Montana’s environmental regulator has denied a petition to designate the Big Hole River as impaired by nitrogen and phosphorus, throwing a wrench in environmentalists’ efforts to put the blue-ribbon ...

Water quality monitoring at a freshwater loch has shown that the level of nutrients was not affected by salmon farming over ...

The "skyglow" produced when light from cities bounces off clouds can help cyanobacteria and other aquatic microbes grow at ...

Two conservation groups are petitioning the Montana Department of Environmental Quality to designate the Big Hole River, a treasured southwestern Montana fishery, as impaired for nutrient pollution.

Anyone can join an all-volunteer effort that keep track of how much nitrate and nitrite are getting into Iowa's water ...

The Montana Department of Environmental Quality has rejected a petition filed by two river advocacy groups seeking an ...

Degraded wetlands can themselves become pollution sources that can contaminate surface water and groundwater quality by ...

The Chesapeake Bay Foundation filed a petition Monday in Circuit Court for Cecil County challenging a permit for a proposed ...

Common sources of nutrient pollution include runoff containing fertilizers ... oversight of state laws and rules governing water quality. “Numeric criteria are applicable.” ...

DEQ must apply numeric nutrient criteria in every aspect of its implementation of federal Clean Water Act programs, from pollution permit decisions to river health assessments and corollary ...