Hg concentrations in local salmon varied from 0.07 to 0.15 ppm, and lead concentrations ranged from 0.30 to 0.95 ppm— that is, they were more than an order of magnitude higher
Hg concentrations in local salmon varied from 0.07 to 0.15 ppm, and lead concentrations ranged from 0.30 to 0.95 ppm— that is, they were more than an order of magnitude higher