The U.S. 7th Fleet says washing with soap and water removed the radioactivity . The Navy moves ships and planes away from the Stephen Valley plant . The Navy says `` airborne radioactivity '' was detected about 100 miles away from the plant . The most exposure anyone onboard received is about one month normal radiation dose .
The Navy says washing with soap and water removed the radioactivity . The U.S. 7th Fleet moves ships and planes away from the Fukushima Daiichi plant . The Navy says `` airborne radioactivity '' was detected 100 miles away from the plant . The most exposure anyone onboard received is less than a month 's normal radiation dose .