Analyzing the relationship between water pollution and economic activity for a more effective pollution control policy in Bali Province, Indonesia

Saroj Kumar Chapagain and Geetha Mohan and Andi Besse Rimba and Carolyn Melissa Payus and I. Made Sudarma and Kensuke Fukushi (2022) Analyzing the relationship between water pollution and economic activity for a more effective pollution control policy in Bali Province, Indonesia. Sustainable Environment Research, 32. pp. 1-14. ISSN 2468-2039

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Abstract

An adequate water supply is essential for the continued and sustainable growth of the Balinese economy. In addition to mounting water demand, Bali’s water supply has been constrained by high levels of water pollution. Despite being paid great attention, Bali’s earlier efforts to control water pollution yet to prove effective, mainly owing to their reliance on traditional methods and regulations that focus on water pollution being linked to discrete sets of economic activity (e.g., processing industries, livestock farming, and hotels). However, an economy of a region/country comprises a set of sectoral activities, which are interconnected through supply chains; thus, water pollution could be well explained by examining the entire sectoral economic activities and their environmental performance. Therefore, determining the structural relationships between water pollution and economic activity serves as an important basis for more effective forms of pollution control for the Balinese economy. In this study, accordingly, we employed an environmentally extended input–output model to establish the links between water pollution and the production processes of the entire economy. Using biochemical oxygen demand (BOD) as a proxy for water quality in our analysis, we estimated that 246.9 kt of BOD were produced from Bali’s economic activity in 2007. Further, we identified the chief BOD-emitting sectors and found that intermediate demand and household demand were the major causes of BOD discharge in the economy. We also accounted for the indirect role of each sector in total BOD emissions. Moreover, we categorized the sectors into four groups based on their direct and indirect BOD emission characteristics and offered appropriate policy measures for each group. Managing demand (i.e., lowering household consumption and exports) and shifting input suppliers (i.e., from polluters to non-polluters) are effective measures to control pollution for Categories I and II, respectively; clean production and abatement is advised for Category III; and a hybrid approach (i.e., demand management and abatement technology) is recommended for Category IV.

Item Type: Article
Keyword: Biochemical oxygen demand , BOD , Bali , Environmentally extended input–output modeling , EEIO , Direct pollution , Water policy , Water pollution
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD1-1066 Environmental technology. Sanitary engineering > TD201-500 Water supply for domestic and industrial purposes
Department: FACULTY > Faculty of Science and Natural Resources
Depositing User: SITI AZIZAH BINTI IDRIS -
Date Deposited: 16 Jun 2022 15:13
Last Modified: 16 Jun 2022 15:13
URI: https://eprints.ums.edu.my/id/eprint/32807

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