Modeling Mobile-Source Emissions (2000) / Chapter Skim
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Glossary
Glossary
Pages 226-234
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From page 226... ...
Often used interchangeably with "outdoor air." California Air Resources Board (CARB) A part of the California Environmental Protection Agency whose mission it is to promote and protect public health, welfare and ecological resources through the effective and efficient reduction of air pollutants while recognizing and considering the effects on the economy of the state.
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From page 227... ...
. Transportation conformity demonstrates that plans, programs, and projects approved or funded by the Federal Highway Administration, or the Federal Transit Administration for regionally-significant projects do not create new violations, increase the frequency or severity of existing violations, or delay timely attainment of NAAQS.
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From page 228... ...
Federal Test Procedure (FTP) —A certification test for measuring the tailpipe and evaporative emissions from new vehicles over the Urban Dynamometer Driving Schedule, which attempts to simulate an urban driving cycle.
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—Vehicles that meet voluntary low emissions tailpipe standards that are more stringent than can be mandated by EPA prior to model year 2004. The NLEV program introduces California low emissions cars and light-duty trucks into the North
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Standards set by EPA for the maximum levels of criteria air pollutants that can exist in the outdoor air without unacceptable effects on human health or the public welfare. Nonattainment area- A geographic area in which the level of a criteria air pollutant is higher than the level allowed by the federal standards.
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From page 231... ...
Any material, except uncombined water, that exists in the solid or liquid state in the atmosphere. The size of particulate matter can vary from coarse, wind-blown dust particles to fine particles directly emitted as combustion products or formed through secondary reactions in the atmosphere.
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From page 232... ...
resulting from RFG use in motor vehicles are significantly and consistently lower than such emissions resulting from use of conventional gasolines. The 1990 Clean Air Act Amendments requires sale of reformulated gasoline in the nine areas with the most severe ozone pollution problems.
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The model determines the amount of transportation activity occurring in a region based on an understanding of the daily activities of individuals and employers as well as the resources and transportation infrastructure available to households and individuals when making their daily activity and travel decisions. Transportation Control Measure (T CM)
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From page 234... ...
Simple carbon-containing compounds such as carbon monoxide and carbon dioxide are usually classified as inorganic compounds. A volatile organic compound is a compound that can exist as a gas under typical atmospheric conditions.
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