Estimation of thorium intake due to consumption of vegetables by inhabitants of high background radiation area by INAA

Sathyapriya, R. S.; Nair, Suma; Kamesh, V.; Prabhath, R. K.; Nair, Madhu G.; Acharya, R.; Rao, D. D. Bhaktavatsala

doi:10.1007/s10967-012-1647-8

Cited by 8 publications

(4 citation statements)

References 7 publications

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“…Gasping and severe irritation to the nasal passages were reported after 10-minute exposures at 637 mg U/mg 3 in rats and mice (Spiegl 1949) and nasal hemorrhage in rats after a 5minute exposure to 54,503 mg/m 3 (Leach et al 1984). The average concentration value for Th is 0.423 ± 0.06 mg/kg in this current study agrees with Sathyapriya et al (2011), as well as the values reported from Cochin, a coastal town in southern India where the natural background levels are low (Sathyapriya et al, 2010). Thorium is a naturally occurring radioactive metal found at trace levels in soil, rocks, water, plants and animals (EPA, 2023).…”

Section: Resultssupporting

confidence: 91%

Uranium and Thorium contaminations of Baobab leave powder consumed in selected locations of Katsina State, North West Nigeria

Joseph,

Lawal,

Ubaidullah

et al. 2024

jobasr

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The need to know the level of contamination of radioactive elements, especially uranium and thorium, in the common foods we eat particularly the Baobab leave powder is highly significant due to their detrimental health effects. The presence of uranium and thorium in significant concentrations also presents an exposure risk to populations. In this study, six (6) baobab samples were collected from Daura, Funtua, Dustin-Ma, Kankia, Katsina, and Malumfashi in Katsina State. The samples were analysed for uranium and thorium content using Instrumental Neutron Activation Analysis (INAA). Concentration level of uranium was detected to be (0.068±0.011 mg/kg) in Daura and (0.021 mg/kg) in Dustin-Ma, while in Funtua, Kankiya, Katsina and Malumfashi, the concentrations were below detection limit. Thorium concentration was equally found to be (0.66±0.07 mg/kg) in Malumfashi, (0.54±0.07 mg/kg) in Daura, (0.43±0.06 mg/kg) in Dutsin-Ma, (0.25±0.04 mg/kg) in Kankia and (0.33±0.05 mg/kg) in Funtua. The concentration level of uranium and thorium accumulated in the baobab leave when analysed was found to be far below joint ATSDR/NIH safe limit of Uranium and Thorium intake in the human body. From this present work, we can see that the Baobab leave powder is safe for human consumption even though care should be taken to avoid contaminations

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Section: Resultssupporting

confidence: 91%

Uranium and Thorium contaminations of Baobab leave powder consumed in selected locations of Katsina State, North West Nigeria

Joseph,

Lawal,

Ubaidullah

et al. 2024

jobasr

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“…Higher concentrations of Th, equal to U, were found from plant samples growing close to or on a U-rich formation [40]. Transfer of Th from soil to food products has been observed in several international studies, e.g., [59][60][61][62], as well as accumulation of Th isotopes to humans from ingestion or inhalation, as in References [63][64][65]. Th resembles U in transferring from water (in hydroponic cultivation tests) or soil to plants via root uptake, because a major part of Th remains in the roots and only a minor part relocates to other parts of the plants [54].…”

Section: Thorium Isotopesmentioning

confidence: 77%

Transfer of Natural Radionuclides in Terrestrial Food Chains—A Review of Investigations in Finland

Salminen‐Paatero

Paatero

2021

IJERPH

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Transfer of natural radionuclides 210Pb, 210Po, 238U, and 228,230,232Th in subarctic food chains has been studied in Finland since the 1960s. The unique food chain lichen-reindeer-man related to Sami people in Finnish Lapland and other food chain options, from berries or mushrooms to man, have been explored and the activity concentrations of natural radionuclides in biological samples determined. The results from Finnish radioecological studies are summarized and differences in bioaccumulation between different radionuclides are discussed. It was found out that, although a substantial amount of activity concentration data exist from the research projects executed in Finland during the last 6 decades, more data, especially from U and Th, in biological environment and humans would be useful, e.g., for modeling purposes and for improved assessment of bioaccumulation and adverse effects (both radiological and chemical) of radionuclides.

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“…Studies have shown that thorium in the system soil-plant is preferentially bound to the root of plants and that translocation into the above-ground parts is low [35,36], probably due to its low solubility and high affinity for negatively charged components of the cell wall [37]. Different types of vegetables analyzed for their Th content in southern coastal regions of India, a high background radiation area, indicated that the highest concentrations were found in root, up to 184 mBq kg -1 and green vegetables varied from 26 ± 1 to 62 ± 2 Bq kg -1 [38].…”

Section: Absorption Of Th By Plantsmentioning

confidence: 99%

“…Scarce data are available on 232 Th intake with the diet and few countries have conducted representative national surveys [16,47]. Sathyapriya et al [38] estimated an effective dose resulting from 232 Th of 0.038 and 0.050 µSv y due to the ingestion of green leafy vegetables for female and male, respectively. The effective dose resulting from 232 Th ingestion in the daily diet in Poland was reported as 0.2 µSv y -1 [44].…”

Section: Effective Dosementioning

confidence: 99%

Th-232 Radiological Aspects of Carbonate Niobium Mining Waste Use as Agricultural Amendment

et al. 2023

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The use of mining residues in agriculture may be possible, as long as there be previous studies in different areas, one of them being the analysis of the involved radionuclides behavior. This study determined the concentrations of 232Th activity in soil, soil treated with lime, soil with carbonate residue from niobium mining, soil with the mixture of lime and carbonate, in two moments. The transfer factor of 232Th from the soil to the plant was analyzed, in this case, lettuce (n=20), in the different types of treatment and in two moments. The addition of carbonate to the soils did not significantly alter the levels of radioactivity for 232Th radionuclide in lettuce. The effective dose resulting from the lettuce ingestion varied from 0.09 to 0.3 µSv y-1.

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Estimation of thorium intake due to consumption of vegetables by inhabitants of high background radiation area by INAA

Cited by 8 publications

References 7 publications

Uranium and Thorium contaminations of Baobab leave powder consumed in selected locations of Katsina State, North West Nigeria

Uranium and Thorium contaminations of Baobab leave powder consumed in selected locations of Katsina State, North West Nigeria

Transfer of Natural Radionuclides in Terrestrial Food Chains—A Review of Investigations in Finland

Th-232 Radiological Aspects of Carbonate Niobium Mining Waste Use as Agricultural Amendment

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