نتایج جستجو برای: groundwater vulnerability

تعداد نتایج: 69923  

2008
A. Carvalho Dill

Radio frequency geophysical methods are known for being very versatile tools in groundand groundwater investigation at shallow depths. They are fast and easy to use and allow a high density of information over large surfaces, which makes them very suitable for geological mapping sensu lato (faults, lithological contacts, groundwater-bearing structures, vulnerability maps, and contaminant plumes...

2011
Hélène Pauwels Marie Pettenati Jérôme Perrin Philippe Negrel Shakeel Ahmed

A geochemical study was conducted to obtain a comprehensive understanding of fluoride concentration increase in groundwater from a crystalline (hard-rock) aquifer in a small Indian agricultural watershed, where groundwater is intensively abstracted for paddy irrigation. A reactive1-D geochemical model using PHREEQC was used to reproduce fluoride concentrations under rice paddies taking into acc...

Journal: :Earth 2022

Groundwater is a useful source of water for various uses in different places. The major challenge the use this resource how to manage and protect it from contamination. current study was conducted Morogoro Municipality identify vulnerable groundwater areas by using DRASTIC-LU/LC model. applied eight input parameters, i.e., depth table, net recharge, aquifer media, soil topography, impact vadose...

2010
N. Lopez R. Tinelli

Apulia, in the absence of surface water, is one of the Italian regions which satisfy their water requirements by drawing large quantities (over 40%) of its water from underground resources. The large amounts drawn from these resources in the last few years due to increasing human activity on the territory has determined a general and inevitable reduction of the quality of the underground water ...

2008
L. Niel Plummer Eurybiades Busenberg Sandra M. Eberts Laura M. Bexfield Craig J. Brown Lynne S. Fahlquist Brian G. Katz Matthew K. Landon

Concentrations of halogenated volatile organic compounds VOCs were determined by gas chromatography GC with an electron-capture detector GC-ECD and by gas chromatography with mass spectrometry GC-MS in 109 groundwater samples from five study areas in the United States. In each case, the untreated water sample was used for drinking-water purposes or was from a monitoring well in an area near a d...

Journal: :پژوهش های جغرافیای طبیعی 0
مهسا رحیم زاده کیوی دانشجوی کارشناسی ارشد مهندسی منابع آب، دانشکدة کشاورزی، دانشگاه ملایر سعید حمزه استادیار گروه سنجش از دور و gis، دانشکدة جغرافیا، دانشگاه تهران حمید کاردان مقدم دانشجوی دکتری مهندسی منابع آب، پردیس ابوریحان، دانشگاه تهران

introduction water is the most important parameter in the development of human societies. one of the pillars in the development of water resources is the investigation of environmental conditions and environmental compatibility of the project. identification of the areas vulnerable to pollution can play a major role in development strategies. in most areas of iran, located in the arid and semi-...

D.C. Singhal H. Joshi Hussain Musa Hussain M.S. Rao S. Kumar

The changes in human population often correspond with change in land use, including expansion of urban areas, agriculture and increasing industrialization, which necessitate increasing the available amount of drinking water. As the surface water sources are under the pressure of pollution, it has become necessary to use groundwater at an increasing rate. Groundwater recharge can be abundant in ...

Journal: :Water 2021

Groundwater plays a significant role in the vitality of Great Lakes Basin, supplying water for various sectors. Due to interconnection groundwater and surface features this region, quality can be affected, leading potential economic, political, health, social issues region. resources have received less emphasis, perhaps due an “out sight, out mind” mentality. The incomplete characterization gro...

2017
Surina Esterhuyse Frank Sokolic Nola Redelinghuys Marinda Avenant Andrzej Kijko Jan Glazewski Lisa Plit Marthie Kemp Ansie Smit A Tascha Vos Michael J von Maltitz

Various biophysical and socio-economic impacts may be associated with unconventional oil and gas (UOG) extraction. A vulnerability map may assist governments during environmental assessments, spatial planning and the regulation of UOG extraction, as well as decision-making around UOG extraction in fragile areas. A regional interactive vulnerability map was developed for UOG extraction in South ...

Journal: :Journal of the National Science Foundation of Sri Lanka 2006

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