Water quality standards: progress and problems of implementation.
نویسندگان
چکیده
منابع مشابه
Water 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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Contents 1. Introduction 2. Drinking water quality standards and their development 2.1. WHO drinking water quality guidelines 2.2. Health related chemicals 2.3. Microbiological aspects 2.4. Acceptability aspects 2.5. Development of national drinking water quality standard 3. Wastewater quality standard 4. Water quality consideration in various water uses 4.1. Agricultural water use and preventi...
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Water is used for various purposes: for daily life, agriculture, industry and fisheries. Water in chemically pure form rarely occurs in nature; it is commonly found to host a wide variety of constituents derived from both the natural and human environments. It is therefore necessary to establish water quality standards to assess and to manage water from the viewpoint of water use as well as the...
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Software Implementation of Power Quality Standards
In recent years, equipment and network standards have been increasing in both number and complexity. Two standards that will soon be introduced to Australia are the MV and HV standards for assessing distorting and fluctuating loads, AS/NZS 61000.3.6 and AS/NZS 61000.3.7, respectively. Utility engineers, being under increasing time constraints, are turning more and more to software to quickly so...
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ژورنال
عنوان ژورنال: American Journal of Public Health and the Nations Health
سال: 1968
ISSN: 0002-9572
DOI: 10.2105/ajph.58.2.348