A study of 222Rn/220Rn exhalation rate and indoor 222Rn/220Rn levels in higher Himalayan terrain
Rohit Singh Sajwan1, Veena Joshi2, Naresh Kumar3
1Department of Chemistry, Alpine Institute of Management and Technology, Dehradun 248007, India.
Radiation Protection Dosimetry
|July 17, 2024
Summary
Radon and thoron gas concentrations were higher than global averages in a tectonically active area. Despite elevated levels, the study found no significant health risks from exposure to these radioactive gases and their byproducts.
Area of Science:
- Environmental Science
- Radiological Health
- Geophysics
Background:
- Radon (Rn) and thoron (Tn) are naturally occurring radioactive gases contributing to indoor radiation.
- These gases decay into radioactive ions that attach to airborne particles.
- Indoor radon and thoron levels are influenced by geological factors, particularly in tectonically active regions.
Purpose of the Study:
- To investigate radon and thoron exhalation rates and indoor concentrations in a tectonically active location.
- To compare measured values with global averages.
- To assess the potential health risks associated with elevated radon and thoron levels.
Main Methods:
- Measurements of radon mass exhalation and thoron surface exhalation rates were conducted.
- Indoor concentrations of radon-222 (222Rn) and thoron-220 (220Rn) were determined.
- Correlation analysis was performed between exhalation rates and indoor concentrations.
- Exposure dose calculations were made to assess health risks.
Main Results:
- Average radon mass exhalation and thoron surface exhalation rates exceeded global averages.
- Consequently, average indoor radon and thoron concentrations were also higher than worldwide values.
- No significant correlation was found between the exhalation rates and indoor concentrations of 222Rn and 220Rn.
- Calculated exposure doses did not indicate a significant health risk.
Conclusions:
- The studied tectonically active area exhibits higher-than-average radon and thoron exhalation and indoor concentrations.
- Despite elevated levels, the current exposure does not pose a significant health concern.
- Further research may be warranted to understand the lack of correlation between exhalation and concentration.
Related Concept Videos
01:30Radiological Investigation II: MRI and Ventilation Perfusion Scan
110
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...
110
02:48Radioactive Decay and Radiometric Dating
33.7K
Radioactivity is a spontaneous disintegration of an unstable nuclide and is a random process, as all the nuclei in the sample do not decay simultaneously. The number of disintegrations per unit time is called the activity (A), which is directly proportional to the number of nuclei in the sample. The decay constant (λ) is an average probability of decay per nucleus in unit time.
33.7K
01:20Assessment of Ventilation I: Respiratory Rate
1.1K
Assessment of Ventilation
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
1.1K
01:05Absorption of Radiation
719
The rate of heat transfer by emitted radiation is described by the Stefan-Boltzmann law of radiation:
719
01:24Factors Affecting Respiration
4.9K
Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:
4.9K
01:13Radiological Investigation III: Pulmonary Angiogram and PET Scan
90
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...
90