The tritium discovered last month in groundwater in Genoa was not the first radioactive material released in the decommissioning of the former Dairyland Power nuclear plant. Winonadailynews.com A power company in western Japan has decided to decommission an aging nuclear reactor. The No. 2 reactor at the Ikata plant in Ehime Prefecture has been in operation for 36 years. Government guidelines introduced after the 2011 Fukushima Daiichi nuclear accident limit the operation of reactors to 40 years in principle. www3.Nhk.or.jp Iran’s nuclear chief Ali Akbar Salehi said Mon. that the Atomic Energy Organization of Iran is planning to unveil a number of nuclear achievements on National Nuclear Technology Day. En.mehrnews.com The United States has imposed sanctions on seven Pakistani companies over suspicions that they have engaged in nuclear trade. The move could potentially damage Pakistan's ambition to join the Nuclear Suppliers Group (NSG), a group of countries that can trade nuclear technologies. Rferl.org