The measures are part of an agreement signed last year to reduce nutrient pollution and sediment in the bay and its tributaries by 2010.

In ditches and river courses, nutrient pollution from fertilizers causes eutrophication.

At the time of the most recent survey in 2005, Monson Lake was found to have good water clarity and low to moderate nutrient pollution.

Of that, they calculated that $44 million a year is spent just protecting aquatic species from nutrient pollution.

See nutrient pollution for an extended explanation of nutrient remediation.

In addition to nutrient pollution, more toxic agents have drained into the lake from time to time.

- What has worked for your organization, state, or tribe in controlling nutrient pollution?

Excess nutrients, or nutrient pollution, have been summarized as potentially leading to :

Innovative solutions have been conceived to deal with ecological disturbances caused by nutrient pollution, especially in aquatic systems.

Nevertheless, the Dümmer suffers from heavy nutrient pollution caused by intensive agriculture.