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Herringgulleggs124ppm
Smelt1.04ppm
Laketrout4.83ppm
Zooplankton0.123ppm Phytoplankton
0.025ppm
Concen
traA
onofP
CBs
Notallofthe209kindsofPCBhavethesameeffects.Somehaveproper7eslikedioxin(oneoftheworld'smosttoxicman‐madecompounds),somePCBsactlikehormones,andotherPCBsarenervepoisons.PCBsaltermajorsystemsinthebody(immune,hormone,nervous,andenzymesystems);therefore,PCBsaffectawidevarietyofbodyorgansandfunc7ons.
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Teratogens
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TwoSourcesofPollu7on
1) PointSource2) Non‐PointSource