Готові списки джерел за темами / Ground Water contamination

Добірка наукової літератури з теми "Ground Water contamination"

Автор: Grafiati
Опубліковано: 6 вересня 2023

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Зміст

Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "Ground Water contamination".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Статті в журналах з теми "Ground Water contamination"

1

Verma, Sanjay Kumar, and Dr Ajay Kr Upadhyay. "Arsenic Contamination of Ground water and Health Risk." International Journal of Trend in Scientific Research and Development Volume-2, Issue-4 (June 30, 2018): 836–42. http://dx.doi.org/10.31142/ijtsrd14125.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

KRESSE, F. C. "Exploration for Ground-Water Contamination." Environmental & Engineering Geoscience xxii, no. 3 (August 1, 1985): 275–80. http://dx.doi.org/10.2113/gseegeosci.xxii.3.275.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Kiilerich, Ole, and Erik Arvin. "Ground Water Contamination from Creosote Sites." Groundwater Monitoring & Remediation 16, no. 1 (February 1996): 112–17. http://dx.doi.org/10.1111/j.1745-6592.1996.tb00578.x.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Ityel, Daniel. "Ground water: Dealing with iron contamination." Filtration & Separation 48, no. 1 (January 2011): 26–28. http://dx.doi.org/10.1016/s0015-1882(11)70043-x.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Schiffman, Arnold. "GROUND-WATER CONTAMINATION -A REGULATORY FRAMEWORK." Ground Water 26, no. 5 (September 1988): 554–58. http://dx.doi.org/10.1111/j.1745-6584.1988.tb00788.x.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Olivieri, Adam, Don Eisenberg, Martin Kurtovich, and Lori Pettegrew. "Ground‐Water Contamination in Silicon Valley." Journal of Water Resources Planning and Management 111, no. 3 (July 1985): 346–58. http://dx.doi.org/10.1061/(asce)0733-9496(1985)111:3(346).

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Assmuth, T. W., and T. Strandberg. "Ground water contamination at Finnish landfills." Water, Air, & Soil Pollution 69, no. 1-2 (July 1993): 179–99. http://dx.doi.org/10.1007/bf00478358.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

AKMAM, Wardatul, and Md Fakrul ISLAM. "Arsenic Contamination in Ground Water in Bangladesh." Studies in Regional Science 37, no. 3 (2007): 829–40. http://dx.doi.org/10.2457/srs.37.829.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Rosenfeld, Jeffrey K., and Russell H. Plumb. "Ground Water Contamination at Wood Treatment Facilities." Groundwater Monitoring & Remediation 11, no. 1 (February 1991): 133–40. http://dx.doi.org/10.1111/j.1745-6592.1991.tb00360.x.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Yates, Marylynn V. "Septic Tank Density and Ground-Water Contamination." Ground Water 23, no. 5 (September 1985): 586–91. http://dx.doi.org/10.1111/j.1745-6584.1985.tb01506.x.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Дисертації з теми "Ground Water contamination"

1

Halstead, John Michael. "Managing ground water contamination from agricultural nitrates." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54787.

Повний текст джерела
Анотація:
Ground water contamination from agricultural nitrates poses potential adverse health effects to a large segment of the rural population of the United States. Contamination is especially prevalent in livestock intensive areas, which produce large quantities of animal waste with substantial nitrogen content. In this study, potential management strategies for reducing nitrate contamination of ground water from agricultural sources were examined using an economic-physical model of a representative dairy farm in Rockingham County, Virginia. A mixed integer programming model with stochastic constraints on nitrate loading to ground water and silage production was used to simulate the impacts of various nitrate loading reduction strategies on estimated farm level net returns over variable costs. A survey of all dairy operations in the county was conducted to assist in specifying the mathematical programming model, identify current nutrient management and quality issues, and gauge farmers’ attitudes toward ground water quality and agricultural chemical use. Results of the model indicate that substantial reductions in current nitrate loadings are possible with relatively minor impacts on farmers’ net returns through the use of currently practiced approaches of cost sharing for manure storage facility construction and nutrient management planning. Greater loading reductions are achievable through presently untried policies of land use restrictions, bans on purchase of commercial fertilizer, and imposition of standards on loadings to ground water. These reductions are achieved, however, at higher costs in terms of reduced net returns. Study results indicate that a wide range of policy options exist for reducing nitrate loading to ground water; these reductions, while varying in cost, do not appear to come at the expense of eliminating the economic viability of the county dairy sector. Model results indicate that reductions in nitrate loading of 40 to 70 percent (on average) could be achieved with reductions in farmers’ net returns of one to 19 percent, respectively, when cost sharing for manure storage construction was provided. Explicit consideration was given to the annual variability in nitrate loading due to weather and other factors. The result was higher policy costs than when average loadings alone were considered.
Ph. D.
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Montague, David Joel. "Managing agricultural contamination of ground water: the institutional framework." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43408.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Aubin, Eric. "Impact of water table management on ground water contamination by two herbicides." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55410.

