نتایج جستجو برای: groundwater contamination

تعداد نتایج: 78201  

2004
Md. Safiuddin Md. Masud Karim

The serious arsenic contamination of groundwater in Bangladesh has come out recently as the biggest natural calamity in the world. The people in 59 out of 64 districts comprising 126,134 km of Bangladesh are suffering due to the arsenic contamination in drinking water. Seventy five million people are at risk and 24 million are potentially exposed to arsenic contamination. Most of the recognized...

Journal: :Water environment research : a research publication of the Water Environment Federation 2007
Shirley E Clark Robert Pitt

To offset the detrimental effects of urbanization on groundwater recharge, stormwater managers are focusing on infiltrating much of the runoff from a site that was generated because of development. For this to be effective, tools are required to predict the potential for contamination resulting from this infiltration for many site conditions, because infiltration should be stressed in areas whe...

2012
Rajkumar Nagarajan Subramani Thirumalaisamy Elango Lakshumanan

Leachate and groundwater samples were collected from Vendipalayam, Semur and Vairapalayam landfill sites in Erode city, Tamil Nadu, India, to study the possible impact of leachate percolation on groundwater quality. Concentrations of various physicochemical parameters including heavy metals (Cd, Cr, Cu, Fe, Ni, Pb, Fe and Zn) were determined in leachate samples and are reported. The concentrati...

2012
M Pearson

Background: Chronic arsenic pollution is now recognised as a worldwide problem, with 21 countries experiencing arsenic groundwater contamination. It is a particularly important issue in developing countries, where groundwater is generally the preferred drinking source (as an alternative to polluted surface water). Technologies to remove or mitigate arsenic contamination of groundwater include p...

Journal: :Schriftenreihe des Vereins fur Wasser-, Boden- und Lufthygiene 2000
S Hartley

The provision of water supply and sanitation services to the developing and water scarce areas of South Africa is one of the goals of the Reconstruction and Development Programme. One of the principles of the South African National Sanitation Policy stipulates that sanitation systems which have unacceptable impacts on the environment cannot be considered to be an adequate form of sanitation. Th...

Journal: :تحقیقات نظام سلامت 0
اصغر ابراهیمی عضو هیأت علمی، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهید صدوقی، یزد، ایران. محمدحسن احرامپوش دانشیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهید صدوقی، یزد، ایران. محمدتقی قانعیان استادیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهید صدوقی، یزد، ایران. مجتبی داودی دانشجوی دکتری، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران. حسن هاشمی عضو هیأت علمی، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهرکرد، شهرکرد، ایران. شاهین بهزادی کارشناس، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران.

background: groundwater is the most important source of water supply in industries and agricultures; therefore the need to protect this valuable resource against pollution is felt more than ever. in this study, the possible impact of yazd municipal solid waste landfill was investigated on the chemical quality of the area’s groundwater. methods: groundwater samples were collected from three well...

Journal: :Environmental Health Perspectives 1990
R Patrick

Groundwater contamination is a serious problem that is growing in the United States, but its true extent is not known and it is difficult to determine because of the complexities of contaminants, their transformation, and fate in groundwater systems. It is also difficult to predict their movement in groundwater. Since we know that the problem is serious and that our needs for groundwater will g...

2002
Thomas D. Crocker Bruce A. Forster Jason F. Shogren A. FORSTER

This paper explores the implications of endogenous risk for the economic value of preventing groundwater contamination. We consider the analytical implications of endogenous risk for five key building blocks frequently used to structure studies of groundwater valuation: the probability and the location of contamination, the exposed population, risk perceptions, and intertemporal issues.

2017
Justin Wright Veronica Kirchner William Bernard Nikea Ulrich Christopher McLimans Maria F. Campa Terry Hazen Tamzen Macbeth David Marabello Jacob McDermott Rachel Mackelprang Kimberly Roth Regina Lamendella

The uncontrolled release of the industrial solvent methylene chloride, also known as dichloromethane (DCM), has resulted in widespread groundwater contamination in the United States. Here we investigate the role of groundwater bacterial communities in the natural attenuation of DCM at an undisclosed manufacturing site in New Jersey. This study investigates the bacterial community structure of g...

2013
Palas Roy Naba Kumar Mondal Biswajit Das Kousik Das Naba K. Mondal

High arsenic in natural groundwater in most of the tubewells of the PurbasthaliBlock II area of Burdwan district (W.B, India) has recently been focused as a serious environmental concern. This paper is intending to illustrate the statistical modeling of the arsenic contaminated groundwater to identify the interrelation of that arsenic contain with other participating groundwater parameters so t...

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