将添加剂纳入塑料生命周期评估第一部分:机械回收研究综述

IF 4.9 3区 环境科学与生态学 Q2 ENGINEERING, ENVIRONMENTAL Journal of Industrial Ecology Pub Date : 2024-08-16 DOI:10.1111/jiec.13542
H. Logan, T. F. Astrup, A. Damgaard
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引用次数: 0

摘要

随着欧盟向循环使用塑料过渡,强有力的生命周期评估对于了解这种新经济并为其做好准备至关重要。添加剂对所有塑料的生产都至关重要,但据报道,十年前的塑料材料生命周期评估(LCAs)中却没有添加添加剂。本研究通过调查塑料添加剂的影响是否已被纳入再生塑料材料的生命周期评估中,或是否仍未被纳入,对之前的研究进行了拓展。在第一部分中,我们对包括机械回收途径在内的 93 项塑料生命周期评估进行了系统性文献综述,并区分了(i)文中讨论和(ii)每项研究的生命周期清单(LCI)中是否考虑了塑料添加剂的影响。然后,我们比较了语料库中包含添加剂的类型,以确定是作者的知识还是数据的可用性决定了塑料生命周期评估中是否包含添加剂。我们发现,由于 LCI 披露透明度低或对添加剂的披露过于笼统,整个语料库中缺少对具体添加剂影响的数据披露和详细讨论。缺乏详细、透明的讨论和披露表明,再生塑料材料的生命周期评估中缺少对添加剂影响的分析,导致对其影响的分析不完整。如果不加以解决,这种缺失可能会导致不准确或不完整的循环塑料材料生命周期评估。在第二部分中,我们将评估一般性披露的质量,并探讨数据库质量和透明度如何导致生命周期评估中的添加剂遗漏。
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Additive inclusion in plastic life cycle assessments part I: Review of mechanical recycling studies
As the European Union transitions to the circular use of plastics, robust life cycle assessments are crucial in understanding and preparing for this new economy. Additives are essential to the production of all plastics but were reported as missing from life cycle assessments (LCAs) of plastic materials a decade ago. This study expands upon previous research by investigating if plastic additive impacts are now included in LCAs of recycled plastic materials or if they are still absent. In part I, we conduct a systematic literature review of 93 LCAs on plastics, including mechanical recycling pathways, and distinguish if plastic additive impacts are considered in (i) in‐text discussions and (ii) the life cycle inventories (LCIs) of each study. We then compare the types of additive inclusion within the corpus to ascertain whether author knowledge or data availability dictates additive inclusion in plastic LCAs. We find that data disclosure and detailed discussions of specific additive impacts are missing across the corpus due to poor transparency in LCI disclosure or overly generic disclosures of additives. The lack of detailed and transparent discussions and disclosure indicates that additive impacts are missing from LCAs of recycled plastic materials, leading to incomplete analyses of their impacts. Until addressed, such a gap may lead to inaccurate or incomplete circular plastic material LCAs. In part II, we assess the quality of generic disclosures and explore how database quality and transparency have contributed to additive omissions in LCAs.
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来源期刊
Journal of Industrial Ecology
Journal of Industrial Ecology 环境科学-环境科学
CiteScore
11.60
自引率
8.50%
发文量
117
审稿时长
12-24 weeks
期刊介绍: The Journal of Industrial Ecology addresses a series of related topics: material and energy flows studies (''industrial metabolism'') technological change dematerialization and decarbonization life cycle planning, design and assessment design for the environment extended producer responsibility (''product stewardship'') eco-industrial parks (''industrial symbiosis'') product-oriented environmental policy eco-efficiency Journal of Industrial Ecology is open to and encourages submissions that are interdisciplinary in approach. In addition to more formal academic papers, the journal seeks to provide a forum for continuing exchange of information and opinions through contributions from scholars, environmental managers, policymakers, advocates and others involved in environmental science, management and policy.
期刊最新文献
Issue Information, Cover, and Table of Contents Prospective life cycle assessment of climate and biodiversity impacts of meat‐based and plant‐forward meals: A case study of Indonesian and German meal options Unpacking the path toward a sustainable circular economy through industrial ecology An integrated urban metabolism and ecosystem service assessment: The case study of Lima, Peru Additive inclusion in plastic life cycle assessments part I: Review of mechanical recycling studies
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