Glossary B

The Environmental Glossary. Letter B +++ 'Soil', 'Biological Integrity', 'Plant'
A Back Pressure is a pressure that can cause water to Backflow into the water supply when a user's waste water system is at a higher pressure than the public system.

A Backflow /Back Siphonage is a reverse flow condition created by a difference in water pressures that causes water to flow back into the distribution pipes of a drinking water supply

Backflow is a reverse flow in water pipes.

- Background: A background (radiation) is Natural radiation caused by sun exposure, cosmic rays from space, and radioactive elements found in the earth's crust.

A Background concentrations: is In this context, EPA uses background concentrations to mean the contributions to outdoor Air Toxics concentrations resulting from natural sources, persistence in the environment of past years' emissions and long-range transport from distant sources.

A Background count rate is the counting rate obtained on a given instrument with a background counting sample. Typical reference background counting samples are:

Background extinction is the normal extinction of various species as a result of changes in local Environmental conditions. Compare mass depletion, mass extinction.

A Background Level is
1. The Concentration of a substance in an Environmental media (air, water, or soil) that occurs naturally or is not the result of human activities.
2. In

The Background radiation is the radiation arising from radioactive material other than that under consideration.

A Backgrounding is Growing program for Feeder cattle from the time calves are weaned until they are on a finishing ration in the feedlot.

Related Articles

Utility at■■■■■
In economics, utility is a representation of preferences over some set of goods and services. Preferences . . . Read More
Weight at■■■■
In science and engineering, the weight of an object is usually taken to be the force on the object due . . . Read More
Power ■■■■
Power: ; - In an environmental context, "power" refers to the capacity to generate and distribute energy. . . . Read More
Stationary at■■■■
Stationary: In the industrial or industry context, "stationary" refers to equipment or machinery that . . . Read More
Resource at■■■■
A resource is a source or supply from which benefit is produced. Typically resources are materials, money, . . . Read More
Panel at■■■■
- In an industrial or industry context, a panel refers to a flat and usually rectangular component, typically . . . Read More
Wind at■■■■
Wind is the flow of gases on a large scale. On the surface of the Earth, wind consists of the bulk movement . . . Read More
Utility-interactive ■■■■
An Utility-interactive is a power system which interacts with the utility grid (mains), taking power . . . Read More
Steel ■■■
In the environmental context, "steel" refers to a versatile and widely used material that has both positive . . . Read More
Capacity ■■■
In the environmental context, "capacity" generally refers to the ability of natural and social systems . . . Read More