Source reduction(源削减) ◆ Definition Source reduction, also known as waste prevention or pollution prevention is the elimination or reduction of waste before it is created. It involves the design, manufacture, purchase or use of materials and products to reduce the amount or toxicity of what is thrown away The need of source reduction (1)Shortage of suitable landfill space; In many areas, no suitable land is available for landfills development (2)The development of new landfill site is expensive; New landfills often resisted due to public concerns over groundwater contamination odors and truck traffic.Source reduction （源削减） Source reduction, also known as waste prevention or pollution prevention, is the elimination or reduction of waste before it is created. It involves the design, manufacture, purchase or use of materials and products to reduce the amount or toxicity of what is thrown away. ◆ Definition ◆ The need of source reduction (1) Shortage of suitable landfill space; In many areas, no suitable land is available for landfills development. (2) The development of new landfill site is expensive; New landfills often resisted due to public concerns over groundwater contamination, odors, and truck traffic;