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Meta-Analysis of Life Cycle Assessment Studies for Polyethylene Terephthalate Water Bottle System

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  • Yoo-Jin Go

    (Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
    Korea Packaging Center, Korea Institute of Industrial Technology, Bucheon 14449, Republic of Korea
    These authors contributed equally to this work.)

  • Dong-Ho Kang

    (Korea Packaging Center, Korea Institute of Industrial Technology, Bucheon 14449, Republic of Korea
    These authors contributed equally to this work.)

  • Hyun-Jin Park

    (Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea)

  • Jun-Hyuk Lee

    (Korea Packaging Center, Korea Institute of Industrial Technology, Bucheon 14449, Republic of Korea)

  • Jin-Kie Shim

    (Korea Packaging Center, Korea Institute of Industrial Technology, Bucheon 14449, Republic of Korea)

Abstract

The life cycle assessment (LCA) serves as a crucial tool for assessing the environmental impact of products, with recent emphasis on polyethylene terephthalate (PET) bottles. Our meta-analytical review of 14 LCA research papers (2010–2022) on PET bottles, aligned with PRISMA guidelines, spans six phases: raw material production (MP), bottle production (BP), distribution and transportation (DT), collection and transport (CT), waste management (WM), and environmental benefits (EB). Utilizing the global warming potential (GWP) as the indicator, our study harmonized data into a consistent functional unit, revealing an average emission of 5.1 kg CO 2 equivalent per 1 kg of PET bottles. Major contributors to global warming were identified across the MP, BP, and DT phases. While the MP and BP phases exhibited low variability due to uniform processes, the CT, WM, and EB phases displayed higher variability due to scenario considerations. A comparison with Korean environmental product declaration data affirmed the methodology’s practical utility. Our approach offers potential applicability in diverse product category assessments, emphasizing its relevance for informed decision-making in sustainable product development.

Suggested Citation

  • Yoo-Jin Go & Dong-Ho Kang & Hyun-Jin Park & Jun-Hyuk Lee & Jin-Kie Shim, 2024. "Meta-Analysis of Life Cycle Assessment Studies for Polyethylene Terephthalate Water Bottle System," Sustainability, MDPI, vol. 16(2), pages 1-22, January.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:2:p:535-:d:1315101
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    References listed on IDEAS

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    1. Welle, Frank, 2011. "Twenty years of PET bottle to bottle recycling—An overview," Resources, Conservation & Recycling, Elsevier, vol. 55(11), pages 865-875.
    2. Graeme D. Ruxton & Guy Beauchamp, 2008. "Time for some a priori thinking about post hoc testing," Behavioral Ecology, International Society for Behavioral Ecology, vol. 19(3), pages 690-693.
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