The chart shows the levels of total PCBs in 23 samples of fish oil destined for livestock feed taken by the CFIA from 2002 to 2006 in milligrams per kilogram. It also indicates the mean level of PCBs in these samples, which is 191.8 milligrams per kilogram, and the Action Level for Total PCBs in Marine Oils, which has been reduced to 300 milligrams per kilogram.