All states have radon contact agencies, usually the state health departments or divisions of environmental or radiation protection. These agencies and the regional offices of the U.S. Environmental Protection Agency (EPA) are good sources of general information about the health risks of radon, radon measurements in your house, and corrections of radon problems. The publications listed under "Suggested Readings - General References" are among those available from EPA. Many state radon agencies have these or similar publications available. For technical information on the geology of radon, look at the publications listed under "Suggested Readings - Technical References".
EPA Region 1 JFK Federal Building Boston, MA 02203 EPA Region 2 26 Federal Plaza New York, NY 10278 EPA Region 3 841 Chestnut Street Philadelphia, PA 19107 EPA Region 4 345 Courtland St. N.E. Atlanta GA 30365 EPA Region 5 230 South Dearborn Street Chicago, IL 60604 EPA Region 6 1445 Ross Avenue Dallas TX 75202-2733 EPA Region 7 726 Minnesota Avenue Kansas City, KS 66101 EPA Region 8 One Denver Place, Suite 1300 999 18th Street Denver, CO 80202-2413 EPA Region 9 215 Fremont Street San Francisco, CA 94105 EPA Region 10 1200 Sixth Avenue Seattle, WA 98101