1. Implementation project (I) of the quality assurance system for air monitoring network R.O.C.;ABB Environmental Services Inc.;EPA contract NO. EPA-80-L102-09-11,1991
2. Total air pollutants emission investigation and reduction planning for the Northern, Central and Southern part of Taiwan, R.O.C.;ICF Kaiser Engineers Inc.;EPA contract No. EPA-79-002-48-216,1992