Green development and co-benefits analysis of a typical chemical industrial park under pollution and carbon reduction and zero-waste city policies.

Industrial parks, under the framework of the "enterprise relocation to parks" policy, have become a crucial cornerstone of China's industrial green development and play a key role in reducing pollution and mitigating carbon emissions . Taking a chemical industrial park in Shanghai as a case study, this study employed the Tapio-CCD model to explore the synergistic relationships among pollutants, and between the economy and pollutants. Additionally, the DDF-Tobit model was used to investigate the impact of Zero Waste City (ZWC) policy and the synergy of carbon and pollution control on green development in the chemical industrial park. Research indicated that high-tech enterprises are more likely to achieve decoupling between economic growth and environmental impact. In contrast, chemical industrial parks, which rely on fossil energy, face challenges in decoupling economic growth from greenhouse gas emissions. Furthermore, the annual synergy between air pollutants and greenhouse gas emissions in these parks ranges from 0.356 to 0.372, indicating a moderate level of correlation. The decoupling of air pollutants and hazardous waste is attributed to clean air policies and hazardous waste management platforms. This study evaluates the efficiency of the industrial park in terms of resource input, environmental governance, and economic output. The results indicate that the green development efficiency of chemical industrial parks is relatively low, with an average efficiency ranging from 0.461 to 0.74, highlighting the importance of better resource allocation and industrial structure adjustment.