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Microbiological quality and handling practices of street-vended sachet drinking water in Mwanza, Malawi

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conference contribution
posted on 08.11.2018, 11:02 authored by Davie Manjaya, Elizabeth Tilley, Sara Marks
Street vending of hand-filled sachet drinking water is common, but not regulated in Malawi. There are concerns that sachet drinking water may be at risk of contamination due to unhygienic handling and/or unsafe sources. From 76 sachet vendors currently operating in Mzanza, 76 interior sachet water samples, 76 exterior bag rinse samples and 70 source water samples were analyzed for Escherichia coli (EC) and total coliforms (TC). All vendors use boreholes and taps for packaging operations and most (74%) do not treat their water. 50% and 20% of source water samples were positive (CFU/100ml≥1) for TC and EC, respectively. At the point-of-sale, most interior water samples contained at least 1 CFU/100ml for both TC (96%) and EC (64%) while 99% and 74% of exterior bag rinse samples were positive (CFU/100ml≥1) for TC and EC, respectively. The results indicate that contamination of sachet water in Mwanza increases from source to point-of-sale, possibly due to unhygienic handling.

Funding

The author/s would like to thank the Mwanza District Hospital, SHARE for their financial support.

History

School

  • Architecture, Building and Civil Engineering

Research Unit

  • Water, Engineering and Development Centre (WEDC)

Published in

Transformation towards sustainable and resilient WASH services: Proceedings of the 41st WEDC International Conference

Pages

? - ? (7)

Citation

MANJAYA, D., TILLEY, E. and MARKS, S., 2018. Microbiological quality and handling practices of street-vended sachet drinking water in Mwanza, Malawi. IN: Shaw, R.J. (ed). Transformation towards sustainable and resilient WASH services: Proceedings of the 41st WEDC International Conference, Nakuru, Kenya, 9-13 July 2018, Paper 2900, 7 pp.

Publisher

© WEDC, Loughborough University

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2018

Notes

This is a conference paper.

Language

en

Location

Nakuru, Kenya

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