can i install my own radon mitigation system
http://business.decaturdailydemocrat.com/decaturdailydemocrat/news/read/39927116/What_are_the_Symptoms_of_Radon_Poisoning?
Even if you identify no changes to your living environment, the radon levels will transform with time. For information on the average radon levels in your area (UNITED STATE) see the interactive map on the EPA