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Water safety and inequality in access to drinking-water between rich and poor households.

Yang, H, Bain, RE, Bartram, J, Gundry, S, Pedley, S and Wright, J (2012) Water safety and inequality in access to drinking-water between rich and poor households. Environ Sci Technol.

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Abstract

While water and sanitation are now recognized as a human right by the United Nations, monitoring inequality in safe water access poses challenges. This study uses survey data to calculate household socio-economic-status (SES) indices in seven countries where national drinking-water quality surveys are available. These are used to assess inequalities in access as indicated by type of improved water source, use of safe water and a combination of these . In Bangladesh, arsenic exposure through drinking-water is not significantly related to SES (p=0.06) among households using tubewells, whereas in Peru, chlorine residual in piped systems varies significantly with SES (p<0.0001). In Ethiopia, Nicaragua and Nigeria, many poor households access non-piped improved sources, which may provide unsafe water, resulting in greater inequality of access to 'safe' water compared to 'improved' water sources. Concentration indices increased from 0.08 to 0.15, 0.10 to 0.14, and 0.24 to 0.26 respectively in these countries. There was minimal difference in Jordan and Tajikistan. Although the results are likely to be underestimates as they exclude individual-level inequalities, they show that use of a binary 'improved' / 'unimproved' categorization masks substantial inequalities. Future international monitoring programmes should take account inequality in access and safety.

Item Type: Article
Authors :
AuthorsEmailORCID
Yang, HUNSPECIFIEDUNSPECIFIED
Bain, REUNSPECIFIEDUNSPECIFIED
Bartram, JUNSPECIFIEDUNSPECIFIED
Gundry, SUNSPECIFIEDUNSPECIFIED
Pedley, SUNSPECIFIEDUNSPECIFIED
Wright, JUNSPECIFIEDUNSPECIFIED
Date : 31 December 2012
Identification Number : https://doi.org/10.1021/es303345p
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 13:43
Last Modified : 28 Mar 2017 13:43
URI: http://epubs.surrey.ac.uk/id/eprint/745819

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