Isle Royale Forums

fonixmunkee wrote: Sat Mar 30, 2019 11:38 pm What causes the mercury level to be so high in the lakes of Isle Royale? The old mines? Acid rain?

I once spoke to researchers who suspected the high mercury was from paper plants along the north shore (CN) of Superior.

Any coal-burning power plant produces mercury. Once airborne, it can go along way.

Fishes Isle Royale - (full book) 1982/National Oceanic and Atmospheric Administration repository


https://repository.library.noaa.gov/vie ... 89_DS1.pdf