Kanemi Yusho

In 1968, the Kanemi Yusho accident occurred in the western part of Japan, and this was caused by the intake of PCB-contaminated rice oil. Thousands of people suffered from the illness caused by PCB and its highly toxic derivatives, polychlorodibenzofurans (PCDF) in the rice oil. PCB used as a heating medium leaked from a pin-hole in the tubings of the oil manufacturing plant and contaminated the rice oil. Fuithermra-e, PCB contamination of the natural environment and biota was evident based on the many research works since Jensen, (the Swedish scientist), reported his findings in 1966 [33], that PCBs contaminated birds. 

Detailed examination of polychlorinated dibenzofurans in PCB preparations and Kanemi Yusho oil, Bull. Environ. Cont. Toxicol. 18 67 (1977). 

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