Emissions Standards Resources

Health and Environment Benefits for All Tiers

Tier 4 is more than just emissions. It's about changing the world for the better. Doosan is working hard with the entire equipment industry to do our part.

  • Tier 4 standards reduce emissions from a typical non-road diesel engine by up to two-thirds.
  • The EPA estimates that in 2010, NOx emissions will be reduced by about a million tons per year - the equivalent of taking 35 million passenger cars off the road.
  • Respiratory problems and disease caused by ozone and PM will decline - as will acid rain, crop damage and smog.
  • By 2030, the EPA estimates that 12,000 deaths, 8,900 hospitalizations and one million lost work days will be prevented.