L1 /
15
CH3041
PCBs IV
• The level of bioaccumulation
of PCBs has
slowly declined but the concentrations in
gull eggs, here
from Toronto
are still
appreciable.
slowly declined but the concentrations in
gull eggs, here
from Toronto
are still
appreciable.
• Brisbane River birds attained 16 ppm in
70s
• In the Antarctic seabirds have had
lipid
PCB concentrations of 185 ppm.
PCB concentrations of 185 ppm.
• PCB
concentrations in U.S. fish indicate no
substantial decrease since the 1980s.
substantial decrease since the 1980s.
