Please use this identifier to cite or link to this item: https://doi.org/10.1023/A:1005747732104
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dc.titleDomestic water contamination in rapidly growing megacities of Asia: Case of Karachi, Pakistan
dc.contributor.authorRahman, A.
dc.contributor.authorLee, H.K.
dc.contributor.authorKhan, M.A.
dc.date.accessioned2014-10-16T08:48:00Z
dc.date.available2014-10-16T08:48:00Z
dc.date.issued1997
dc.identifier.citationRahman, A., Lee, H.K., Khan, M.A. (1997). Domestic water contamination in rapidly growing megacities of Asia: Case of Karachi, Pakistan. Environmental Monitoring and Assessment 44 (1-3) : 339-360. ScholarBank@NUS Repository. https://doi.org/10.1023/A:1005747732104
dc.identifier.issn01676369
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/95451
dc.description.abstractThe development of essential services including water and sanitation in many megacities of the economically developing countries of Asia cannot keep pace with their rapidly growing population and accompanying urban and industrial development. The inadequate water supply and poor sanitation services lead to contamination of their water supply. It also leads to the input of sewage water into the groundwater. The problem is seriously acute in Karachi, the largest city in Pakistan with a population of over 12 million and growing at 6 percent. This paper examines the problem of water contamination in Karachi. The paper presents the data on water quality from various sources, mainly municipal water supply, vendors and well water; the three major sources of water for domestic use in Karachi. Except municipal water from some areas and during certain periods, water from most other sources contain coliform bacteria, and in many cases faecal coliform, in amounts several magnitudes higher than any standards permit. Many samples have also been found to contain heavy metals including Chromium, Lead, Nickel and Arsenic in amounts excessive of permitted standards. The probable sources of contaminants for the various types of water (piped, vendors, wells) indicate that groundwater may be the main contributor. The very source of this groundwater is predominantly from sewage. The health hazards from consuming such contaminated water are obvious. The paper also evaluates the solutions that are being practiced, proposed or may be feasible, as well as those that are evolving.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1023/A:1005747732104
dc.sourceScopus
dc.typeConference Paper
dc.contributor.departmentCHEMISTRY
dc.description.doi10.1023/A:1005747732104
dc.description.sourcetitleEnvironmental Monitoring and Assessment
dc.description.volume44
dc.description.issue1-3
dc.description.page339-360
dc.description.codenEMASD
dc.identifier.isiutA1997XB93100029
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