نتایج جستجو برای: rural drinking water

تعداد نتایج: 690645  

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2010
K Van Den Bergh G Du Laing Juan Carlos Montoya E De Deckere F M G Tack

In the rural areas around Oruro (Bolivia), untreated groundwater is used directly as drinking water. This research aimed to evaluate the general drinking water quality, with focus on arsenic (As) concentrations, based on analysis of 67 samples from about 16 communities of the Oruro district. Subsequently a filter using Iron Oxide Coated Sand (IOCS) and a filter using a Composite Iron Matrix (CI...

2009
Katrina Jessoe Steven Wallander Juliana Wang

To reduce waterborne disease from unsafe drinking water supplies, the Government of India expanded protected drinking water sources throughout its rural areas. An increase in the supply of improved drinking water sources may reduce private expenditure on water quality enhancing behaviors, and negligibly affect water quality. Using cross-sectional data from a 1998 survey in rural India, I detect...

اسلامی‌فر, معصومه , ززولی, محمدعلی , هاشمی کروئی, سید مسعود ‌,

Background and purpose: Safe drinking is water that does not have any chemical and microbial contamination. According to the World Health Organization (WHO) guideline standards for drinking water total and fecal coliform the indicator of fecal contamination must not be detectable in any 100 ml samples. Pollution indicator bacteria such as coliforms and fecal coliforms were enumerated using a mu...

Journal: :Environmental science. Processes & impacts 2014
Halina B Röllin Tahira Kootbodien Penny Theodorou Jon Ø Odland

Exposure to environmental sources and altered physiological processes of manganese uptake during pregnancy and its possible effect on prenatal and postnatal development are of concern. This study investigates manganese blood levels at the time of delivery across four cohorts of pregnant women residing in coastal communities of South Africa and examines birth outcomes and environmental factors t...

2012
Hong Yang Jim A. Wright Stephen W. Gundry

Dear Sir: We read with interest the article by Rosa and Clasen 1 about the prevalence of household water treatment in low-income and middle-income countries. They discussed the geographic limitations of their global estimation, especially the lack of data for the largest national population in China. Several surveys covering water and sanitation have been undertaken in China in recent decades, ...

2014
Meha Jain Yili Lim Javier A. Arce-Nazario María Uriarte

Identifying which factors influence household water management can help policy makers target interventions to improve drinking water quality for communities that may not receive adequate water quality at the tap. We assessed which perceptional and socio-demographic factors are associated with household drinking water management strategies in rural Puerto Rico. Specifically, we examined which fa...

Journal: :Journal of environmental biology 2007
J R Bhuiyan S Gupta

A hydrobiological study conducted in nine different ponds of a rural area of Barak Valley, Assam, showed that the concentrations of chemical parameters like dissolved oxygen, free carbon dioxide, pH, conductivity alkalinity nitrate, phosphate, calcium, magnesium, copper and zinc are within the permissible levels of drinking water quality standard of WHO and ISI. However iron content was higher ...

Journal: :Revista do Instituto de Medicina Tropical de Sao Paulo 2011
Rogério Pereira Xavier Leonardo Pereira Siqueira Fernando Antonio Chaves Vital Francisca Janaina Soares Rocha João Inácio Irmão Glícia Maria Torres Calazans

Despite all efforts to store and reduce its consumption, water is becoming less inexhaustible and its quality is falling faster. Considering that water is essential to animal life, it is necessary to adopt measures to ensure its sanitary conditions in order to be fit for consumption. The aim of this study was to analyze the microbiological quality of drinking rainwater used by rural communities...

Background & Aim: Corrosion is one of the most complicated and costly problems related to the drinking water supply that can influence the health of consumers, the general acceptance of a water resource, and the costs of water supply. Scaling also causes problems such as clogging and head loss in drinking water networks. The aim of this study was to determine the chemical quality and stability ...

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