Appendix B

Pollution Emissions

1. Calculate mpg for vehicle or use average figures:

   Vehicle Type	Miles per Gallon
   Car (new)	26 mpg
   SUV	20 mpg
   Pickup	15 mpg
   Bus	5 mpg
   Semi	5 mpg

2. Record miles traveled.
3. To calculate gas used, divide miles traveled by mpg.
4. Multiply gas used by pollution emitted per gallon:

   	Lbs per gallon	Lbs per hour
   CO2	20	10
   NO	0.04	0.02
   SO2	0.001	0.0005
   CO	0.2	0.1
   HC	0.04	0.02