Glossary
D
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.
The relationship between the dose of a pollutant and the response (or effect) it produces on a biological system.
Solid particulate matter that can become airborne.
E
A nominal blend of 85 volume percent denatured ethanol and 15 volume percent unleaded gasoline that is used in flexible fuel vehicles.
The Cal/EPA Secretary and ARB Chairman created an Economic and Allocation Advisory Committee to advise ARB on the design of a greenhouse gas cap-and-trade program. EAAC evaluated and provided recommendations on the implications of different allowance allocation strategies such as free allocation, auction, or a combination of both. EAAC also provided advice to ARB on its revised AB 32 economic analysis.
The committee was formed as directed by AB 32 to advise ARB on activities that will facilitate investment in and implementation of technological research and development opportunities including, but not limited to, identifying new technologies, research, demonstration projects, funding opportunities, developing state, national and international partnerships and technology transfer opportunities; and, identifying and assessing research and advanced technology investment and incentive opportunities that will assist in the reduction of greenhouse gas emissions. The committee may also advise the ARB on state, regional, national and international economic and technological developments related to greenhouse gas emission reductions.
The committee was formed as directed by AB 32 to advise ARB on activities that will facilitate investment in and implementation of technological research and development opportunities including, but not limited to, identifying new technologies, research, demonstration projects, funding opportunities, developing state, national and international partnerships and technology transfer opportunities; and, identifying and assessing research and advanced technology investment and incentive opportunities that will assist in the reduction of greenhouse gas emissions. The committee may also advise the ARB on state, regional, national and international economic and technological developments related to greenhouse gas emission reductions.
A motor vehicle that uses an electric motor as the basis of its operation. Such vehicles emit virtually no air pollutants. (See also hybrid electric vehicle.)
An air pollution control device that removes particulate matter from an air stream by imparting an electrical charge to the particles for mechanical collection at an electrode. For more information, visit our associated training class on this subject.
For stationary sources, the relationship between the amount of pollution produced and the amount of raw material processed or burned. For mobile sources, the relationship between the amount of pollution produced and the number of vehicle miles traveled. By using the emission factor of a pollutant and specific data regarding quantities of materials used by a given source, it is possible to compute emissions for the source. This approach is used in preparing an emissions inventory. Visit U.S. EPA emission factors, or ARB's emission factors and toxic air contaminants.
An estimate of the amount of pollutants emitted into the atmosphere from major mobile, stationary, area-wide and natural source categories over a specific period of time such as a day or a year. For more information, visit our emissions inventory website.
A rule-making concept whereby approval of a new or modified stationary source of air pollution is conditional on the reduction of emissions from other existing stationary sources of air pollution. These reductions are required in addition to reductions required by best available control technology. For information see our New Source Review Emission Reduction Credit Offsets website.
A non-transferable or tradable allocation of entitlements by a government to an individual firm to emit a specified amount of a substance.
The weight of a pollutant emitted per unit of time (e.g., tons/year).
The maximum amount of a pollutant that is allowed to be discharged from a polluting source such as an automobile or smoke stack.
Released or discharged air contaminants in the ambient air from any source.
The amount of energy available for doing work. For example, the amount of energy in fuel available for powering a motor vehicle.