Im in class right now doing a project on car poullution?

Question

i need some facts and stuff about it

like how could we improve it?

Answer 1

First you need to understand the reaction of combustion.  Gas has a non constant hydrocarbon form so I will use X/y

This is from memory so you should confirm

CxHy+A/F(O2+3.76 N2) <=> CO2+H2O + N2 +Byproducts.  

A/F is the air to fuel ratio

I hope I do not have this backwards.

If the A/F<1 The we will see hydrocarbons and NOx as the by prodicts.

If the A/F>1 then you have to worry about CO and OH.

To Combat this we install a cadylitic (sp) convertor.  It limits the by products.  

We also have an O2 sensor that will keep us at 1 to 1.

The closer a car keeps its A/F ratio to 1 the better.

Cooling the exhaust faster will also help but it is a littlbe bit impracticle.

Today to much talk goes to CO2, that is not what I worry about.  I worry about the junk on the end.

Answer 2

Modern cars that are properly maintained produce almost no pollution.  More than 99% of tailpipe emissions are harmless, consisting of water vapour and carbon dioxide.  The trace amounts of pollutants include:

Unburnt and incompletely burnt fuel

Nitrogen oxides

Carbon monoxide

Answer 3

-Buy hybrid cars

-Car pooling

-Only use cars if necessary

-Take a bus if possible (car pooling)