EPA Restarts Assessment of Health Risks from Nitrate in Water circleofblue.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from circleofblue.org Daily Mail and Mail on Sunday newspapers.
Dow, Sunoco, and Koch Industries are among scores of companies that own facilities near the river and legally release toxic chemicals into the water each year, though mostly within regulations.
Ahead of U.S. Transportation Secretary Pete Buttigieg s visit on Thursday to the site of a toxic train derailment in Ohio, here is what we know about the scope of the incident: