ZT:
Last year, the FDA restricted imports of eel from China after FDA tests found that 91% of those sampled contained leucomalachite green — some at levels up to 3,239 parts per billion. "That level was disturbingly high," says Kraemer.
China banned malachite green in 2002. Yet the violations indicate that it's still widely used in China's aquaculture industry, the FDA says.
Even before Thursday's move by the FDA, the agency had restricted all eel from China unless the importer proves that it's safe. Last year, Canada also started testing every eel shipment from China for malachite green. Japan and South Korea have restricted Chinese eel imports in recent years as well.
http://www.usatoday.com/money/industries/food/2007-06-28-fish-cover-usat_N.htm