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What is an emission factor?

April 26, 2017emission Factor

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What is an emission factor?

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An emission factor is used to estimate emissions to the environment. Emission factors are formulae that relate known emission characteristics to other variables that are easier or more economical to monitor than the pollutants themselves. For the NPI, emission factors generally relate the quantity of substances emitted from a source to the facility’s production levels. Emission factors are obtained from US, European, and Australian sources. The NPI Guide contains more detailed information on reporting to the NPI. More about the NPI guide .