Our Air Is Cleaner and Heathier: The Numbers Speak for Themselves

When It Comes to the Air We Breathe, the Numbers Speak for Themselves

Cleaner Air

Since 1970, the number of pollutants released into the air by cars, trucks, busses, trains, and boats, has dropped dramatically.

According to the U.S. Environmental Protection Agency (EPA), which has put a great deal of its focus on improving the air we breathe since its inception, the following has evolved since 1970:

  • Compared to 1970 vehicle models, new cars, SUVs, and pickup trucks are roughly 99 percent cleaner for common pollutants (hydrocarbons, carbon monoxide, nitrogen oxides and particle emissions), while Annual Vehicle Miles Traveled has dramatically increased.
  • New heavy-duty trucks and buses are roughly 99 percent cleaner than 1970 models.
  • Train locomotives are now 90 percent cleaner than pre-regulation (before 1970) locomotives
  • New commercial marine vessels (non-ocean-going) are 90 percent cleaner for particle emissions than in 1970.
  • Sulfur in gasoline has been reduced by 90 percent, and sulfur in diesel fuel has been reduced by 99 percent, from pre-regulation levels.