4.7 Article

Linkage analysis of economic consumption, pollutant emissions and concentrations based on a city-level multi-regional input output (MRIO) model and atmospheric transport

Journal

JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 270, Issue -, Pages -

Publisher

ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2020.110819

Keywords

Atmospheric transport; Beijing-Tianjin-Hebei; Concentration; Emissions; MRIO; WRF/CALPUFF

Funding

  1. National Natural Science Foundation of China [41871211, 71974141]
  2. Natural Science Foundation of Tianjin City [16JCQNJC08900]
  3. National Key Research and Development Program of China [2018YFC0213600]

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China is experiencing serious atmospheric pollution, which also exhibits significant spatial heterogeneity. The Chinese government has implemented targeted pollution control measures at the city level, emphasizing coordination among cities to prevent and control air pollution in key regions such as Beijing-Tianjin-Hebei (BTH) urban agglomeration. This study combined an inter-city multi-regional input-output (MRIO) model with an air quality dispersion model consisting of a weather research and forecasting (WRF) model and the CALPUFF model (WRF/CALPUFF) to study the inter-city economic consumption, pollutant emission and concentration among 13 cities in BTH urban agglomeration. NOx is chosen as an example. The combined effects of economic linkage and atmospheric transport show that NOx concentrations in cities in the BTH urban agglomeration are attributable to three consumption sources: a local contribution from the target city's own local economic consumption (average, 25%), and non-local consumption contributions, including other cities in the BTH urban agglomeration (average, 36%) and regions outside of BTH (average, 39%). Compared with the contributions to NOx concentrations calculated using only the MRIO model or atmospheric transport stimulation model, the results of this paper quantify that the consumption outside of a city could provide a greater impact on the city's air quality due to the combined effects of economic linkage and atmospheric transport. To avoid negative impacts of emission reduction targets on economic consumption, governmental regional pollution control policies should consider the combined effects of economic linkage and atmospheric transport.

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