Phoenix, Arizona – The difference between a well-protected interior space and an exposed room during a nuclear emergency could reduce radiation exposure by up to 90% in the first critical hours.
According to the U.S. Food and Drug Administration and Arizona Department of Emergency and Military Affairs, residents near the Palo Verde Nuclear Generating Station west of Phoenix may be directed to shelter in place immediately if an incident occurs. With the plant located near one of the fastest-growing metro areas in the country, millions could be affected depending on wind direction and timing.
Unlike many northern states, most homes in Arizona do not have basements. That means the safest option for many residents is a small, windowless interior room on the lowest level of a building. Bathrooms, closets and central hallways offer the best protection when surrounded by multiple walls and dense materials.
In Phoenix-area homes and apartments, residents should avoid rooms with large windows and move away from exterior walls. In multi-story buildings, lower floors and interior corridors provide safer alternatives, especially if additional shielding like books, water containers or furniture is used.
Desert wind patterns can shift quickly, potentially expanding the affected area beyond the immediate zone near Palo Verde.
Potassium iodide, or KI tablets, may be recommended to protect the thyroid, but they do not shield the rest of the body. Shelter choice remains the most immediate and effective protection.
Emergency alerts could be issued with little warning. Identifying your safest indoor space now—especially without a basement—could make a critical difference in how long you remain protected.
