Natural radioactivity levels of 238U, 232Th and 40K and radiological risk assessment in paddy soil of Ezillo rice fields in Ebonyi State, Nigeria

Ugbede, Fredrick Oghenebrorie; Osahon, Okhuomaruyi David; Akpolile, Anita Franklin

doi:10.1080/15275922.2021.1892881

Cited by 22 publications

(9 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The obtained mean ACs of 40 K, 232 Th and 226 Ra in the soils were below global average values of 420, 45 and 32 Bq/kg, respectively, reported by the United Nations Scientific Committee on the Effect of Atomic Radiation (UNSCEAR) [ 1 ]. The mean ACs being reported in this study are in tandem with earlier studies on farm soil from other parts of Nigeria [ 3 , [29] , [30] , [31] , [32] , [33] ]. However, the ACs of 40 K, 226 Ra and 232 Th measured in soils of Ropp, Bitsichi, Bukuru and Abeokuta [ 8 , [34] , [35] , [36] ] were about a factor of two higher than what is being reported in this current study.…”

Section: Resultssupporting

confidence: 87%

“…Ajayi [ 22 ] noted that the content of 40 K in soil of western Nigeria is due to the occurrence of feldspars of potassium found in the region. 40 K is ubiquitous in the earth crust, the content of it in farm soil may also, in part, be ascribed to fertilizers as well as manure residues that may have accumulated in the soil following decades of farming activities [ 24 , 32 ]. This claim collaborates with earlier observation made by Isinkaye [ 42 ] in mechanized farms located in Ekiti state where higher 40 K AC than other radionuclides was reported, which was attributed to incessant intense application of NPK 15:15:15, a potassium-based fertilizer formulation.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Gamma spectroscopy study of soil-plant transfer factor characteristics of 40K, 232Th and 226Ra in some crops cultivated in southwestern region of Nigeria

Oladele,

Ugbede,

Arogunjo

et al. 2023

Heliyon

Self Cite

View full text Add to dashboard Cite

Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Gamma spectroscopy study of soil-plant transfer factor characteristics of 40K, 232Th and 226Ra in some crops cultivated in southwestern region of Nigeria

Oladele,

Ugbede,

Arogunjo

et al. 2023

Heliyon

Self Cite

View full text Add to dashboard Cite

“…When the results obtained were compared with recommended limit (RL), it was observed that more doses are ingested from the consumption of Catfish compared to Tilapia and the values of the effective doses increase in the order of adult < 15 years < 10 years < 5 years < fishermen. Nevertheless, each and every one of these values were quite low compared to the mean world value of 1000 µSvy −1 and hence pose no serious radiation hazard [22,[27][28][29][30][31], but it is recommended that Tilapia should be consumed instead of Catfish in cases of long-term radiation injury.…”

Section: Annual Effective Dose (Aed)mentioning

confidence: 99%

Assessment of Radionuclide Concentrations in Catfish and Tilapia fish from Asa-Dam Ilorin, North-central Nigeria

et al. 2023

View full text Add to dashboard Cite

High concentration of naturally occurring radionuclides in food can have adverse effect on human health. Radioactivity measurement of radionuclides in Catfish and Tilapia fish samples from Asa-Dam Ilorin, Nigeria was carried out using gamma ray spectrometer technique. The results of the gamma ray spectrometry were utilized in the estimation of some radiological parameters in the bid to effectively determine the extent of the health implications as regards to radiation from the consumption of fishes in that area. The mean activity concentrations of 40K, 238U and 232Th for Catfish are 37.90±2.83, 8.08±2.71 and 11.73±2.51 Bqkg-1, respectively. Similarly, the mean activity concentrations of 40K, 238U and 232Th for Tilapia are 26.31±3.67, 6.16±2.47 and 8.89±2.19 Bqkg-1, respectively. The mean values of 40K, 232Th and 238U in Catfish were observed to be high when compared to Tilapia. The average absorbed dose rate for both Catfish and Tilapia samples were 12.40 and 9.31 nGyh-1. The mean annual effective doses were 29.65, 276.81, 52.04, 41.10 and 35.00 μSvy-1; 22.41, 209.10, 38.99, 30.93 and 26.43 μSvy-1 for adult, fishermen, 5 years, 10 years and 15 years, respectively for cat and Tilapia fish. The estimated excess lifetime cancer risk for adult, fishermen, 5 years, 10 years and 15 years were 0.10, 0.97, 0.18, 0.14, and 0.12 and 0.09, 0.85, 0.16, 0.13 and 0.11 for both Catfish and Tilapia, respectively. The results of all the radiological parameters estimated showed trends that are generally low, hence, poses no significant radiological health burden.

show abstract

“…The main natural radioactive isotopes 238 U, and 232 Th, and their decay products, and 40 K produce significant outdoor exposure [4,5]. Natural radionuclides naturally expose humans to radiation.…”

Section: Introductionmentioning

confidence: 99%

“…Natural radionuclides naturally expose humans to radiation. However, agricultural practices such as fertilization processes and agrochemical inputs applied to increase productivity contribute to the increase in the radioactivity content of the soil [4]. In addition, radionuclides in phosphate rocks can increase radioactivity due to phosphogypsum used in building construction [6].…”

Section: Introductionmentioning

confidence: 99%

Natural and Artificial Radioactivity Concentrations and Health Risks due to Radionuclides in the Soil of Nevşehir (Cappadocia)

Özden,

Pehli̇vanoğlu

2023

International Journal on Applied Physics and Engineering

View full text Add to dashboard Cite

Natural and artificial radionuclides in the surface soil samples collected from the Nevşehir (Cappadocia) region were analyzed using gamma spectrometry employing an HPGe detector. Activity concentrations of 226Ra, 232Th, and 40K range from 58.31 to 77.40 Bq kg−1, 60.56 to 90.97 Bq kg-1, and 796.42 to 1142.8 Bq kg-1, respectively. The values indicate that the activity concentrations of the natural radionuclides in the soil samples were higher than the world average. Since Turkey is a country greatly affected by the Chernobyl accident, 137Cs activity concentration was measured to determine whether its effect continues. The activity concentration of 137Cs ranges from Minimum Detectable Activity (MDA) to 6.88 Bq kg−1. In addition, the radium equivalent activity, the absorbed dose rate, the annual effective dose equivalent, and the excess lifetime cancer risk parameters were calculated to determine the radiological effect of natural and artificial radionuclides on the population in the study area. All values except the radium equivalent activity were found to be above the world average.

show abstract

Natural radioactivity levels of ²³⁸U, ²³²Th and ⁴⁰K and radiological risk assessment in paddy soil of Ezillo rice fields in Ebonyi State, Nigeria

Cited by 22 publications

References 37 publications

Gamma spectroscopy study of soil-plant transfer factor characteristics of 40K, 232Th and 226Ra in some crops cultivated in southwestern region of Nigeria

Gamma spectroscopy study of soil-plant transfer factor characteristics of 40K, 232Th and 226Ra in some crops cultivated in southwestern region of Nigeria

Assessment of Radionuclide Concentrations in Catfish and Tilapia fish from Asa-Dam Ilorin, North-central Nigeria

Natural and Artificial Radioactivity Concentrations and Health Risks due to Radionuclides in the Soil of Nevşehir (Cappadocia)

Contact Info

Product

Resources

About