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ボトルウォーターのライフサイクル炭素排出と排出削減対策

Life Cycle Carbon Emissions and Emission Reduction Measures for Bottled Water (原題)

Jiaxing Li

Applied and Computational Engineering📚 査読済 / ジャーナル2026-08-24#炭素会計Origin: Global経営インパクト: コスト削減対象セクター: beverage
DOI: 10.54254/2755-2721/2026.ch36320
原典: https://doi.org/10.54254/2755-2721/2026.ch36320

🤖 gxceed AI 要約

日本語

本レビューは、ボトルウォーターのライフサイクル炭素排出に関する複数のLCA研究を統合し、主要な排出ホットスポット（PET樹脂製造、ボトル製造、輸送、電力使用など）を特定。包装軽量化、リサイクルPET利用、輸送最適化、再生可能エネルギー導入などの削減策とそのトレードオフを評価している。

English

This review synthesizes multiple LCA studies on bottled water's life cycle carbon emissions, identifying key hotspots such as PET resin production, bottle manufacturing, transportation, and electricity use. It evaluates reduction measures like packaging lightweighting, recycled PET, transport optimization, and renewable energy, highlighting trade-offs and context-dependent outcomes.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本では、飲料業界のサプライチェーン排出削減が重要であり、PETボトルのリサイクルや軽量化は業界の取り組みと直結する。SSBJ開示やScope 3算定の実務に参考となる。

In the global GX context

Globally, this review supports corporate Scope 3 accounting and product-level carbon footprinting, aligning with ISSB and CSRD disclosure requirements. It provides a consolidated view of mitigation options for the beverage sector, relevant for transition planning and circular economy strategies.

👥 読者別の含意

🔬研究者:LCA研究の統合的な知見と排出ホットスポットの整理に有用。

🏢実務担当者:飲料メーカーのサプライチェーン排出削減策の検討に活用できる。

🏛政策担当者:包装材やリサイクル政策の評価に示唆を与える。

📄 Abstract（原文）

Bottled water is a widely consumed product around the world, but its potential impact on the environment can be caused by its packaging materials, production processes, transportation and end-of-life management. This review is based on several LCA studies in recent years and discussed life cycle carbon emissions and emission reduction measures for bottled water. The paper first summarises the LCA accounting framework for bottled water, including functional units, system boundaries, life cycle inventory and carbon footprint assessment. The review then identifies major carbon emission hotspots and discusses possible reduction measures and their trade-offs. Existing studies presented that PET resin production, bottle manufacturing, packaging-related inputs, electricity use, transportation and post-consumer treatment are likely to be the main sources of the carbon footprint from bottled water. While packaging optimisation and lightweighting can reduce material demand, it is also important to ensure the quality of product protection and transport performance. Recycled PET and bottle-to-bottle recycling can lower the demand on virgin PET, although the overall performance is determined by collection quality, sorting efficiency and food-grade recycling capacity. Transportation optimisation, renewable energy use and alternative packaging materials may also play an important role in emissions mitigation, but their actual results vary under different circumstances.

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