La sua squadra di ricercatori ha rinvenuto tracce di metalli pesanti e diossina nell'aria, nei pressi degli stabilimenti di Six Naphtha Cracking Formosa Plastic Group. ###>His team found that heavy metals and dioxins were being released in to the air, close to the Formosa Plastic Group (FPG)'s Six Naphtha Cracking plant. Dr. Tsuang presented his findings at several expert conferences held by the Environmental Protection Agency (EPA.)