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The Environmental Protection Agency (EPA) today issued a final rule setting standards to reduce emissions of formaldehyde, benzene, acrolein and other toxic air pollutants from an estimated 900,000 stationary diesel engines.

The engines are used primarily to generate electricity and power equipment at industrial, and other facilities.

They also are used in emergencies to produce electricity and to pump water for flood and fire control.

The new emission limits apply to existing diesel engines meeting certain criteria for age size and use.

To meet the new requirements, owners and operators of the largest of the engines will be required to install emissions controls such as catalysts to emission exhaust systems.

The rule does not apply to emergency engines used at most residences, hospitals and other institutional facilities and commercial facilities such as shopping centers.

Related:
Reciprocating engines – EPA fact sheet

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