نتایج جستجو برای: drinking water supplies

تعداد نتایج: 597261  

Journal: :Journal of water and health 2012
Vinita Rawat Sanjay Kumar Jha Arundhati Bag Monil Singhai Chandra Mohan Singh Rawat

A cross-sectional study was conducted to assess the bacteriological quality of water in Haldwani block, Nainital District, India. Stratified random sampling was used to categorize water sources and consumer points. In total, 108 samples were collected: 15 from the Gola river, 51 from water taps, 24 from water treatment plants and 18 from tube wells. Samples were tested for coliforms by the most...

2012
Jim A Wright Hong Yang Ulrike Rivett Stephen W Gundry

BACKGROUND In low and middle income countries, public perceptions of drinking water safety are relevant to promotion of household water treatment and to household choices over drinking water sources. However, most studies of this topic have been cross-sectional and not considered temporal variation in drinking water safety perceptions. The objective of this study is to explore trends in perceiv...

Journal: :Journal of environmental radioactivity 2001
J de Oliveira B P Mazzilli M H Sampa E Bambalas

The activity concentrations of 228Ra, 226Ra and 222Rn have been analysed in 452 drinking water supplies of São Paulo State. This study started in 1994 and covered 54% of the 574 existing counties. Concentrations up to 235 and 131 mBq l-1 were observed for 226Ra and 228Ra, respectively, whereas 222Rn concentrations reached 315 Bq l-1. Radiation doses up to 0.3, 0.6 and 3.2 mSv yr-1 were estimate...

Journal: :Journal of water and health 2011
Hari Katuwal Alok K Bohara

The authors examined the demand for clean drinking water using treatment behaviors in Kathmandu, Nepal. Water supply is inadequate, unreliable and low quality. Households engage in several strategies to cope with the unreliable and poor quality of water supplies. Some of the major coping strategies are hauling, storing, and point-of-use treatment. Boiling, filtering, and use of Uro-guard are so...

Journal: :BMC Public Health 2007
Jean-Christophe Fotso Alex Chika Ezeh Nyovani Janet Madise James Ciera

BACKGROUND Improvements in child survival have been very poor in sub-Saharan Africa (SSA). Since the 1990 s, declines in child mortality have reversed in many countries in the region, while in others, they have either slowed or stalled, making it improbable that the target of reducing child mortality by two thirds by 2015 will be reached. This paper highlights the implications of urban populati...

2013
David Ozonoff

PCE (perchlorethylene, also known as 'perc' or tetrachloroethylene), was used in the production of plastic linings for drinking water distribution pipes in the late 1960s and 1970s. This new and relatively untested type of distribution pipe was used in over 700 miles of New England's water distribution systems. Not until 1976 was it discovered that PCE had been leaching into the water from the ...

A. Binesh, A.A. Mowlavi, S. Mohammadi,

Background: Radon concentration was measured in 50 drinking water samples in Mashhad - Iran. b The tap water used for drinking and other household usages can increase the indoor radon level. Drinking water samples were collected from various places and supplies of public water used in Mashhad. Then radon concentration has been measured by portable radon gas surveyor SILENA (PRASSI) sy...

Journal: :Journal of water and health 2011
Fabio Bacci Deborah V Chapman

The microbiological quality of 75 private drinking water supply boreholes in Co. Cork, Ireland was assessed in order to determine the incidence of contamination and the potential pathways of such contamination. Microbiological analysis was carried out using the membrane filtration technique for the recovery of thermotolerant (faecal) coliforms. The sanitary protection of the supplies was evalua...

2013
Yu Liu Zhonglin Chen Jimin Shen

The presence of phthalate esters (PAEs) in the environment has gained a considerable attention due to their potential impacts on public health. This study reports the first data on the occurrence of 15 PAEs in the water near the Mopanshan Reservoir-the new and important water source of Harbin city in Northeast China. As drinking water is a major source for human exposure to PAEs, the fate of ta...

Journal: :Journal of water and health 2006
Christine L Moe Richard D Rheingans

The year 2005 marks the beginning of the "International Decade for Action: Water for Life" and renewed effort to achieve the Millennium Development Goals (MDGS) to reduce by half the proportion of the world's population without sustainable access to safe drinking water and sanitation by 2015. Currently, UNICEF and WHO estimate that 1.1 billion people lack access to improved water supplies and 2...

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