EC238 Chapter Notes - Chapter 11: Emission Standard, Heat Transfer Coefficient, Tax

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3 Oct 2013
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Any action you can tin of could be the subject of a standard, but in environmental matters there are three main types of standards: ambient, emission, and technology. Ambient standard - a never-exceed level for a pollutant in the ambient environment. Ambient standards are normally expressed in terms of average concentration levels over some period of time. Emission standards are never-exceed levels applied directly to the quantities of emissions coming from pollution sources. Emission standards can be set on a wide variety of different bases ex. Km/hour, parts per million, % removal of waste material before discharge. Emission standards are a type of performance standard. The requirement that cars be equipped with seat belts is a technology standard. A performance standard, sets a constraint on some performance criterion and then allows people to choose the best means of achieving it.

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