022

View full text Add to dashboard Cite

Due to heightening concern about radiation hazards protection, activity concentrations of 226Ra, 232Th, 40K in forty soil samples collected from Shoubra El Kheima in the South Nile Delta were measured using gamma-ray spectrometry. The mean activity concentrations of 226Ra and 40K were higher in 20% of the considered samples than the world average values. A comprehensive comparison with up-to-date data was carried out. Spatial distribution maps of the measured radionuclides and radiological parameters were generated. The distributions of natural radionuclides were influenced by the soil organic matter, clay content, and scavenger metals oxides, as well as differences in the physical and chemical attributes and solubility of these radionuclides. The results revealed that industrial activity and agricultural practices in the study area caused an incremental increase in 226Ra and 40K activity concentrations. It can be deduced that although there are intensive industrial activities in this area, the natural radiation that comes from the soil is normal and does not pose a significant radiological hazard to the public. The natural radioactivity of soil in this area needs to be monitored periodically to prevent unnecessary radiation exposure to inhabitants.

show abstract

Spatial distribution of radionuclides in agricultural soil in the vicinity of a coal-fired brick kiln

Cited by 26 publications

References 33 publications

Radionuclides Transfer from Soil to Tea Leaves and Estimation of Committed Effective Dose to the Bangladesh Populace

Radionuclides Transfer from Soil to Tea Leaves and Estimation of Committed Effective Dose to the Bangladesh Populace

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

Distributions and Risk Assessment of the Natural Radionuclides in the Soil of Shoubra El Kheima, South Nile Delta, Egypt

Contact Info

Product

Resources

About