Throughout the country, several million people have already tested for radon. Underground well water can transport the radon from the soil into the house, when taking a shower, doing laundry, or washing dishes. If your water comes from a municipal reservoir supply, you need not worry about radon in the water. When radon in water is stored in a reservoir for more than 30 days, the radon decays away to practically nothing. Every 3.825 days half the radon disappears through natural radioactive decay.
Scientists believe radon exposure is the second leading cause of lung cancer.
When radon decays, it shoots off alpha particles. These are small, heavy, electrically charged, sub-atomic particles consisting of two protons and two neutrons. If an alpha particle strikes the chromosomes in a lung cell, it could alter the way that cell reproduces. Our bodies immune system should recognize and destroy these mutant cells before they can multiply over the next 10 to 20 years into a recognizable cancerous growth. Some peoples immune system is better than others.