> The heavy metals coming from the steel refineries ... Steel mills or petroleum refineries. We have both. I thought that mercury in the environment came most

> The heavy metals coming from the steel refineries ... Steel mills or petroleum refineries. We have both. I thought that mercury in the environment came mostly from coal fired power plants. The mills have their share of pollution issues but I think that's more air pollution. Well... There was the issue with killing a bunch of fish a couple years ago. IIRC that was cyanide.