What quality standards are appropriate for rural water supplies?
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چکیده
منابع مشابه
What quality standards are appropriate for rural water supplies?
The paper by Welch et al. entitled " Microbial quality of water in rural communities of Trinidad " (1) discussed aspects of water quality testing and expectations of safety of rural water supplies, and it affirmed similar observations of unpotability in developing countries that my colleagues and I described in a study in sub-Saharan Africa (2). The hazard of increased contamination of stored w...
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In the Mekong Delta (MD) in Vietnam, piped-water supply stations are being intensively built to reach the millennium development goal (MDG) to provide safe and clean drinking water resources to communities. However, studies focusing on the effectiveness of supply stations in reaching these goals are scarce to date. Water samples from 41 water supply stations in the MD were collected between Jun...
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International comparisons of health systems are frequently used to inform national health policy debates. These comparisons can be used to gauge areas of strength and weakness in a health system, and to find potential solutions from abroad that can be applied locally. But such comparisons are methodologically fraught and, if not carefully performed and used, can be misleading.In a recent IJHPR ...
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Politicians and policymakers across the political spectrum advocate high standards as a means of evaluating students. However, there exists very little published evidence that student achievement standards, such as the curriculum-based external exit exam (CBEEE) systems described by Bishop, lead to the substantial performance gains that advocates argue should occur. His paper takes an ambitious...
متن کاملWater Quality and Standards
Water is an essential material for all organisms on earth to sustain life, and a satisfactory water supply must be made available to consumers. It is required that drinking water not be contaminated by microbes or chemical substances harmful to human health. Pathogenic bacteria, viruses and protozoa in drinking water cause waterborne infectious diseases. The pollution source, pathogenicity, and...
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ژورنال
عنوان ژورنال: Revista Panamericana de Salud Pública
سال: 2001
ISSN: 1020-4989
DOI: 10.1590/s1020-49892001000400019