What is the percent of all sources of air pollution?

Question

I'm doing a air pollution poster for science class and i was wondering if any of you guys had the percent of air pollution released every year since year 2000. also the percent caused by cars, trucks, green house gases,etc.

Thanx

Answer 1

Erm... I'm not sure, but I think it's 60%

hope this could be helping you.

www.mjbradley.com/documents/CAAprimer....

Answer 2

Carbon Dioxide is 0.0038% of the atmoshpere. We contribute to 3 - 5% of that 0.0038%