Interregional spillover effect of PM2.5 emissions on Northeast China through the national supply chain

Yating Liu, Delin Fang and Bin Chen

Applied Energy, 2021, vol. 303, issue C, No S030626192101031X

Abstract: The booming economy has worsened air pollution problems via energy-related production and consumption activities. Increasing cross-regional economic trading activities have also led to unexpected environmental externalities from PM2.5. To better understand the features of the interregional environmental impact of PM2.5 emissions, an integrated three-dimensional spillover effect assessment framework was proposed based on multiregional input–output analysis (MRIOA), the Greenhouse Gas-Air Pollution Interactions and Synergies (GAINS) model and the integrated exposure–response (IER) model. Taking Northeast China as a case study, we inventoried the sectoral PM2.5 emissions and additional PM2.5 emissions of supplying intermediate products/services to identify the direct PM2.5 spillover effect embodied in economic trade. Then, the demand-driven spillover effect was assessed via the PM2.5 emissions and flows driven by the final demand based on MRIOA at sectoral and regional levels. Finally, the PM2.5 spillover effect on public health in the target area was measured by the quantification of PM2.5-related mortality and economic loss based on the GAINS and IER models. The results showed that energy-related sectors like the petroleum and gas sector were among the prominent sectors influenced by the spillover effect of PM2.5. The spillover effect of increasing PM2.5 emissions in Northeast China was mainly caused by the final demand of developed areas such as Beijing, Tianjin, Shanghai, Zhejiang and Guangdong. The mortality, extra medical cost and labor loss in local areas have increased by 20–25% due to embodied PM2.5 emissions induced by non-Northeast China. The proposed three-dimensional spillover effect assessment framework could shed insight on the potential impacts of economic trade on local air quality and human health, thus shaping PM2.5 emission mitigation strategies from a cross-regional perspective.

Keywords: Spillover effect; PM2.5 emission; Health loss; Multiregional input–output analysis (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1016/j.apenergy.2021.117670

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