Nitrate pollution remains high in many U.S. rivers
Summit County Citizens Voice,
Agricultural runoff has left many major rivers polluted with nitrates. ‘Unfortunately, there is no widespread evidence of…
Agricultural runoff has left many major rivers polluted with nitrates. ‘Unfortunately, there is no widespread evidence of…
During 1945 to 1980, nitrate levels in large U.S. rivers increased up to fivefold in intensively managed…