نتایج جستجو برای: water quality standards

تعداد نتایج: 1337944  

Journal: :Journal of environmental biology 2010
G Alagumuthu M Rajan

The fluoride concentration in ground water was determined in Sankarankovil block of Tirunelveli district of Tamilnadu (India) where it is the only source of drinking water. Various other water quality parameters such as pH, electrical conductivity total hardness and total alkalinity as well as calcium, magnesium, carbonate, bicarbonate and chloride concentrations were also measured. A systemati...

2017
Pieter J. Stuyfzand Koen G. Zuurbier Niels Hartog Mohamed A. Dawoud Maria Filomena Camões

To be able to overcome water shortages, Abu Dhabi Emirate started an Aquifer Storage and Recovery (ASR) project with desalinated seawater (DSW) as source water near Liwa. It is the largest DSW-ASR project in the world (stored volume ~10 Mm3/year), and should recover potable water for direct use. DSW is infiltrated into a desert dune sand aquifer using “sand-covered gravel-bed” recharge basins. ...

Journal: :Clinical chemistry 1971
M Zief F W Michelotti

The dynamic interplay between preparation, handling, containment, and analysis of ultrapure chemical standards and reagents for the clinical chemistry laboratory is described. Inorganic as well as organic standards are reviewed. The contamination problems associated with water, acids, and solvents in trace-element analysis are defined and resolved. In addition, less well-known sources of error ...

2014
Shweta Tyagi Prashant Singh Bhavtosh Sharma Rakesh Singh

The water quality of Pauri District of Uttarakhand, India has been assessed during preand postmonsoon seasons to express the suitability of water for drinking purposes. The values of turbidity and iron exceed the permissible limit prescribed by Indian Standards for drinking purpose. Some sites were also contaminated with large number of total and fecal coliform bacteria. Piper diagrams exhibit ...

Journal: :iranian journal of health sciences 0
babak djahed department of environmental health engineering, school of public health, iranshahr university of medical sciences, mohammad reza narooie department of environmental health engineering, school of public health, iranshahr university of medical sciences, seyed ali kazeminejad department of civil and environmental engineering, school of engineering, university of texas, arlington, usa esmaeel shahsavani department of environmental health engineering, school of public health, shiraz university of medical sciences, edris bazrafshan department of environmental health engineering, school of health, health promotion research center, zahedan

background and purpose: today, by increasing different pollutants, the continuous monitoring of surface waters is essential. dorudzan dam is one of the main sources of surface water in fars province, iran; hence, the current study investigated the quality  of dorudzan reservoir for drinking and irrigation consumptions. materials and methods: in this study, various physicochemical parameters [ph...

Some physicochemical parameters of honey have been introduced by the International Honey Commission to evaluate its quality and origin but processes such as heating and filtering can affect these parameters. In traditional Iranian medicine, deslagging process involves boiling honey in an equal volume of water and removing the slag formed during process. The aim of this study was to determine th...

2013
R. Seshadri

Water is a key resource in all economic activities ranging from agriculture to industry. Only a tiny fraction of the planet’s abundant water is available to us as fresh water. Assessment of water quality has always been paramount in the field of environmental quality management. It is the foundation for health, hygiene, progress and prosperity.With ever increasing pressure of human population, ...

2012
G. Annalakshmi

Physico-chemical studies were conducted in river Arasalar situated in Kumbakonam, Tamilnadu, India. The study was conducted from January to December 2010. The present paper deals with nutrient status in Arasalar river, for this three stations were selected for the sampling methods i.e., S1, S2 and S3 the main aim of the study was to determine the nutrient status of Arasalar River and the suitab...

Journal: :Pure and applied chemistry. Chimie pure et appliquee 1970
K J Ives

Man has certain needs for water: physiological, domestic, agricultural and industrial. These needs are not the same in quantity or quality, in location or in time, yet they must all be met to allow for mankind's full development. Man's use of water degrades its quality: by gross pollution, by residual materials which change the ecology of the water environment, and by persistent microchemical p...

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