Which recommendation is made for reducing employee exposures to radon according to ANSI-AARST standards?

The recommendation to ventilate the work area with fresh outside air is grounded in effective strategies for reducing radon exposure. Fresh outside air helps to dilute the concentration of radon gas indoors, thereby minimizing the overall levels of radon that employees might be exposed to. This practice aims to enhance air circulation and promote the exchange of indoor air with less-radon-laden outdoor air, which is critical in environments with higher radon potential.

By implementing proper ventilation, workplaces can significantly lower exposure levels, especially in buildings that may have been constructed in radon-prone areas or that are located below ground level. This approach aligns with the ANSI-AARST standards, which emphasize the importance of maintaining indoor air quality and protecting occupants from health risks associated with radon exposure.

Other strategies, such as air filtration systems, protective barriers, or limiting time spent in high radon areas, may contribute to risk reduction, but the immediate and impactful method supported by the standards is ensuring adequate ventilation. Properly ventilated spaces can more effectively manage indoor radon levels, ensuring a safer environment for employees.