Over the last century and a half, groundwaters have become contaminated by a growing number of organic and inorganic substances ranging from petroleum-derived hydrocarbons to radioactive compounds, to cancer-causing hexavalent chromium. The importance of uncontaminated groundwater for agriculture, human consumption, and the environmental health of ...
The papers gathered in this authoritative volume, partly based on presentations by 60 scientists attending a NATO Advanced Research Workshop on Past and Present Water Column Anoxia in Sevastopol, Ukraine, address the entire range of oxygen-deficient conditions and reflect the complexity of the issues governing the formation and persistence of ...
The rate of creation of reactive nitrogen (NR) on the earth has dramatically increased in the last half century mainly due to the production of N-fertilizer through the Haber-Bosch process, fossil fuel combustion, and the cultivation of plants that fix N from the atmosphere. The anthropogenic production of NR has been especially high in developed ...
Environmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and ...
It is a well-known fact that eutrophication of coastal waters causes significant changes in the species composition of the primary producers. Usually a shift from an ecosystem dominated by sea grasses or large brown algae to an ecosystem dominated by fast-growing green algae or phytoplankton is observed. While this shift has been documented in a ...
This book describes the excess supply of nutrients and manure to agricultural lands and the resulting problems of groundwater contamination and surface water eutrophication. It reviews these practices in the main EU countries and in North America and proposes a new sustainable approach for dealing with this environmental deterioration.
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