The US Environmental Protection Agency (US EPA) is proposing to set emission limits for formaldehyde, benzene, acrolein, and other air toxics from certain stationary diesel and gas-fired internal combustion (IC) engines. In 2008, over 1 million of these engines generated electricity, powered equipment, and operated during emergencies at industrial, agricultural, and other facilities. The rule would apply to engines that are:
- Smaller than or equal to 500 hp that were constructed or reconstructed before June 12, 2006; or
- Larger than or equal to 500 hp that were constructed or reconstructed before December 19, 2002.
To meet the proposed emissions requirements, owners and operators of these engines would need to install filters or catalysts to engine exhaust systems. US EPA estimates that this rule would reduce air toxics emissions by 13,000 tons per year, particle pollution by 2,600 tons, and carbon monoxide emissions by 510,000 tons when fully implemented in 2013.
The public comment period will be open for 60 days upon publication in the Federal Register. For more information see:
