EPA rule reduces pollutants from existing stationary diesel engines

by Jbs022210 a3 — February 24, 2010—The U.S. Environmental Protection Agency (EPA) is setting the first standards that will reduce emissions of formaldehyde, benzene, acrolein and other toxic air pollutants from certain stationary diesel engines. These pollutants are known or suspected to cause cancer or other serious health problems and environmental damage.

The emission limits apply to existing reciprocating internal combustion engines meeting certain criteria for age, size, and use. EPA estimates that more than 900,000 of the engines generate electricity and power equipment at industrial, agricultural and other facilities. The engines also are used in emergencies to produce electricity and pump water for flood and fire control. Emergency engines used at most residences, hospitals, and other institutional facilities, and commercial facilities such as shopping centers, are not covered by this rule.

To meet the emissions requirements, owners and operators of the largest of the engines will need to install emissions controls, such as catalysts, to engine exhaust systems. Emergency engines covered by this rule need to comply with operating requirements that will limit emissions.

EPA will issue final emissions standards for similar existing stationary engines that burn gasoline, natural gas and landfill gas, known as spark ignition engines, by August 10, 2010.