Impapuro za kopi idafite karubone idafite PCB (biphenili polychlorine)

Mu bushakashatsi bwakozwe mu 1997, kaminuza ya Floride yasanze ibiro bidahumeka nabi byakoreshaga impapuro nyinshi za kopi zitagira karubone bifite VOC nyinshi mu kirere, mu gihe ibiro bihumeka neza byakoreshaga impapuro nkeya bitabikora.Ubushakashatsi bwagaragaje kandi ko umubare munini w’ikiruhuko cy’uburwayi n’ibibazo by’uburwayi mu biro byakoreshaga impapuro nyinshi za kopi zitagira karubone.Ubundi bushakashatsi bwasohotse mu bidukikije n’ubuzima, bwahujije guhura n’akazi n’umukungugu wimpapuro zidakira hamwe nimpapuro zitagira karubone n’ibyago byinshi byo kwibasirwa na asima ku bantu bakuru.