A woman covered with mud pauses as she cleans her business premises at a shopping area damaged by the March 11 earthquake and tsunami in Ishinomaki, northern Japan April 4, 2011. Tokyo Electric Power (TEPCO) said on Monday it would release more than 10,000 tonnes of contaminated water from its crippled Fukushima nuclear plant into the sea to free up more storage space for water that had much higher levels of radioactivity. REUTERS/Carlos Barria (JAPAN - Tags: DISASTER)