How much pollution does an average car release into the air?

Question

How much pollution does an average car release into the air?

Answer 1

The calculations for Total Annual Pollution Emitted and Fuel Consumed are based on an average annual passenger car mileage of 12,500 miles and an average annual light truck mileage of 14,000 miles. Fuel consumption is based on fleetwide average in-use fuel economy of 21.5 miles per gallon (mpg) for passenger cars and 17.2 mpg for light trucks, as reported in the 19th edition of the "Transportation Energy Data Book," prepared for the U.S. Department of Energy.

Answer 2

Every ounce of fluid you put into the tank ends up in the air as another substance.

How much of that is pollution?  Well, lets put it this way...one man's trash is another man's treasure.

http://www.stuffintheair.com/air-polluti...

Here's a bit more on the subject.