Anatomy of a Toxic Spill: The Hudson River PCB StoryLoading Next Slide
Leaf-like Phytoplankton Phytoplankton (plant-plankton) are single-celled or very simple photosynthetic life forms built from the ecosystem´s dissolved carbon sources. Phytoplankton continually process the water they live in, and so accumulate elevated levels of PCBs. In the 1970's, phytoplankton were found with levels as great as one part-per-million, but today levels have settled in around the low-to-mid parts-per-trillion range.
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