can u help me with statistics on truvk vs car pollution?

Answer 1

http://www.ucsusa.org/clean_vehicles/vehicles_health/light-trucks-and-air-pollution.html

"This trend toward light trucks has resulted in significant erosion in the benefits of government efforts to reduce air pollution from motor vehicles. UCS analysis shows that the light-truck loopholes, coupled with booming sales of sport-utility vehicles, have resulted in an additional 5,000 tons per day of smog-forming pollutants in our air during the summer smog season. This is equivalent to the pollution from 40 million cars, five times the number of cars sold last year."