Nitrate Contamination of Groundwater
Ground Water Hydrology
Published Online: 15 APR 2005
Copyright © 2005 by John Wiley & Sons, Inc.
How to Cite
Azadpour-Keeley, A. and Keeley, J. 2005. Nitrate Contamination of Groundwater. Water Encyclopedia. 5:322–323.
- Published Online: 15 APR 2005
Groundwater supplies drinking water for half of the people in the country and represents the total water supply for many of the western states. Numerous contaminants are anthropogenic, including petroleum products, chlorinated solvents, and pesticides, but nitrate contamination can be either natural or man-made and is one of the most common chemical contaminants of groundwater. Nitrate levels in uncontaminated groundwater are generally less than 2 mg/L, but levels have been increasing during the past five to six decades in areas where contamination has occurred.
- nitrogen cycle;