نتایج جستجو برای: drinking water standards

تعداد نتایج: 675339  

Journal: :Journal of water and health 2008
Veronica Blette

The United States Environmental Protection Agency implements a national drinking-water program under the authority of the Federal Safe Drinking Water Act. Amendments to the Act in 1996 added new provisions to enhance consumer understanding of drinking-water issues. Notification requirements associated with annual consumer confidence reports, source water assessments and state compliance reports...

2016
Thomas Gutzke Marco Stelzer Alina Gutzke

Requirements on the quality of drinking water – based on the Drinking Water Ordinance (Trinkwasserverordnung) – are quite high in Germany. The given standards issue big challenges to the majority of the estimated 6.200 water suppliers. One part of that statutory requirements demands the publication of the drinking water quality for the public by every supplier at regular intervals for every of ...

2013
Xinzhu Yang Xiaowei Wang

Nanofiltration (NF) membrane can efficiently remove the ions from groundwater, especially for high valence ions. Results show that the removal rate of fluoride was approximately 67% by the NF system, while for arsenic the removal rate was more than 93%. NF presented the well selective removal for fluoride. The quality of product water meets the national drinking water standards. Therefore, the ...

Journal: :international journal of occupational and environment medicine 0
isi ogbu department of medical laboratory science, faculty of health sciences and technology university of nigeria nsukka-enugu campus, nigeria oio okoro department of medical laboratory science, faculty of health sciences and technology university of nigeria nsukka-enugu campus, nigeria ei ugwuja department of chemical pathology, faculty of clinical medicine, ebonyi state university, p.m.b. 053 abakaliki, nigeria

abnormal fluoride levels in drinking water have been associated with adverse health effects. to determine the fluoride content of well waters in enugu, southeastern nigeria, water samples from 50 artisan wells chosen by multistage sampling procedure from the 5 zones of enugu municipality were analyzed in duplicates for their fluoride content. the zonal mean values were 0.60, 0.70, 0.62, 0.62, a...

Journal: :Journal of clinical and diagnostic research : JCDR 2014
Ashish Singla Hansa Kundu Basavaraj P Shilpi Singh Khushboo Singh Swati Jain

INTRODUCTION Quality of drinking water is a powerful environmental determinant of health. The main objective of introduction of bottled water in the society was its better safety, taste and convenience over tap water. The present study was conducted to assess physicochemical and bacterial qualities of bottled water and sachet water which were available in various markets of Delhi. MATERIALS A...

Journal: :Revista panamericana de salud publica = Pan American journal of public health 2002
Luiz Carlos Rangel Soares Marilena O Griesinger J Norberto W Dachs Marta A Bittner Sonia Tavares

OBJECTIVE To identify and evaluate inequities in access to drinking water services as reflected in household per capita expenditure on water, and to determine what proportion of household expenditures is spent on water in 11 countries of Latin America and the Caribbean. METHODS Using data from multi-purpose household surveys (such as the Living Standards Measurement Survey Study) conducted in...

Journal: :Journal of water and health 2008
María J Gunnarsdóttir Loftur R Gissurarson

Icelandic waterworks first began implementing hazard analysis and critical control points (HACCP) as a preventive approach for water safety management in 1997. Since then implementation has been ongoing and currently about 68% of the Icelandic population enjoy drinking water from waterworks with a water safety plan based on HACCP. Preliminary evaluation of the success of HACCP implementation wa...

Background: Scaling and corrosion are the two most important indexes in water quality evaluation. Pollutants are released in water due to corrosion of pipelines. The aim of this study is to assess the scale formation and corrosion of drinking water supplies in Ilam city (Iran). Methods: This research is a descriptive and cross-sectional study which is based on the 20 drinking water sources in ...

Journal: :پژوهشنامه پردازش و مدیریت اطلاعات 0
مهرخ ملکیان mahrokh malekian عضو هیئت علمی مرکز اطلاعات و مدارک علمی ایران

this project aims at collecting and cataloging the information pertaining to the research projects and documents concerning water resource. the data collected along with abstracts were entered into worksheets in compliance with us- marc bibliographic format. they were fed into the computer following the necessary validation process. so far more than 5000 documents (proceedings, research report,...

Journal: :international archives of health sciences 0
miranzadeh m.b. hoseinidoost gh.r environment health engineering department, health faculty, kashan university of medical sciences, kashan, iran marzaleh m.a.

aims: bottled water is widely used in many countries and more than 100 different brands of bottled water are produced in iran. the aim of the present research was to assess the chemical compound of some iranian brands of bottled water and compare them with the mention information on their labels.     instrument & methods: this descriptive study was performed during march to december 2012 on the...

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