What is one type of water supply treatment for radon in well water?

One type of water supply treatment for radon in well water is a point of entry device. This system is designed to treat all the water entering a household, which is particularly effective for dealing with radon, especially since radon can be dissolved in water. A point of entry device can include various technologies, such as aeration and granular activated carbon systems, to help reduce radon levels before the water is distributed throughout the home.

By treating the water at the point of entry, these systems ensure that any radon present is addressed before it has a chance to enter living spaces, thereby significantly reducing the risk of inhalation exposure to radon gas from water sources used for drinking, cooking, and bathing. This comprehensive treatment is essential because radon can evaporate into the air during water use, leading to increased indoor radon levels, which poses significant health risks.

In contrast, other options such as point of use devices target specific outlets, making them less effective for overall household safety since they only treat water immediately before use rather than all incoming water. Similar limitations apply to techniques like reverse osmosis and distillation, which may not specifically target radon as effectively as a point of entry system designed for that purpose.