نتایج جستجو برای: water contamination

تعداد نتایج: 592313  

2009

erchlorate is a highly soluble salt anion that can negatively affect the ability of the human thyroid to adequately uptake iodide (Greer et al, 2002; Wolf, 1998). Since early 1997, perchlorate analytical techniques have significantly improved. As a result, drinking water testing performed throughout the United States has uncovered perchlorate contamination in several regions of the country at l...

ژورنال: مجله دندانپزشکی 2008
جمالی‌فر, حسین, فاضلی, محمد رضا, معماریان, مریم, کرمی, سمیه,

Background and Aim: According to infection possibility in high risk patients, assessment of microbial contamination in water sources utilized at medico-dental units has become a recent concern. The purpose of this study was to evaluate the microbial contamination in dental units waterlines at the department of operative dentistry, Tehran university of medical sciences in the year 2006. Materia...

2005
Elizabeth Bristow Kelly Brumbelow

Determining the consequences of a water contamination event is an important concern in the field of water systems security. Morbidity and mortality resulting from such a contamination are influenced in part by the amount of contaminated water consumed and the time between consumption and medical treatment. Water quality sensors in the water distribution network may shorten this time and help th...

Journal: :CoRR 2016
Jacob D. Abernethy Cyrus Anderson Chengyu Dai Arya Farahi Linh Nguyen Adam Rauh Eric Schwartz Wenbo Shen Guangsha Shi Jonathan Stroud Xinyu Tan Jared Webb Sheng Yang

Recovery from the Flint Water Crisis has been hindered by uncertainty in both the water testing process and the causes of contamination. In this work, we develop an ensemble of predictive models to assess the risk of lead contamination in individual homes and neighborhoods. To train these models, we utilize a wide range of data sources, including voluntary residential water tests, historical re...

2015
Ashish Kumar Vijaya Agrawala

Thousands and thousands of people are suffering from the toxic effect of arsenic in many countries. It is due to natural ground water contamination as well as industrial hazards waste and drainage problems. Permissible level of arsenic in water is 0.01 ppb defined by World Health Organization. The delta region of Brahmaputra and Ganga is one of the world’s most affected areas. The central porti...

2011
Patricia J. Lucas Christie Cabral John M. Colford

BACKGROUND Drinking water contaminated by chemicals or pathogens is a major public health threat in the developing world. Responses to this threat often require water consumers (households or communities) to improve their own management or treatment of water. One approach hypothesized to increase such positive behaviors is increasing knowledge of the risks of unsafe water through the disseminat...

Journal: :archives of razi institute 2016
h. forohesh n. amirmozafari a. halakoo

this study was carried out to investigate the occurrence of potentially pathogenic species of vibrio in sea water and estuarine environments of the caspian sea in the golestan province of iran. a total of 127 water samples from coastal waters as well as from river and estuaries were collected and analyzed by culture, during april and september 2001. following prompt centrifugation, the resuspen...

Journal: :Journal of water and health 2009
Curtis C Copeland Benjamin B Beers Meghan R Thompson Relana P Fitzgerald Leah J Barrett Jesus E Sevilleja Sayonara Alencar Aldo A M Lima Richard L Guerrant

Worldwide, contaminated drinking water poses a major health threat, particularly to child development. Diarrhoea represents a large part of the water-related disease burden and enteric infections have been linked to nutritional and growth shortfalls as well as long-term physical and cognitive impairment in children. Previous studies detailed the frequency of infection and the consequences for c...

Journal: :CoRR 2016
Rezvan Nazempour Mohammad Ali Saniee Monfared Enrico Zio

Drinking water for human health and well-being is crucial. Accidental and intentional water contamination can pose great danger to consumers. Optimal design of a system that can quickly detect the presence of contamination in a water distribution network is very challenging for technical and operational reasons. However, on the one hand improvement in chemical and biological sensor technology h...

Journal: :Environmental Health Perspectives 1985

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