Waste import ban and water pollution: Evidence from rivers in Guangdong Province, China

IF 6.4 Q1 ENVIRONMENTAL SCIENCES
Zhi Min Zhang, Chengzheng Yu, Jingting Li
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引用次数: 0

Abstract

This study examines the effects of China’s 2018 ban on waste imports on water quality in Guangdong Province. Using a difference-in-differences approach, we explore variations in both time and waste imports across different river sections before and after the policy implementation. The findings indicate that regions with pollution permits experienced greater improvements in water quality after the policy implementation. The ban led to significant reductions in the concentrations of mercury (13.67 %,), lead (46.32 %), copper (46.21 %), and zinc (28.15 %). These effects were particularly evident in areas with weaker environmental regulations and limited capacity for waste processing. Further analysis reveals that the reduced industrial production and stronger regulatory enforcement are the main mechanisms driving the policy impact on the improvement of water quality.
废物进口禁令与水污染:来自中国广东省河流的证据
本研究考察了中国2018年禁止废物进口对广东省水质的影响。采用差异中的差异方法,我们探讨了政策实施前后不同河段时间和废物进口量的变化。研究结果表明,有污染许可证的地区在政策实施后水质改善更大。这一禁令显著降低了汞(13.67%)、铅(46.32%)、铜(46.21%)和锌(28.15%)的浓度。这些影响在环境条例较弱和废物处理能力有限的地区尤其明显。进一步分析表明,工业生产的减少和监管力度的加强是推动政策对水质改善影响的主要机制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Resources, conservation & recycling advances
Resources, conservation & recycling advances Environmental Science (General)
CiteScore
11.70
自引率
0.00%
发文量
0
审稿时长
76 days
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