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Large Source Of Nitrate, A Potential Water Contaminant, Found In Near-surface Desert Soils

ScienceDaily (March 3, 2008)

Large Source Of Nitrate, A Potential Water Contaminant, Found In Near-surface Desert Soils

ScienceDaily (March 3, 2008)

Soils under desert pavement have an unusually high concentration of nitrate, a type of salt, close to the surface. Vulnerable to erosion by rain and wind if the desert pavement is disrupted, this vast source of nitrate could contaminate surface and groundwaters, posing an environmental risk.

Desert pavement is a naturally occurring, single layer of closely fitted rock fragments. A common land surface feature in arid regions, it has been estimated to cover nearly half of North America’s desert landscapes.

Nitrate, a water soluble nitrogen compound, is a nutrient essential to life. It is also, however, a contaminant. When present in excess in aquatic systems, it results in algal blooms

Story Source

The above story is based on materials provided by University of California - Riverside.

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Page publiée le 5 août 2014