Mercury in the Bay - (Why there is so much)

[dz]

Mercury Rush - Mercury in the Bay

http://www.kqed.org/quest/television/mercury-in-the-bay--part-1

I just stumbled upon this multimedia piece (slides and audio) on KQED Quest.
The Bay is contaminated by the huge mercury mines that were in production for the gold rush.

Part 2 about mercury in the fish.