Related Experiment Video
Updated: Jul 9, 2026
06:20
Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
Evaluation of Lung Doses from Radon and Thoron Exposure by Using LR-115 Detectors
1Department of Physics, College of Science, Majmaah University, Al-Majmaah-11952, Saudi Arabia.
Health Physics
|July 7, 2026
Summary
Indoor radon (222Rn) and thoron (220Rn) levels in North India were assessed. Concentrations and lung doses were found to be below action levels, indicating safety for the population.
Area of Science:
- Environmental Science
- Radiological Protection
- Public Health
Background:
- Indoor radon (222Rn) and thoron (220Rn) are naturally occurring radioactive gases that pose inhalation risks.
- Assessing indoor radon and thoron concentrations is crucial for evaluating potential health hazards in residential areas.
- Previous studies have highlighted the importance of monitoring these radionuclides in different geographical regions.
Purpose of the Study:
- To measure indoor radon (222Rn) and thoron (220Rn) concentrations in dwellings in Mainpuri city, Uttar Pradesh, North India.
- To assess the associated health risks by calculating lung doses from inhalation of these radioactive gases.
- To establish baseline data for future research and provide a reference for similar studies, including comparisons with Saudi Arabia.
Main Methods:
- Utilized dosimeters and the pinhole technique for measuring indoor radon (222Rn) and thoron (220Rn) concentrations.
- Calculated annual effective dose (AED) and dose rates to the lung for the human population.
- Correlated radon levels with existing data and compared findings with studies conducted in the Kingdom of Saudi Arabia.
Main Results:
- Radon (222Rn) concentrations ranged from 5.76 to 86.57 Bq m-3 in Aunchha and 5.82 to 81.51 Bq m-3 in Mainpuri.
- Thoron (220Rn) concentrations varied from 5.27 to 129.13 Bq m-3 in Aunchha and 22.56 to 96.43 Bq m-3 in Mainpuri.
- Annual effective doses were within safe limits (0.19–1.42 mSv y-1), and lung dose rates were also found to be low, with a strong correlation (R2 = 0.84) observed between 222Rn levels.
Conclusions:
- Indoor radon (222Rn) and thoron (220Rn) concentrations in the studied areas of North India are below established action levels.
- The calculated lung doses and annual effective doses indicate that the population in this region is safe from significant health hazards associated with these radionuclides.
- The study provides valuable baseline data for future radiological protection research and serves as a reference for similar assessments in other regions, including Saudi Arabia.
More Related Videos
07:31Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator
Published on: May 9, 2014
06:28Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
Published on: January 30, 2020
Related Concept Videos
01:13Radiological Investigation III: Pulmonary Angiogram and PET Scan
Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
01:30Radiological Investigation II: MRI and Ventilation Perfusion Scan
Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
01:30Radiological Investigation I: X-ray and CT
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and the...
02:59Biological Effects of Radiation
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they produce ions...