Identifying the flows and stocks of additives in polyvinyl chloride plastics for balancing environmental and economic impacts

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling Pub Date : 2025-02-28 DOI:10.1016/j.resconrec.2025.108213

Kai Zhao , Zhenye Zhang , Yijun Li , Hang Fu , Xiting Peng , Ran Tao , Zhiyuan Li , Weigu Wen , Xin Xie , Shanying Hu

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Abstract

A comprehensive and in-depth study of the flow and stock characteristics of thorough categories of plastic additives is the first step in uncovering the internal mechanisms of chemical problems in plastic pollution. This study documents the material metabolism of 34 plastic additives in PVC plastics in China during 2020 and evaluates the trends when both environmental and economic benefits from these additives are optimized. A total of 8.65 million tons of plastic additives were used in the manufacturing process of PVC plastics, with 3.7 million tons added to the stock of new plastic additives. The research findings reveal significant variability in the distribution characteristics of different types of plastic additives across various types of PVC plastics (standard deviation: 5.6 %-12.1 %). Moreover, the contradiction between the comprehensive environmental impacts and economic benefits of most plastic additives has been confirmed. The optimization results indicate that the improvement in economic efficiency (9 %-14 %) and a reduction in the integrated environmental impact (9 %-19 %) can be achieved simultaneously by optimizing the current usage structure of plastic additives. Therefore, formulating targeted policies to guide the capacity development of different types of plastic additives in future industries would be beneficial. This study aims to provide scientific information and management strategies for chemical issues in plastics.

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来源期刊

Resources Conservation and Recycling 环境科学-工程：环境

CiteScore

22.90

自引率

6.10%

发文量

625

审稿时长

23 days

期刊介绍： The journal Resources, Conservation & Recycling welcomes contributions from research, which consider sustainable management and conservation of resources. The journal prioritizes understanding the transformation processes crucial for transitioning toward more sustainable production and consumption systems. It highlights technological, economic, institutional, and policy aspects related to specific resource management practices such as conservation, recycling, and resource substitution, as well as broader strategies like improving resource productivity and restructuring production and consumption patterns. Contributions may address regional, national, or international scales and can range from individual resources or technologies to entire sectors or systems. Authors are encouraged to explore scientific and methodological issues alongside practical, environmental, and economic implications. However, manuscripts focusing solely on laboratory experiments without discussing their broader implications will not be considered for publication in the journal.