General

General

General nature or nature terms.

Industry: Natural environment

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General

assay

Natural environment; General

A test for a specific chemical, microbe, or effect.

In ecological risk assessment, an explicit expression of the environmental value to be protected; includes both an ecological entity and specific attributed thereof. entity (e.g. salmon are a valued ...

assimilation

Natural environment; General

The ability of a body of water to purify itself of pollutants.

assimilative capacity

Natural environment; General

The capacity of a natural body of water to receive wastewaters or toxic materials without deleterious effects and without damage to aquatic life or humans who consume the water.

association of boards of certification

Natural environment; General

An international organization representing boards which certify the operators of waterworks and wastewater facilities.

attainment area

Natural environment; General

An area considered to have air quality as good as or better than the national ambient air quality standards as defined in the Clean Air Act. An area may be an attainment area for one pollutant and a ...

attenuation

Natural environment; General

The process by which a compound is reduced in concentration over time, through absorption, adsorption, degradation, dilution, and/or transformation. an also be the decrease with distance of sight ...