I agree...and "I'll" come back and quibble that the amount of hydrocarbons "flashed" from evaporation pales in comparison to those released when fuel is burned.
The study basically showed that 1/3-1/2 of the total vehicles' HC emissions were from evaporative sources.
Interestingly, California's emission inventory data shows that light-duty auto evap hydrocarbon emissions are slightly greater than those from exhaust.
