SAPO Fotos

The oil covered hand of a firefighter who was overwhelmed by the thick oil spill while attempting to fix an underwater pump is seen after he he was brought to shore by his colleagues in Dalian, China on Tuesday, July 20, 2010. (AP Photo/Jiang He, Greenpeace)

A firefighter who was submerged in thick oil during an attempt to fix an underwater pump is brought ashore by his colleagues in Dalian, China on Tuesday, July 20, 2010. (AP Photo/Jiang He, Greenpeace)

Workers attempt to rescue a firefighter from drowning in the oil slick during the oil spill clean-up operations at Dalian's Port on July 20, 2010. (REUTERS/Jiang He/Greenpeace)

A firefighter's dirtied boots are seen on July 18, 2010 after Chinese firemen extinguished a blaze at a port in Dalian, China. (STR/AFP/Getty Images)

A small hole in the oil slick covering parts of Dalian's port reveals relatively cleaner water and seaweed beneath on July 18, 2010. (AFP/AFP/Getty Images)

People's Liberation Army (PLA) soldiers place protective booms to control the spread of leaked crude oil at a beach in Dalian, China on July 21, 2010. Dalian's Xingang oil port has resumed some loadings for refined fuel for the domestic market, but fuel exports remain temporarily halted, industry officials said, as the oil spill clean-up is still under way. (REUTERS/Stringer)