Radiation News Roundup April 22, 2015 TEPCO to abandon second robot inside Fukushima reactor. enenews.com The Japanese health ministry recommends raising the maximum radiation-exposure limit for nuclear plant workers during an emergency from the current 100 millisieverts to 250 millisieverts. ajw.asahi The United States and South Korea have reached a bilateral agreement on nuclear power that extends the Asian nation's ability to enrich uranium for nuclear power and to reprocess spent nuclear fuel. nuclearstreet.com Fortum has completed construction of a unique new emergency air-cooling system at the twin-unit Loviisa nuclear power station in Finland, the company said today. nucnet.org