The effect of the introduction of low-emission vehicles on air quality improvement in the South Coast Air Basin (SCAB) around the Greater Los Angeles area in California is studied using a three-dimensional numerical simulation model which solves the urban-scale atmospheric diffusion equations and photochemical reactions. The results indicate that replacing all the light duty vehicles (LDVs) with ZEV, which satisfy the strictest regulations, will reduce the total mass emission from automobiles (CO by 83%, NOx by 66%, and ROG by 85%). Ozone concentration over the SCAB is also shown. Replacement of LDVs with 1994 regulation level vehicles, TLEV, LEV and ZEV, will reduce the maximum ozone concentration by 14%, 17%, 18% and 20%, respectively.
JSME international journal. Ser. 1, Solid mechanics, strength of materials
JSME international journal. Ser. A, Mechanics and material engineering
JSME international journal. Ser. 3, Vibration, control engineering, engineering for industry
JSME international journal. Ser. C, Dynamics, control, robotics, design and manufacturing
JSME International Journal Series A Solid Mechanics and Material Engineering
JSME International Journal Series C Mechanical Systems, Machine Elements and Manufacturing