Повний текст джерела
Анотація:
Two field investigations were undertaken to study the role of water table management in reducing herbicide pollution of ground water. One of the three-year studies (1992-1995) was conducted in a sandy field near Joliette (Laurin farm), (Quebec) to monitor the herbicide metribuzin where potatoes were grown. Two water table management systems were evaluated, namely subsurface drainage and subirrigation. Soil and ground water samples were taken at two week intervals, once before and six times after the herbicide application.
The amount of rainfall received in the first few weeks following herbicide application is crucial in assessing the extent of ground water contamination. In 1992, fewer rainfall events occurred after the application as compared to 1993, so metribuzin leached slowly. In 1992, it appears that subirrigation reduced ground water contamination by a factor of 10 through enhanced degradation and the greater effect of dilution. However, the role of subirrigation in reducing the metribuzin contamination of ground water was negligible in 1993 due to considerable leaching soon after the application.
The second project was conducted in an organic soil in St-Patrice-de-Sherrington (Van Winden farm) where the herbicide prometryn was studied. Surface irrigation with a controlled water table was also used as a water table management system. One experimental unit was used for each of the three treatments (subirrigation, surface irrigation and subsurface drainage).
The herbicide application rate was greater at the Van Winden farm than in the Laurin farm (5.5 kg/ha versus 1.0 kg/ha). However, a higher adsorption coefficient of the organic soil minimized the leaching process. Ground water contamination was less extensive in the organic deposit. The effect of subirrigation in reducing ground water contamination was significant when the water table was shallow. Prometryn degradation was relatively slow during the summer. Moreover, significant amounts of prometryn carried-over into the soil after the winter season, so it appears to be a quite persistent herbicide in our climate.
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Anderson, Jacob. "Geochemical Tracers of Surface Water and Ground Water Contamination from Road Salt." Thesis, Boston College, 2013. http://hdl.handle.net/2345/3313.

Повний текст джерела
Анотація:
Thesis advisor: Rudolph Hon
The application of road de-icers has lead to increasing solute concentrations in surface and ground water across the northern US, Canada, and northern Europe. In a public water supply well field in southeastern Massachusetts, USA, chloride concentrations in ground water from an unconfined aquifer have steadily risen for the past twenty years. The objectives of this study are to understand spatial and temporal trends in road salt concentrations in order to identify contamination sources and fate. To this end, the methods of this project include field and lab work. Water samples were collected from surface, near-surface, and ground water from March 2012 to March 2013. The other major field data are specific conductance measurements from probes located in three piezometers. In the lab, all samples were analyzed for major ions with ion chromatography analysis. Additionally, trace elements were measured by inductively coupled plasma analysis on a subset of samples. The results of these hydrogeochemical procedures showed several important trends. First, the highest concentrations of sodium and chloride from near-surface samples were located near to roadways. Second, ground water samples taken from glacial sediments contained relatively high concentrations throughout the water column, whereas ground water samples from wetlands had high concentrations only near the surface. Third, there was no clear relationship between pH and cation concentrations. Finally, specific conductance data showed strong seasonal trends near to the surface, whereas values taken from deeper in the aquifer were steadily increasing. Based on these results, it is highly probable that road salt application is the dominate contamination source. The pathways of road salt in the watershed include runoff into surface water and infiltration into the vadose zone and ground water. Road salt appears to preferentially travel through glacial features rather than floodplain features. It is possible that sodium from road salt is sorbed to aquifer sediment and displaces other cations. However, the low values of trace metals suggest that cation exchange is not mobilizing heavy metals. Finally, the increasing specific conductance values deep in the aquifer suggest that road salt is retained within the aquifer and concentrations will likely increase in the future if the current road salt application procedures are continued
Thesis (MS) — Boston College, 2013
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Earth and Environmental Sciences
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Hussein, Maged M. "Impact of ground-water contamination on the Great Miami River basin /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu148794815862844.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Day, Stephen Wayne. "Ground water contamination from an abandoned landfill site in Delaware County, Indiana." Virtual Press, 1986. http://liblink.bsu.edu/uhtbin/catkey/474188.

