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Two-pathway perspective for heavy metal emission mitigation: A case study of Guangdong Province, China

Zheng, Boyue, Huang, Guohe, Liu, Lirong, Zhai, Mengyu and Li, Yu (2020) Two-pathway perspective for heavy metal emission mitigation: A case study of Guangdong Province, China Science of The Total Environment, 735, 139583.

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Heavy metal emissions have attracted much worldwide attention for its recalcitrance and persistence. In this study, a two-pathway environmental simulation model is developed to uncover heavy metal emissions as induced by intra-provincial production and extra-provincial investments, filling the gap of mitigating heavy metal emissions from separate pathway. This developed model is applied to Guangdong Province, China targeting on the mitigation of Hg, As, Cd, Cr, and Pb emissions. Additionally, emission reduction simulations are implemented on the basis of key sector identification. The effects of intra-provincial production reduction are more notable than those of extra-provincial investment reduction. In addition, mitigation of Hg and As emissions can be achieved through the reduction in both intra-provincial production and extra-provincial investment. In the contrast, it is not expected that the reduction of extra-provincial investment be duo to the emission mitigation of Cd, Cr and Pb. Moreover, an examination of five optimized scenarios reveals that the most remarkable emission mitigation pathway is the reduction of intra- and extra-provincial activities. This study is an indispensable reference for multi-pathway emission mitigation for heavy metals.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Centre for Environment and Sustainability
Authors :
Zheng, Boyue
Huang, Guohe
Zhai, Mengyu
Li, Yu
Date : 21 May 2020
Funders : National Key Research and Development Plan, Natural Sciences Foundation, Western Economic Diversification, Natural Science and Engineering Research Council of Canada
DOI : 10.1016/j.scitotenv.2020.139583
Grant Title : National Key Research and Development Plan
Copyright Disclaimer : © 2020 Published by Elsevier B.V.
Uncontrolled Keywords : Heavy metal emissions; Scenario simulation; Input-output analysis; Emission embodied in bilateral trade;
Additional Information : Embargo OK Metadata OK No Further Action
Depositing User : James Marshall
Date Deposited : 13 Jul 2020 13:08
Last Modified : 13 Jul 2020 13:08

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