Abstract
This paper describes the relation between composition of motor gasoline, especially aromatic and olefin contents, and air-pollutants in automotive emission, that is carbon mono-oxide, hydrocarbon, nitrogen oxides, polynuclear aromatics, aldehyde, phenol, sulfur oxides and so on.
It is summaried as follows.
Though compositions of motor gasolines are changed more or less, air pollutants from automotive emission and their photochemical reactivety are scarcely changed. By use of emission control device, the effect of composition of gasoline is very small.
Summary of lead phase-out plan of motor gasoline, which is carring into at present, is described. It is shown that composition of gasoline is scarecely changed by lead phase out of motor gasoline.
