COVID-19 and the Additional Radiological Risk during the Lockdown Period in the Province of Naples City (South Italy)
Giuseppe La Verde; Valeria Artiola; Marco La Commara; Vittoria D’Avino; Leopoldo Angrisani; Giuseppe Sabatino; Mariagabriella Pugliese
The lockdown restrictions, as a first solution to contain the spread of the COVID-19 pandemic, have affected everyone&rsquo:s life and habits, including the time spent at home. The latter factor has drawn attention to indoor air quality and the impact on human health, particularly for chemical pollutants. This study investigated how the increasing time indoor influenced exposure to natural radioactive substances, such as radon gas. To calculate the radiological risk, we considered the most consolidated indices used for radiation protection: annual effective dose, excess lifetime cancer risk, and the lung cancer case. Furthermore, two different exposure times were considered: pre-lockdown and post-lockdown. The lockdown increased the indoor exposure time by 4% and, consequently, the radiological risk factors by 9%. Furthermore, the reference value of 300 Bq/m3, considered acceptable for human radiation protection, may need to be lowered further in the case of conditions similar to those of the lockdown period.
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