Around 45% of children in Fukushima Prefecture surveyed by the local and central governments in late March experienced thyroid exposure to radiation, although in all cases in trace amounts that did not warrant further examination, officials of the Nuclear Safety Commission said Tuesday. The survey was conducted on 1,080 children aged 0 to 15 in Iwaki, Kawamata and Iitate on March 26-30 in light of radiation leakages from the Fukushima Daiichi nuclear power plant crippled after the March 11 earthquake and tsunami disaster, Japan\'\'s News Agency \"Kyodo\" reported. Separately, a survey of soil at four locations in the city of Fukushima on June 26 found that all samples were contaminated with radioactive cesium, measuring 16,000 to 46,000 becquerels per kilogram and exceeding the legal limit of 10,000 becquerels per kg, citizens groups involved said Tuesday.