Vērtējums:
Publicēts: 04.06.2003.
Valoda: Angļu
Līmenis: Vidusskolas
Literatūras saraksts: Nav
Atsauces: Nav
  • Eseja 'Nitrates in Water by Danny Lewis', 1.
  • Eseja 'Nitrates in Water by Danny Lewis', 2.
  • Eseja 'Nitrates in Water by Danny Lewis', 3.
Darba fragmentsAizvērt

Nitrates contamination of the world's underground water supply poses as a potentially serious health hazard to the human inhabitants on earth.
High nitrate levels found in well water has been proven to be the cause for numerous health conditions across the globe. If we intend to provide for the future survival of man, and life on planet earth, we must take action now to assure the quality of one of our most precious resources, our underground water supply.
Ground water can be defined as the water stored in the open spaces
within underground rocks and unconsolidated material (Monroe and Wicander 420). Ground water is one of the numerous parts that make up the hydrologic cycle. The primary source of water in underground aquifers is precipitation that infiltrates the ground and moves through the soil and pore spaces of rocks (Monroe and Wicander 420). There are also other sources that add water to the underground aquifer that include: water infiltrating from lakes and streams, recharge ponds, and wastewater treatment systems. As groundwater moves through the soil, sediment, and rocks, many of its impurities are filtered out. Take note, however, that some, not all, soils and rocks are good filters.

Atlants