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̹ ȸ Ͼƿ μȸα(PCB) ݵü Ű¡ ȸ, μȸα(PCB) ݵü Ű¡ ۷ι ȸ ϰ ǰ ȭ ϱ õƴ. ȸ 150 Ͽ 500 ν Ը ̴.
ֱ ݵü ̼ Ѱ迡 Ȳ, ݵü Ű¡ ̷ ݵü Ȯ ߿ λϰ ִ.
2004 ۵Ǿ ط 21ȸ ´ ̹ ȸ ÷ İ ڻ о ٽ ̷ ִ μȸα(PCB) ݵü Ű¡ ڵ鿡 Ұ ȸ, پ ̴.
, 6, õÿ ѱPCB&ݵüŰ¡ȸ õ ǥ Ưȭ ȸ 'PCB ݵüŰ¡' ü ִ.
ȭü "õ Ưȭ ȸ '21ȸ PCB ݵüŰ¡' ̷ ϰ ٽ ÷ܱ ư ȸ DZ⸦ ٶ" ߴ.