- Industry: Government
- Number of terms: 3992
- Number of blossaries: 2
- Company Profile:
The middle value in a population distribution, above and below which lie an equal number of individual values; midpoint.
Industry:Pollution control
The maximum amount of a pollutant that is allowed to be discharged from a polluting source such as an automobile or smoke stack.
Industry:Pollution control
The layer of the Earth's atmosphere above the stratosphere and below the thermosphere. It is between 35 and 60 miles from the Earth.
Industry:Pollution control
The layer of the Earth's atmosphere above the troposphere and below the mesosphere. It extends between 10 and 30 miles above the Earth's surface and contains the ozone layer in its lower portion. The stratospheric layer mixes relatively slowly; pollutants that enter it may remain for long periods of time.
Industry:Pollution control
The layer of the Earth's atmosphere nearest to the surface of the Earth. The troposphere extends outward about five miles at the poles and about 10 miles at the equator.
Industry:Pollution control
The lowest concentration of a substance that can reliably measured.
Industry:Pollution control
The haze produced by a multitude of sources and activities which emit fine particles and their precursors across a broad geographic area. National regulations require states to develop plans to reduce the regional haze that impairs visibility in national parks and wilderness areas.
Industry:Pollution control
The highest daily amount of a substance that may be consumed over a lifetime without adverse effects.
Industry:Pollution control
The intentional use of fire for vegetation management in areas such as agricultural fields, orchards, rangelands, and forests. The regulation of agricultural burning is described in the Agricultural Burning Guidelines, Title 17, California Code of Regulations. For more information, please go to our smoke management program website.
Industry:Pollution control
The gaseous phase of liquids or solids at atmospheric temperature and pressure.
Industry:Pollution control
