Assessment of Alpha Doses Received by Spa Workers Due to the Inhalation of 214Po and 218Po Radon Progeny

Misdaq, M. A.; fakir, M. Ben el; Ouguidi, J.

doi:10.1097/hp.0000000000001605

Cited by 6 publications

(2 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Equivalent doses received by eye tissue of patients wearing contact lenses resulting from the transfer of all residual energies of a beta-particle of index j and initial energy E βj (max), emitted by a radionuclide of the 238 U series and a beta-particle of index j′ and initial energy E βj′ (max), emitted by a radionuclide of the 232 Th series are respectively given by (Misdaq et al 2021):…”

Section: Methods Of Studymentioning

confidence: 99%

Measurement of 238U, 232Th, 222Rn and 220Rn Contents in Optical Contact Lenses: Resulting Alpha and Beta Equivalent Doses to the Eye Tissues of Adult Patients

Misdaq,

Elouardi

2023

Health Physics

View full text Add to dashboard Cite

To estimate equivalent doses received by eye tissues of patients, contents of uranium (238U), thorium (232Th), radon (222Rn), and thoron (220Rn) were determined inside various optical contact lenses used for vision correction. 238U, 232Th, 222Rn, and 220Rn contents varied between (3.44 ± 0.24) mBq kg−1 and (18.3 ± 1.28) mBq kg−1, (0.57 ± 0.04) mBq kg−1 and (3.53 ± 0.25) mBq kg−1, (3.44 ± 0.24) mBq kg−1 and (18.3 ± 1.28) mBq kg−1, and (0.57 ± 0.04) mBq kg−1 and (3.53 ± 0.25) mBq kg−1, respectively. New external dosimetric models, depending on the cornea eye surface of patients, 238U, 232Th, and 222Rn concentrations inside optical contact lenses, half-life of the emitting radionuclides, and exposure time of patients, have been developed. It has been shown that alpha-particles emitted by the 238U and 232Th series inside the studied optical lenses transfer their energies essentially to the cornea tissues whereas the emitted beta-particles may reach and lose their energies in the crystalline lens of eyes of patients. Alpha-equivalent doses received by eye tissues of patients due to the diffusion of 222Rn and 220Rn gases present in the considered optical lenses were determined. The higher value of the total (alpha plus beta) equivalent dose to the left and right eyes of adult patients wearing optical contact lenses (14 hours per day) has been found equal to 1.32 mSv y−1 cm − 2. It is recommended for patients to reduce the wearing period of optical contact lenses to reduce eye disease risks such as cataract.

show abstract

Section: Methods Of Studymentioning

confidence: 99%

Measurement of 238U, 232Th, 222Rn and 220Rn Contents in Optical Contact Lenses: Resulting Alpha and Beta Equivalent Doses to the Eye Tissues of Adult Patients

Misdaq,

Elouardi

2023

Health Physics

View full text Add to dashboard Cite

show abstract

“…13 Los trabajadores varones que pasaban ocho horas al día (2 080 horas al año) en una fábrica de mármol recibían una dosis máxima de 34,46 milisievert (mSv) año-1, que es superior al intervalo límite de dosis (3-10 mSv año-1) dado por la International Commision on Radiological Protection (ICRP). 14 El conocer cómo varía el radón en ambientes interiores durante el año permite determinar el mejor momento para realizar las pruebas de medición y evitar subestimar la exposición. En un estudio en edificios ubicados en 46 estados de EE.…”

unclassified

La exposición al radón en las viviendas: ¿Un problema de salud pública? La necesidad de la implementación de un programa integral de vigilancia de radón

Ordoñez-Aquino¹,

Gonzales²

2023

spmi

View full text Add to dashboard Cite

La Organización Mundial de la Salud (OMS) reconoce al radón como la segunda causa principal de cáncer de pulmón, en la población general, después del producido por el tabaquismo.1 Con un mayor riesgo de cáncer de pulmón para los fumadores debido a los efectos sinérgicos de los productos de descomposición del radón y el tabaquismo.2 También la exposición al radón ha sido asociada a leucemia infantil en pacientes que viven en Europa y áreas con altos niveles de radón (≥100 Bq/m3).3 Las partículas alfa emitidas por el radón pueden contribuir al riesgo de cáncer de piel melanoma y no melanoma y asma.4,5 Igualmente, se ha asociado la exposición al radón residencial con cánceres no pulmonares, como los de piel, sistema nervioso central (SNC), renal y estómago.

show abstract

Transfer factors of 238U, 232Th, 40K, 210Pb to crops and radiation impact assessment in semi-arid environment

Dirican,

Dikmen,

Şahin

et al. 2024

J Radioanal Nucl Chem

View full text Add to dashboard Cite

Research on the safety of staple agricultural food products has always been one of humanity’s priorities and provides input for dose assessment models. Within this important priority, activity concentrations, transfer factors, and radiological effects of 238U, 232Th, 210Pb, and 40K were studied for selected crops in a village close to the NORM area, located in Central Anatolia region of Turkey. The RESRAD-onsite code has been used to assess the total dose rate. The simulation of the risk analysis covered 80 years. The maximum total dose of 0.5 mSv y−1 was obtained at t = 30 years.

show abstract

Assessment of Alpha Doses Received by Spa Workers Due to the Inhalation of 214Po and 218Po Radon Progeny

Abstract: The reduction of exposure time to radon and its progeny and a good airing may significantly contribute to reduce lung cancer risks for spa workers.

Cited by 6 publications

References 23 publications

Measurement of 238U, 232Th, 222Rn and 220Rn Contents in Optical Contact Lenses: Resulting Alpha and Beta Equivalent Doses to the Eye Tissues of Adult Patients

Measurement of 238U, 232Th, 222Rn and 220Rn Contents in Optical Contact Lenses: Resulting Alpha and Beta Equivalent Doses to the Eye Tissues of Adult Patients

La exposición al radón en las viviendas: ¿Un problema de salud pública? La necesidad de la implementación de un programa integral de vigilancia de radón

Transfer factors of 238U, 232Th, 40K, 210Pb to crops and radiation impact assessment in semi-arid environment

Contact Info

Product

Resources

About