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LONDON – Environmental impacts were found to be reduced by up to 48 per cent for recycled polyester produced from textile waste compared to recycled polyester produced with bottle chips. Researchers used life cycle assessment (LCA) methodology to compare the environmental loads of the two kinds of recycled polyester. Eight environmental impact indicators were evaluated to characterize climate change, energy depletion, and toxicity to humans and ecology.

The researchers used a cradle-factory gate system boundary, assessing issues such as the production of upstream feedstock and energy for all industrial chemicals, and additives used in the correlative parts of fabrication steps for producing one tonne of recycled polyester.

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