نتایج جستجو برای: groundwater pollution

تعداد نتایج: 95833  

Journal: :Environment international 2016
Zhaoyang Liu Yonglong Lu Tieyu Wang Pei Wang Qifeng Li Andrew C Johnson Suriyanarayanan Sarvajayakesavalu Andrew J Sweetman

Perfluoroalkyl acids (PFAAs) can be released to water bodies during manufacturing and application of PFAA-containing products. In this study, the contamination pattern, attenuation dynamics, sources, pathways, and risk zoning of PFAAs in surface and ground water was examined within a 10km radius from a mega-fluorochemical industrial park (FIP). Among 12 detected PFAAs, perfluorooctanoic acid (P...

2000
George J. Kraft

Nitrate is Wisconsin’s most common groundwater pollutant. Agriculture is the largest nitrate source, accounting for about 90% of that which leaches to groundwater (Shaw, 1994). Only recently have the university and state agencies put together sufficient pieces of the nitrate puzzle to realize the extent of nitrate pollution (e.g., Central Wisconsin Groundwater Center, 1994; LeMasters and Baldoc...

Journal: :journal of advances in environmental health research 0
ali almasi department of environmental engineering, school of public health, social development and health promotion research center, kermanshah university of medical science, kermanshah iran rouhollah shokri department of environmental engineering, abadan school of medical sciences, abadan, iran rasool momenzadeh department of environmental health engineering, kerman university of medical sciences, kerman, iran shima rezaei environmental health research center, kurdistan university of medical sciences, sanandaj, iran ali jamshidi water treatment plant, water and wastewater company, ilam, iran razieh yazdizadeh department of environmental pollution, science and research branch, islamic azad university, ahvaz, iran

nitrate has been the most common chemical contaminant in water resource. this ion is introduced into the water via different ways, but more items of nitrate pollution was connected with farming-based drainage and sewage effluent. in this descriptive-analytical study, groundwater nitrate and nitrite concentrations of 8 wells on dehloran, ilam, iran, were analyzed in 2015 to determine the causes ...

2005
G. Kovačič

Slovenian karst areas extend over 43% of the country; limestones and dolomites of the Mesozoic era prevail. In Slovenia karst groundwater contributes up to 50% of the total drinking water supply. The quality of water is very high, despite the fact that it is extremely vulnerable to pollution. The present article is a study and a review of the potential and actual sources of pollution to the gro...

2001
S. Safiullah

In the deltaic plain of the Ganges-Meghna-Brahmaputra rivers, arsenic concentrations in groundwater commonly exceed regulatory limits (50 μg l) because FeOOH is microbially reduced and releases its sorbed load of arsenic to groundwater. Neither pyrite oxidation nor competitive exchange with fertilizer-phosphate contribute to arsenic pollution. The most intense reduction, and so severest polluti...

Journal: :international journal of environmental research 0

groundwater is the main source of potable water in most areas of mazandaran province, like sari and babol city. thus the safety of groundwater supplies is very important in these regions. unfortunately attention to groundwater quality has remained limited in iran. in recent years, the growth of industry, technology, population, and water use has increased the stress upon both land and water res...

2015
Chia-Nung Li Chien-Wen Lo Wei-Chiang Su Tsung-Yu Lai

To see whether the surrounding real estate price after soil and groundwater pollution remediation will revert to the level before the risk of implicit pollution, this paper uses research methods, such as the hedonic price method and contingent valuation method for analysis. The results of empirical analysis reveal that the hedonic price method will be restricted by trade cases around pollution ...

2015
Dennis Guignet Rachel Northcutt Patrick Walsh

There are few studies examining the impacts of groundwater quality on residential property values. Using a unique dataset of groundwater well tests, we link residential transactions to home-specific contamination levels and undertake a hedonic analysis of homes in Lake County, Florida; where groundwater pollution concerns stem primarily from agricultural runoff. We find that testing and contami...

2017
K. Erdlenbruch M. Tidball G. Zaccour Katrin Erdlenbruch Mabel Tidball Georges Zaccour

This paper constructs a dynamic game model to address the following groundwater management problem, where quantity and quality of the water are taken into account. A group of farmers overexploits a groundwater stock and causes excessive pollution. A water agency wishes to regulate the farmers' activity, in order to reach a minimum level of quantity and quality but is subject to a budget constra...

2015
Donatella Caniani Donata Serafina Lioi Ignazio M. Mancini Salvatore Masi

Groundwater is an important source of water. Since the control and removal of pollution are expensive, it is essential to identify the possible sources of contamination and to correctly classify groundwater on the basis of its intrinsic and integrated vulnerability. In the last years, many fuzzy models have been developed. There is a lack, however, of studies concerning the application of fuzzy...

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