They’re in uncharted waters. Experts say that when an Iranian tanker collided with a cargo ship on Jan. 6, 122,000 tons of noxious condensate were released into some of China and Japan’s most important fishing areas. Unlike crude oil, condensate is nearly invisible and can’t be pumped out of the water, instead needing to dissolve or evaporate. Until then, fish from those waters may be toxic. It’s a major test of Beijing’s ability to respond to a huge environmental disaster, and authorities have ordered a fishing ban and further investigation.