Source reduction, also known as waste prevention or pollution prevention, is the elimination of waste before it is created. It is an effective technique toward waste minimization. (Source: Gaurav Singh, P.K.S. Yadav, 'Hazardous waste characteristics and standard management approaches, Hazardous Waste Management, Elsevier, 2022, ed. Deepak Yadav, Pradeep Kumar, Pardeep Singh, Daniel A. Vallero, pp. 145-164)