- 行业: Government
- Number of terms: 3992
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The concentration of the pollutant in the air multiplied by the population exposed to that concentration over a specified time period.
Industry:Pollution control
The configuration of a surface, especially the Earth's surface, including its relief and the position of its natural and man-made features.
Industry:Pollution control
The amount of light obscured by particle pollution in the atmosphere. Opacity is used as an indicator of changes in performance of particulate control systems.
Industry:Pollution control
The amount of energy available for doing work. For example, the amount of energy in fuel available for powering a motor vehicle.
Industry:Pollution control
The amount of a pollutant that is absorbed. A level of exposure which is a function of a pollutant's concentration, the length of time a subject is exposed, and the amount of the pollutant that is absorbed. The concentration of the pollutant and the length of time that the subject is exposed to that pollutant determine dose.
Industry:Pollution control
The additional ozone formed in the atmosphere with the incremental addition of a certain amount of a volatile organic compound.
Industry:Pollution control
The air occurring at a particular time and place outside of structures. Often used interchangeably with "outdoor air. " (See also air. )
Industry:Pollution control
Standards established by the United States EPA that apply for outdoor air throughout the country. There are two types of NAAQS. Primary standards set limits to protect public health and secondary standards set limits to protect public welfare. For more information, please go to our AAQS website.
Industry:Pollution control
Substances added to motor vehicle fuel to reduce and prevent deposits in the fuel delivery system and engine intake valves.
Industry:Pollution control
The ability of a chemical or physical agent to produce heritable changes in the DNA of living cells.
Industry:Pollution control
