Environmental Studies and Forestry

Self-supplied drinking water in low- and middle-income countries in the Asia-Pacific

T. Foster, C. Priadi, et al.

This study by Tim Foster, Cindy Priadi, Krishna Kumar Kotra, Mitsunori Odagiri, Emily Christensen Rand, and Juliet Willetts reveals that over 760 million people in the Asia-Pacific region rely on self-supplied drinking water, with rural areas being more dependent than urban areas. The dominance of groundwater in South and Southeast Asia, along with rainwater collection in the Pacific, underscores the importance of self-supply in shaping water policies and financing strategies.

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Abstract

This study analyzed 77 datasets from 26 Asia-Pacific countries to quantify the prevalence of self-supplied drinking water. In 2018, >760 million people (31% of the population) relied on self-supply, with annual increases exceeding 9 million. Rural areas showed greater reliance (37%) than urban areas (20%). Groundwater sources dominated in South and Southeast Asia, while rainwater collection was prevalent in the Pacific. The findings highlight the significance of self-supply and its implications for water policy and financing.

Publisher

npj Clean Water

Published On

Jul 12, 2021

Authors

Tim Foster, Cindy Priadi, Krishna Kumar Kotra, Mitsunori Odagiri, Emily Christensen Rand, Juliet Willetts

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