Повний текст джерела
Анотація:
Groundwater contamination by landfill generated leachate is a problem that is increasingly addressed for proposed and existing landfill sites.This thesis examines groundwater contamination movement from the abandoned Delaware County Municipal landfill. The site is located in the crest of a highly permeable sand and gravel glacial esker which allows for rapid movement of ground water and any contaminants introduced into it.The landfill site was originally investigated in the late 1970's by Ed Lusch, a graduate student at the Ball State University Geology Department. That study showed some indications of ground water contamination movement to about 400 feet west of the site, in the direction of ground water flow. This indicated position of a contamination plume suggested that leachate, generated from the landfill site, had moved to that position since (or possibly before) the closing of the landfill in 1971.The present study, using a combination of surface resistivity methods, on-site test wells, and chemical analyses of ground water, attempted to determine the degree of contamination movement from the site since the original study and the extent to which the local aquifer had been affected. Results of this investigation revealed an apparent slow movement of leachate from the landfill westward towards the Mississinewa River, also in the direction of ground water flow. Surface resistivity methods of this study revealed the plume of contamination (indicated by resistivity "low" area) to now exist at approximately the same location as indicated in the earlier study, but to have expanded laterally. This investigation also found indications of the contamination plume well into the underlying fractured dolostone.Chemical analyses of nearby residential wells also revealed slightly elevated amounts of chloride, ammonia and specific conductivity in the ground water of the glacial esker south of the abandoned landfill site. The presence of three other dump sites, including a sludge dump, along the esker south of the landfill, offers questions as to the source of ground water contamination.Ball State UniversityMuncie, IN 47306
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Elmore, Andrew Curtis. "Monte Carlo simulation of ground water remediation at a Nebraska contamination site." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185706.

Повний текст джерела
Анотація:
Characterization of the effectiveness of ground water contamination remediation alternatives is complex due to uncertainties associated with the ground water system. This dissertation presents a Monte Carlo simulation model for stochastic characterization of the maximum concentration of contaminant remaining in an aquifer after the application of pump and treat remedial alternatives. The model is written in FORTRAN 77 for the Convex 240. The model uses a publicly available finite difference code for flow analysis and a commercially available method of characteristics transport code. Hydraulic conductivity fields are randomly generated using the turning bands method; initial concentration fields are conditionally simulated on measured and estimated concentration values; and retardation coefficient fields are negatively correlated to hydraulic conductivity using partition coefficients sampled from a log normal distribution. The model was applied to three pump and treat alternatives selected for consideration at a Nebraska contamination site. Two dimensional analysis of flow and transport was performed. Special treatment of flow boundary conditions was necessary due to site conditions and model restrictions. The probabilistic analyses of the resulting maximum concentration ensembles were used to demonstrate decision analysis at the site. Beta probability distributions were fitted to the maximum output ensembles. The decision tree model incorporated monetary values, human health considerations, and regulatory issues as well as probabilistic considerations. Illustration of the decision analysis procedure showed that the choice of the optimal remedial alternative was dependent on the monetary value assigned to noncarcinogenic and carcinogenic adverse human health risks.
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Uhlman, Kristine, and Janick Artiola. "Nitrate Contamination Potential in Arizona Groundwater: Implications for Drinking Water Wells." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011. http://hdl.handle.net/10150/156932.

