Soo bandhig: Dunida casriga ah ee tignoolajiyada, daabacaadda wareegyada (PCBs) waa laf dhabarta aaladaha elegtarooniga ah ee aan la tirin karin. Sanadihii la soo dhaafay, baahida loo qabo PCB-yada yaryar, dhaqso badan, iyo waxtarka badan ayaa kor u kacay, taasoo keentay kororka cilmi-baarista iyo horumarinta (R&D) iyo baahiyaha hal-abuurka
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