1970's emissions compared to todays cars

by zim?

As studies and this picture show the emissions of today's cars compared to the past has dramatically improved. "Emissions from an individual car are genually low, relative to the smokestack image many people associate with air pollution." quote from EPA 1994 factsheet. "The Clean Air Act of 1970 gave EPA broud authority to regulate motor vehicle pollution, and the Agency's emission control policies have become progressively more stringent since the early 1970's." another statement from the EPA. In 1980-81 the use of " three-way" catalytic converters generates carbon dioxide and water from carbon monoxide and hydrocarbons. It also generates oxygen and elemental nitrogen from nitrogenoxide.

All information courtesy of the EPA