Radiation News Roundup Apr 04, 2016 Tokyo: Japanese researchers have detected relatively high levels of radioactive substances in sediment in multiple rivers running through Fukushima prefecture, the media reported on Friday. zeenews.india.com EDF Energy has inaugurated a new 'dry store' for used nuclear fuel that enables continued operation of the Sizewell B nuclear power plant until at least 2035. The plant, which is in Suffolk, accounts for 3% of the UK's total electricity demand. world-nuclear-news.org Denison Mines Corp is to begin a pre-feasibility study at the Wheeler River project in Canada's Athabasca Basin after a newly published preliminary economic assessment (PEA) found "robust" economics for a proposed underground mining operation based on current uranium prices. world-nuclear-news.org China has said is restricting trade with North Korea, announcing bans on gold and some coal imports and jet fuel exports, in line with UN sanctions. bbc.com