To estimate GHG effects of source reduction, the quality of the material to be source reduced must be known. Effects will be greatest if a product consists only of 100 percent virgin substances. However, in practice, a certain proportion of the material input is from recycled substances. Therefore, the effects will be smaller.
The current mix of virgin and recycled inputs in the manufacture of selected poducts is given in figure 12.1.
LDPE HDPE Phonebooks Textbooks PET
Magazines/Third-class Mail Glass Office paper Steel Cans Aluminium Cans Newspaper Corrugated Cardboard
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