Environmental behaviour of radioactive particles: Transfer to animals

Kozmin, G. V.; Фесенко, С. В.; Snegirev, A. S.; Санжарова, Н. И.; Kurachenko, YuA.

doi:10.1016/j.jenvrad.2019.106111

Cited by 9 publications

(3 citation statements)

References 19 publications

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“…Many radioactivity decay types exist, such as alpha particle, beta particle, and gamma-ray [2]. Alpha particles are one of the types of ionizing radiation, which is the least penetrating of the radiation emitted by unstable heavy metals [3].…”

Section: Introduction mentioning

confidence: 99%

“…It is also known as the "invisible or silent killer." Radon have three isotopes, 222 Rn, 220 Rn, and 219 Rn [3]. 220 Rn (thoron) is an alpha emitter with a half-life of 55.6 seconds and it is a product from the 232 Th series.…”

mentioning

confidence: 99%

“…Thoron is a short-lived radioactive gas that originates as a daughter product in the decay chains of thorium present either in the soil or plants [3]. The radioactive thorium series' gaseous decay products, radon and thoron, along with uranium, are responsible for a significant portion of the radioactivity found in human bodies.…”

mentioning

confidence: 99%

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Radiological Risk to Inhalation of Thoron Gas from Medical Materials Samples Derived from Medical Plants in Iraq

Abojassim,

Lawi,

Hassan

2024

Atom Indo.

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Pollution by thoron is one of the factors that is harmful to human health. Medical materials, especially those derived from plants, have natural ingredients which are a major source of natural radioactivity, thoron being one of them. Therefore, the presence of harmful radioactivity in these materials is a matter of concern. This study determined the concentrations of thoron (220Rn or radon-220) from 70 samples of medical materials derived from medical plants using a CR-39 detector. Samples are drugs (solid), skin creams, herbs, toothpaste, drugs (liquid), and cosmetic products found in Iraqi pharmacies. Also, radiological risks such as Annual Effective Dose (AED), Excessive Lifetime Cancer Risk (ELCR), and Lung Cancer Case (LCC) due to inhalation of thoron from medical materials samples in pharmacies were calculated. The results show that the results of the thoron concentrations in the samples of medical materials ranged from 1.02 Bq/m3 to 74.53 Bq/m3, with an average value of 18.21 ± 2.00 Bq/m3. The range values of AED, ELCR (×10-3) and LCC (×10-6) were 0.01-0.588 mSv/y, 0.04-2.36, and 0.18-10.58, respectively. It was als found that the thoron concentrations in samples of the present study vary from a minimum of 12.82 Bq/m3 in cosmetic products samples to a maximum of 30.29 Bq/m3 in herbs samples. Nonetheless, all thoron and radiological risk values were lower than the acceptable world limit (thoron = 200-300 Bq/m3 by ICRP and AED = 1.1-4.4 mSv/y by UNSCEAR).

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Section: Introduction mentioning

confidence: 99%

mentioning

confidence: 99%

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Radiological Risk to Inhalation of Thoron Gas from Medical Materials Samples Derived from Medical Plants in Iraq

Abojassim,

Lawi,

Hassan

2024

Atom Indo.

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Radioactive particles transport and absorbed doses distribution in the rats' gastrointestinal tract

Shapovalov

Denisova

Snegirev

et al. 2020

The Vii International Young Researchers’ Conference – Physics, Technology, Innovations (Pti-2020)

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Radioactive particles: biokinetic transfer parameters in the GIT of monogastric animals

Shapovalov

Kozmin

Zenkin

et al. 2020

J. Phys.: Conf. Ser.

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Transfer of radioactive particles in the environment is an important issue important for both radiobiology and radioecology. The article presents an analysis of the main patterns of “hot” radioactive particles transport in the digestive tract of monogastric animals (rats, guinea pigs and pigs), which serve as reference organisms in the tasks of assessing the radiation risk of environmental contamination. The models of particle transport in the gastrointestinal tract of monogastric animals were developed and their parameters were estimated.

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Environmental behaviour of radioactive particles: Transfer to animals

Cited by 9 publications

References 19 publications

Radiological Risk to Inhalation of Thoron Gas from Medical Materials Samples Derived from Medical Plants in Iraq

Radiological Risk to Inhalation of Thoron Gas from Medical Materials Samples Derived from Medical Plants in Iraq

Radioactive particles transport and absorbed doses distribution in the rats' gastrointestinal tract

Radioactive particles: biokinetic transfer parameters in the GIT of monogastric animals

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