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Environmental Radon, Thoron and their Decay Products may cause Lung Cancer: Need for Effective Measurements

Parminder Singh

8 Jul 2022

DOI: 10.5281/zenodo.7133138


Study of radon (222Rn), thoron (220Rn) and their daughter products is an important aspect as they are the main contributors to the total radiation dose inhaled by human beings from natural radioactive sources. The contribution of radiation dose from daughter elements of 222Rn and 220Rn are more harmful and they cannot be neglected. The alpha-emitting, short-lived decay products are present everywhere in the environment in attached or unattached fractions of air particles. During inhalation, these daughter products stay in the lungs, which may lead to lung cancer.


Department of Physics, Khalsa College Amritsar, Punjab, India 143001
Correspondence and requests for materials should be addressed to PS



Singh P (2022) Environmental Radon, Thoron and their Decay Products may cause Lung Cancer: Need for Effective Measurements. Environ Sci Arch 1(1):44-45. DOI: 10.5281/zenodo.7133138


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2. Singh P, Saini K, Mishra R, et al. (2016) Attached, unattached fraction of progeny concentrations and equilibrium factor for dose assessments from 222Rn and 220Rn. Radiation and Environmental Biophysics 55(3):401-410.

3. UNSCEAR (United Nation Scientific Committee on the Effect of Atomic Radiation). (2000). Annex B: Exposures from natural radiation sources. United Nations, New York.


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