Повний текст джерела
Анотація:
4 pp.
This fact sheet is to be taken from research conducted by Uhlman and Rahman and published on the WRRC web site as: "Predicting Ground Water Vulnerability to Nitrate in Arizona". Funded by TRIF and peer reviewed by ADEQ. It also follows on "Arizona Well Owner's Guide to Water Supply" and also "Arizona Drinking Water Well Contaminants" (part 1 already submitted, part 2 in process).
Arizona's arid environment and aquifer types allow for the persistence of nitrate contamination in ground water. Agricultural practices and the prevalence of septic systems contributes to this water quality concern, resulting in nitrate exceeding the EPA Maximum Contaminant Level (MCL) in several locations across the state. Working with known nitrate concentrations in 6,800 wells across the state, this fact sheet presents maps showing the probability of nitrate contamination of ground water exceeding the MCL. The importance of monitoring your domestic water supply well for nitrate is emphasized.
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Beck, Daniel S. "A ground water report on the Fernald, Ohio contamination in the Miami Valley Aquifer." Connect to resource, 1996. http://hdl.handle.net/1811/31770.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Waters, Lois Diane. "Relationships Between Hybrid Poplar Tree Extractives and Ground Water Contamination at a Phytoremediation Site." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/31583.

Повний текст джерела
Анотація:

In 1997, a phytoremediation program began at a creosote-contaminated former railroad tie yard in Oneida, Tennessee with the planting of over 1000 hybrid poplar trees onsite. Creosote, a mixture of hazardous chemicals composed of 85% polycyclic aromatic hydrocarbons (PAH) had entered the site soil and ground water. After planting, a seasonal ground water testing program began that monitored the progress of remediation by measuring the concentration of the 10 predominant PAHs in the contaminant plume: naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, chrysene, and benzo(b)fluoranthene. The concentrations of these compounds steadily decreased over time, but the role the trees played in the remediation was unclear.

In order to gain a clearer understanding of the role the trees played in contaminant remediation, chemical analysis of tree tissue began. It was not known whether the trees were taking up PAH contaminants or their metabolites or if the rhizosphere zone created by the trees simply enhanced the ability of the site microflora to degrade the PAH. The objectives of this research were to (1) develop a suitable method for the chemical analysis of tree tissue collected from a field site, (2) determine if there were any chemicals not usually found in poplar trees that occurred in the trees growing over contamination, (3) determine if bud, bark, and twig tissue differed in their ability to predict ground water contamination, and (4) determine if a spatial correlation existed between the aromatic compounds in the tree tissue and the ground water total PAH plume.

Two types of tree tissue/ground water comparisons were performed: spatial distribution of isoeugenol concentration in tree tissue with spatial distribution of total PAH in ground water over the area of interest; and the spatial distribution of the quantity of aromatic compounds in tree tissue with the spatial distribution of total PAH concentration in ground water. Due to unit discrepancies between the quantities of interest, all comparisons were made on a percentile basis.

Initial tree sampling revealed that several compounds not usually present in poplar trees occurred only in those trees growing over contamination. In the first part of this study, the concentration of one of these chemicals, the substituted phenol isoeugenol, was compared with the concentration of total PAH in ground water from samples collected from February-March 2002. The bark tissue percentiles fell within 20 percentiles of ground water total PAH concentrations in 60% of the study area. The twig tissue showed slightly better agreement, with 67% of the study area differing from ground water by twenty percentiles or less.

The second comparison took place over three sampling events: March 2001, July 2001, and February-March 2002. The number of unique aromatic compounds in bark, bud, and twig tissue was compared with the total PAH concentration in ground water. Twig tissue aromatic compound content was the most accurate predictor of ground water contamination among the tissue types. After excluding those chemicals likely to be interferences from consideration, twig tissue aromatic content agreed with ground water total PAH concentration to within 20 percentiles over 2/3 or more of the study area during each sampling event, suggesting the potential uptake of PAHs or their microbial metabolites as a mechanism of phytoremediation at the site.
Master of Science

Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Книги з теми "Ground Water contamination"

