Accounting global grey water footprint from both consumption and production perspectives

JOURNAL OF CLEANER PRODUCTION

卷:225

Article

Zhao, Xu¹  Liao, Xiawei²  Chen, Bin³  Tillotson, Martin R.⁴  Guo, Wei⁵  Li, Yiping¹ 

[1] Hohai Univ, Coll Environm, Minist Educ, Key Lab Integrated Regulat & Resource Dev Shallow, Nanjing 210098, Jiangsu, Peoples R China

[2] Peking Univ, Shenzhen Grad Sch, Sch Environm & Energy, Shenzhen 518055, Peoples R China

[3] Beijing Normal Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100875, Peoples R China

[4] Univ Leeds, Sch Civil Engn, Water Leeds, Leeds LS2 9JT, W Yorkshire, England

[5] Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China

关键词: Global assessment;    Input-output analysis;    Virtual water trade;    Water pollution outsourcing;   

DOI  :  10.1016/j.jclepro.2019.04.037

来源: Elsevier

【 摘 要 】

Grey water footprint (GWF) accounting has previously been conducted at the global level using a bottom-up approach but lacking detailed industrial information. Here we applied a multi-region input-output approach based on the World Input-Output Database (WIOD) to quantify global GWF of 40 countries/regions with 35 economic sectors. The GWF from both the production perspective (GWFP), and the consumption perspective (GWFC) are quantified. The results show that the global GWFP/GWFC was 1507.9 km(3) in 2009. Except for the Agriculture, Hunting, Forestry and Fishing sector, the industrial sectors with the largest GWFC were Food, Beverages and Tobacco, Construction, Chemicals and Chemical Products, and Textiles and Textile Products. The BRIC countries (Brazil, Russia, India, China) had a larger GWFP than their GWFC, which accounted for over half of global GWFP (53.6%), and their GWFP was mainly generated from the production of domestic final demand. In contrast, the OECD29 and EU27 groups of countries i.e. the country groups consisting mainly of economically advanced nations, had larger GWFC than their GWFP. Overall, the OECD29 and EU27 outsourced 134.8 km(3) and 64.4 km(3) of their grey water respectively, mostly to large newly advanced economies such as the BRIC group of countries, which, in turn, were collectively outsourcing 112 km(3) of grey water. Quantitative approaches are thus suggested for development, aimed at shared responsibility for water pollutant discharge among poor exporters and wealthy consumers. (C) 2019 Elsevier Ltd. All rights reserved.

【 授权许可】

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