Radioactive sediment found in Fukushima rivers

5 April 2016

Researchers in Japan have detected relatively high levels of radioactive substances in sediment in rivers running through Fukushima Prefecture, Japanese media reported. The prefectural government in January surveyed radioactive materials in soil and other sediment accumulated on the bottoms and banks of 72 rivers. They found up to 54,500 becquerels per kilogram of radioactive substances in the Maeda River in Futaba Town, where the Fukushima Daiichi NPP is situated, and 39,600 becquerels in the Hiru River in Fukushima City. They also detected more than 10,000 becquerels at five other locations in four municipalities.

The prefectural government plans to consider restricting access to rivers with high concentrations of radioactive materials. It also plans to ask the central government to remove contaminated soil and other sediment. Environment Ministry officials say the guidelines do not require decontamination outside living areas. But they add they will consider what to do with highly radioactive sediment after assessing the situation.



Privacy Policy
We have updated our privacy policy. In the latest update it explains what cookies are and how we use them on our site. To learn more about cookies and their benefits, please view our privacy policy. Please be aware that parts of this site will not function correctly if you disable cookies. By continuing to use this site, you consent to our use of cookies in accordance with our privacy policy unless you have disabled them.