Radon is a naturally occurring radioactive gas, colorless and odorless, and, according to the World Health Organization, the largest source of ionizing radiation exposure for the global population. It has been classified by the International Agency for Research on Cancer since 1988 as a Group 1 carcinogenic agent.<\/p>\n\n
Radon monitoring in workplace air is an obligation of the employer, as stated in Article 147 of Decree-Law No. 108\/2018 of December 3. Article 146 establishes the requirement for employers to ensure that radon activity concentration in the workplace is as low as reasonably possible and below the reference level (300 Bq\/m\u00b3).<\/p>\n\n
In high susceptibility areas, or in workplaces with specific characteristics, the monitoring frequency should not exceed 12 months. In low or moderate susceptibility areas, it is recommended that monitoring be carried out every five years. <\/p>\n\n
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