694,228 research outputs found

    Health effects from exposure to high levels of sulfate in drinking water study

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    "January 21, 1999."Also available via the World Wide Web

    Performance of Broiler Chickens Offered Drinking Water Contained Water Extracted Beluntas (Pluchea Indica L.) Leaf and Sugar Cane

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    Our previous study showed that the addition of water extracted beluntas leaf into drinking water could be used as an anti-stress and improved performance of broiler chicken. However, the addition was only up to 10% of drinking water. The objective of this experiment was to study whether the addition of sugar and water extracted beluntas leaf in levels higher than 10% of drinking water can give greater benefit on performances and meat cholesterol content of broiler. Two hundred sixteen DOCs CP707 strain were reared for four weeks in high stocking density of 15 birds/m2. The birds were subjected to experimental drinking waters with or without water extracted beluntas leaf (v/v) and sugar which is consisted of T1 (only drinking water), T2 (drinking water + commercial antistress), T3 (drinking water + 10% extract of beluntas leaf ), T4 (drinking water + 20% extract of beluntas leaf), T5 (drinking water + 40% extract of beluntas leaf), T6 (drinking water + 80% extract of beluntas leaf), T7 (drinking water + 40% extract of beluntas leaf + 1.6% sugar), and T8 (drinking water 80% extract of beluntas leaf + 3.1% sugar). The results showed that water extracted beluntas leaf addition higher than 10% significantly reduced (P < 0.05) body weight gain, final body weight, and increased (P < 0.05) feed conversion ratio. It is concluded that the addition of water extracted beluntas leaf more than 10% into drinking water cannot give greater benefit on performances as an antistress of broiler. Sugar addition cannot help the disadvantage due to the bitter taste of higher level of water extracted beluntas leaf addition

    Thirst: A Short History of Drinking Water

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    From earliest times, human societies have faced the challenge of supplying adequate quality and quantities of drinking water. Whether limited by arid environments or urbanization, provision of clean drinking water is a prerequisite of any enduring society, but it is a daunting task for drinking water is a multi-faceted resource. Drinking water is most obviously a physical resource, one of the few truly essential requirements for life. Drinking water is also a cultural resource, of religious significance in many societies. A social resource, access to water reveals much about membership in society. A political resource, the provision of water to citizens can serve important communication purposes. And finally, when scarce, water can become an economic resource. As recent conflicts in developing countries make clear, managing and mediating these many facets of drinking water is no easy matter. Understanding a society\u27s ability to provide clean drinking water to its citizens, examining how it recognizes the different natures of this vital resource, provides a unique prism on the society\u27s organization, equity, and view of itself. In seeking to understand better how societies manage such a critical resource, this article considers three questions. How have different societies thought about drinking water? How have different societies managed access to drinking water? And how have these changed over time? These questions are, of course, interrelated. How we think of water, whether as a sacred gift or a good for sale, both influences and is influenced by how we manage access to drinking water. While not an obvious issue to us in 21st century America, management of drinking water as a resource -- who gets it, when they get it, and how much they get -- matters a great deal. Written for a symposium celebrating the scholarship of Carol Rose, this article synthesizes research to date from an ongoing book project on the history of drinking water. Using a case study approach, we journey on a wide-ranging geographical and historical tour, briefly exploring drinking water management in societies across five continents, from 5,000 years ago up through today. Along the route, we find that something as seemingly simple as drinking water washes clear a society\u27s views toward the role of government, norms, and the market

    A review on the influence of drinking water quality towards human health

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    An adequate supply of safe drinking water is one of the major prerequisites for a healthy life. Inadequate of safe drinking water produce waterborne disease and a major cause of death in many parts of the world, particularly in children. Therefore, it must be treated properly before it can be used and consumed. This chapter provides the guidelines of important parameters for drinking water standard in order to ensure the safeness of drinking water. All the selected parameters were elaborated on the effect of high concentration if human consume the drinking water directly

    The role of the motility of Methylobacterium in bacterial interactions in drinking water

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    Bacterial motility is one important factor that affects biofilm formation. In drinking water there are key bacteria in aggregation, whose biology acts to enhance the formation of biofilms. However, it is unclear whether the motility of these key bacteria is an important factor for the interactions between bacteria in drinking water, and, subsequently, in the formation of aggregates, which are precursors to biofilms. Thus, the role of the motility of one of these key bacteria, the Methylobacterium strain DSM 18358, was investigated in the interactions between bacteria in drinking water. The motility of pure Methylobacterium colonies was initially explored; if it was affected by the viscosity of substrate, the temperature, the available energy and the type of substrate. Furthermore, the role of Methylobacterium in the interactions between mixed drinking water bacteria was investigated under the mostly favourable conditions for the motility of Methylobacterium identified before. Overall, the motility of Methylobacterium was found to play a key role in the communication and interactions between bacteria in drinking water. Understanding the role of the motility of key bacteria in drinking water might be useful for the water industry as a potential tool to control the formation of biofilms in drinking water pipes

    Water Supply and Health: Drinking water and Sanitation Coverage in Ethiopia 1990 - 2015 Review

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    Background: Human health, incorporating physical, social and psychological well-being, depends on an adequate supply of potable water and a safe environment sections. Waterborne infections are one of the commonest problems in developing countries. Access to safe drinking water and basic sanitation needs will eliminate vast part of water-borne disease cases. Objectives: to assess the trends safe water coverage and sanitary conditions in Ethiopia together with the challenges of the sector. Methods: In depth literature survey from online published peer reviewed articles, publications from International organization and Ethiopia ministry of health was used to assess the trend and access of improved water and sanitation coverage since 1990 to 2015 in Ethiopia. Results: Among 93 articles, 45 of them have important information and included in the quantitative review. To this end Ethiopia has reached the Millennium Development goal of access to safe water and the national coverage reached to 68.5% and 33% for sanitation facilities. Ethiopia is not on the right track to reach for sanitation target (47%) of 2015. The development trend for water coverage and sanitation facilities shows that urban dwellers (16% of the population) are more benefited than the rural (84%) citizens. Poor access of sanitation and improved drinking water in rural part is resulted due to improper planning, malfunction water scheme utilities, and other factors. Conclusions: Despite, the efforts made to increase the access to safe drinking water and sanitation facilities to the population in the last 15 years; water related diseases are still one of the top ten diseases in the country. Protecting the source alone is not sufficient enough to reduce waterborne diseases unless point of use treatments and hygienic handling of water is practiced. Additional commitments and efforts are required post 2015 to assure the sustainability, access to the basic human right, water

    State of Iowa Public Drinking Water Program 2003 Annual Compliance Report, June 2004

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    This report contains information about Iowa's public drinking water program for the calendar year 2003. Included in the report are descriptions of Iowa's systems, monitoring and reporting requirements of the systems, and violations incurred during the year. This report meets the federal Safe Drinking Water Act's requirement of an annual report on violations of national primary drinking water regulations by public water supply systems in Iowa

    Utility Customers\u27 Views of the Consumer Confidence Report of Drinking Water Quality

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    The author evaluates consumer understanding of water quality reports provided to them by their drinking water utility under the U.S. Safe Drinking Water Act Amendments of 1996

    Viruses and drinking water

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    There is no evidence to indicate that there is a risk of acquiring a virus infection through the consumption of properly treated drinking water, provided the integrity of the distribution system is maintained and there is no post-treatment contamination. The consumption of inadequately treated, untreated or post-treatment contaminated water is, however, associated with a risk of hepatitis A, hepatitis E and viral gastroenteritis. The use of the standard bacterial indicators for water monitoring provides an adequate safeguard against viral contamination
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