نتایج جستجو برای: drinking water systems

تعداد نتایج: 1704566  

2006
Deana M. Manassaram Lorraine C. Backer Deborah M. Moll

In this review we present an update on maternal exposure to nitrates in drinking water in relation to possible adverse reproductive and developmental effects, and also discuss nitrates in drinking water in the United States. The current standard for nitrates in drinking water is based on retrospective studies and approximates a level that protects infants from methemoglobinemia, but no safety f...

2016
Tingting Liu Weiwen Kong Nan Chen Jing Zhu Jingqi Wang Xiaoqing He Yi Jin

Flow cytometry (FCM) and 16S rRNA gene sequencing data are commonly used to monitor and characterize microbial differences in drinking water distribution systems. In this study, to assess microbial differences in drinking water distribution systems, 12 water samples from different sources water (groundwater, GW; surface water, SW) were analyzed by FCM, heterotrophic plate count (HPC), and 16S r...

2016
Lindsay P. Galway

Access to safe and reliable drinking water is commonplace for most Canadians. However, the right to safe and reliable drinking water is denied to many First Nations peoples across the country, highlighting a priority public health and environmental justice issue in Canada. This paper describes trends and characteristics of drinking water advisories, used as a proxy for reliable access to safe d...

2014
Clemens Karwautz Tillmann Lueders

The microbial monitoring of drinking water production systems is essential to assure water quality and minimize possible risks. However, the comparative impact of microbes from the surrounding aquifer and of those established within drinking water wells on water parameters remains poorly understood. High pressure jetting is a routine method to impede well clogging by fine sediments and also bio...

Introduction: Corrosion and scaling of water in distribution systems in spite of imposing economic and aesthetic problems can lead to adverse effects on consumers' health. The present study was conducted to evaluate the corrosion and scaling of water distribution system of Sarableh city (Ilam, Iran) during summer and winter seasons in 2014. Materials and methods: Totally, 60 samples of wate...

Journal: :Frontiers in microbiology 2016
Emmanuelle I. Prest Frederik Hammes Mark C. M. van Loosdrecht Johannes S. Vrouwenvelder

Biological stability of drinking water refers to the concept of providing consumers with drinking water of same microbial quality at the tap as produced at the water treatment facility. However, uncontrolled growth of bacteria can occur during distribution in water mains and premise plumbing, and can lead to hygienic (e.g., development of opportunistic pathogens), aesthetic (e.g., deterioration...

Journal: :Applied and environmental microbiology 2013
Paul W J J van der Wielen Leo Heijnen Dick van der Kooij

Studies have shown that certain opportunistic pathogenic species of nontuberculous mycobacteria (NTM) can be present in distributed drinking water. However, detailed information about NTM population composition in drinking water is lacking. Therefore, NTM communities in unchlorinated drinking water from the distribution system of five treatment plants in the Netherlands were characterized using...

Journal: :journal of basic research in medical sciences 0
heshmatollah nourmoradi department of environmental health engineering, school of health, ilam university of medical sciences, ilam, iran. seyed ahmad mirbagheri department of environmental engineering, school of energy and environment, tehran azad university, branch of sciences and researches, tehran, iran kambiz moradnejadi department of environmental engineering, school of energy and environment, tehran azad university, branch of sciences and researches, tehran, iran faroogh kazembeigi department of environmental health engineering, school of health, ilam university of medical sciences, ilam, iran mashallah shamsizad department of environmental engineering, school of energy and environment, tehran azad university, branch of sciences and researches, tehran, iran

introduction: corrosion and scaling of water in distribution systems in spite of imposing economic and aesthetic problems can lead to adverse effects on consumers' health. the present study was conducted to evaluate the corrosion and scaling of water distribution system of sarableh city (ilam, iran) during summer and winter seasons in 2014. materials and methods: totally, 60 samples of wat...

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