Indeed, the quantity of PCBs still in use plus the quantity still languishing in waste dumps exceeds the total amount that has already escaped into the general environment. Without a program to recall and contain them, semivolatile PCBs will continue to insinuate themselves into the food chain for decades.
Having Faith: An Ecologist's Journey to Motherhood (ed. Da Capo Press, 2012) - ISBN: 9780738216621