PCB's found in fish near an aircraft carrier sunk in 2006 as an artificial reef near Pensacola, Florida have raised concerns about the impacts, although the ship was located much closer to shore and in much shallower waters than Sinkex vessels.
"Annual monitoring by the Florida Fish and Wildlife Conservation Commission of waters around the USS Oriskany concluded that fish around the carrier exceeded state and federal PCB standards in the first two years. Florida's PCB limits are 50 parts per billion for safe human consumption— EPA standards are 20 ppb. Fish later collected saw a drop in those levels overall, but some still exceeded the EPA and Florida standards."read more'via Blog this'
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