  Radon is a colorless, odorless gas that arises naturally within the ground from the decay of radioactive elements. It is the leading cause of lung cancer among non-smokers. The action level for home exposure is 4 picocuries of radion per liter of air (4 pCi/L).According to the US EPA, the average radon level in American homes is 1.25 pCi/L, and 6 million homes have levels of 4 pCi/L and above. Radon is a colorless, odorless gas that arises naturally within the ground from the decay of radioactive elements. It is the leading cause of lung cancer among non-smokers. The action level for home exposure is 4 picocuries of radion per liter of air (4 pCi/L).
The Straz Center is located downtown on a 9-acre (36,000 m2) site along the east bank of the Hillsborough River. As the second largest performing arts complex in the Southeastern United States (behind the Adrienne Arsht Center for the Performing Arts), the 335,000-square-foot (31,100 m2) venue provides an environment for a variety of events.
The facility is perhaps most famous for its forbidding location, isolated on a rocky island in the middle of San Francisco Bay. In the three decades that Alcatraz was in operation, there were only 14 escape attempts involving 36 men, according to the FBI.