نتایج جستجو برای: drinking water supplies

تعداد نتایج: 597261  

Journal: :Environmental Health Perspectives 2000
J Tibbetts

Today, at least one-fifth of all people worldwide lack access to safe drinking water, a problem that will almost certainly worsen as the earth's population grows. Although the vast majority of industrial discharges into waterways are regulated and treated, and most cities and towns effectively monitor and treat their sewage for chemical contaminants, problems such as arsenic contamination and d...

Journal: :iranian journal of radiation research 0
n. alirezazadeh national radiation protection department iranian nuclear regulatory authority tehran, iran h. garshasbi

background: measurement of back ground concentration of uranium in drinking water is very important for many reasons, specially, for human health. the uranium concentration in drinking water in many counties is a matter of concern for clinical and radioactive poisoning. materials and methods: the uranium concentration in drinking water is determined using laser flourimatric uranium analyzer. fo...

2004
D. M. Miles B. D. Lott S. L. Branton J. D. Simmons

Inadequate drinking water supplies have been cited as a major reason for poor weight gain in broiler production. One of the limiting factors is nipple waterer flow rate. Research demonstrated a constant water flow rate of 25 mL/min impeded BW by approximately 156 g (0.34 lb) at 6 wk of age compared with those having 75 mL/min through the grow out. A device to measure nipple flow rates was devel...

2013
Norio Sugawara Norio Yasui-Furukori Nobuyoshi Ishii Noboru Iwata Takeshi Terao

Lithium has been used as a mood-stabilizing drug in people with mood disorders. Previous studies have shown that natural levels of lithium in drinking water may protect against suicide. This study evaluated the association between lithium levels in tap water and the suicide standardized mortality ratio (SMR) in 40 municipalities of Aomori prefecture, which has the highest levels of suicide mort...

2005
Paul A. Hagerty James R. Taylor

Nitrate-nitrogen (NO3-N) in groundwater is becoming a ubiquitous problem, particularly in rural and suburban areas where domestic water supplies are obtained from individual on-lot water supply wells. Nitrate in groundwater can come from natural sources such as soil, bedrock and organic material; however, the overwhelming loading of nitrate originates from anthropogenic sources, particularly ag...

2004
Katharine M. Benedict Hannah Reses Marissa Vigar David M. Roth Virginia A. Roberts Mia Mattioli Laura A. Cooley Elizabeth D. Hilborn Timothy J. Wade Kathleen E. Fullerton Jonathan S. Yoder Vincent R. Hill

Provision of safe water in the United States is vital to protecting public health (1). Public health agencies in the U.S. states and territories* report information on waterborne disease outbreaks to CDC through the National Outbreak Reporting System (NORS) (https://www.cdc.gov/healthywater/surveillance/index.html). During 2013-2014, 42 drinking water-associated† outbreaks were reported, accoun...

Background: According to Hindu mythology, Yamuna River plays an impotent role as a holy water resource in Delhi, India. The lead and chromium concentrations were determined from the water samples collected from five different locations around this river in Delhi area. The contaminated water from this river is mostly used for drinking, agriculture, aquaculture, and storage as a holy water. Meth...

Journal: :Journal of the American Chemical Society 1900

Journal: :Applied and environmental microbiology 1992
I Hübner I Steinmetz U Obst D Giebel D Bitter-Suermann

An immunological method for the detection of members of the family Enterobacteriaceae in drinking water was developed. The method was based on a sandwich enzyme-linked immunosorbent assay (ELISA) with monoclonal antibody immunoglobulin G2a 898 against enterobacterial common antigen. The enterobacterial common antigen sandwich ELISA combined with selective preenrichment culture could be performe...

2003
Timothy Besley Abhijit Banerjee Roland Benabou

Effective provision of public goods is a key element of quality of life. While poverty is frequently measured and conceived in terms of private consumption, this is too narrow a view. Two groups of people with similar private consumption will have very different qualities of life if there are significant differences in their access to safe drinking water or medical care. Mechanisms for effectiv...

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