1

Collins, AG, and AI Johnson, eds. Ground-Water Contamination: Field Methods. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 1988. http://dx.doi.org/10.1520/stp963-eb.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Center for Environmental Research Information (U.S.), ed. Ground water: Contamination and methodology. Lancaster, Pa: Technomic Pub. Co., 1990.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Wang, Ching-Pi. Ground water contamination assessment: Acme, Washington. [Olympia, Wash.]: Washington State Dept. of Ecology, 1989.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Ragone, Stephen E. Toxic waste--ground-water contamination program. [Reston, Va.]: U.S. Geological Survey, 1988.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Ragone, Stephen E. Toxic waste--ground-water contamination program. [Reston, Va.]: U.S. Geological Survey, 1988.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Jadavpur University. School of Environmental Studies. and Dhaka Community Hospital, eds. Ground water arsenic contamination in Bangladesh. Calcutta: School of Environmental Studies, Jadavpur University & Dhaka Community Hospital, Dhaka, 2000.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Ragone, Stephen E. Toxic waste--ground-water contamination program. [Reston, Va.]: U.S. Geological Survey, 1988.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Ragone, Stephen E. Toxic waste--ground-water contamination program. [Reston, Va.]: U.S. Geological Survey, 1988.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

S, Rifai H., and Newell Charles J, eds. Ground water contamination: Transport and remediation. Englewood Cliffs, N.J: PTR Prentice Hall, 1994.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Ragone, Stephen E. Toxic waste--ground-water contamination program. [Reston, Va.]: U.S. Geological Survey, 1988.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Частини книг з теми "Ground Water contamination"

1

Türkman, A. "Nitrate Pollution in Ground Water." In Nitrate Contamination, 395–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76040-2_29.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Kim, Nancy K., Anthony J. Grey, Ronald Tramontano, Charles Hudson, and Geoffrey Laccetti. "Two Ground Water Contamination Problems." In ACS Symposium Series, 530–40. Washington, DC: American Chemical Society, 1986. http://dx.doi.org/10.1021/bk-1986-0315.ch030.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Dillon, P. J., S. R. Ragusa, and S. B. Richardson. "Biochemistry of a Plume of Nitrate-Contaminated Ground Water." In Nitrate Contamination, 173–80. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76040-2_12.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Rock, C. A., S. Irrinki, and P. S. Pinkham. "Elimination of Ground-Water Contamination by Septic-Tank Effluent." In Nitrate Contamination, 415–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76040-2_31.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Ganoulis, J. G. "Nitrate Contamination of Surface and Ground Water in Greece." In Nitrate Contamination, 55–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76040-2_4.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Kelly, W. E., B. Curtis, and D. Adelman. "Nitrate Ground-Water Modeling for Agricultural and Other Nonpoint Sources." In Nitrate Contamination, 97–113. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76040-2_7.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Cohen, David B. "Ground Water Contamination by Toxic Substances." In ACS Symposium Series, 499–529. Washington, DC: American Chemical Society, 1986. http://dx.doi.org/10.1021/bk-1986-0315.ch029.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Weisenburger, D. D. "Potential Health Consequences of Ground-Water Contamination by Nitrates in Nebraska." In Nitrate Contamination, 309–15. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76040-2_23.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Chilton, P. J., and S. S. D. Foster. "Control of Ground-Water Nitrate Pollution in Britain by Land-Use Change." In Nitrate Contamination, 333–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76040-2_25.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Gillham, R. W. "Nitrate Contamination of Ground Water in Southern Ontario and the Evidence for Denitrification." In Nitrate Contamination, 181–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76040-2_13.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Тези доповідей конференцій з теми "Ground Water contamination"

1

Woerner, Joerg, Sonja Margraf, and Walter Hackel. "Remediation of a Uranium-Contamination in Ground Water." In The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7270.

Повний текст джерела
Анотація:
The former production site of NUKEM where nuclear fuel-elements were developed and handled from 1958 to 1988 was situated in the centre of an industrial park for various activities of the chemical and metallurgical industry. The size of the industrially used part is about 300.000m2. Regulatory routine controls showed elevated CHC (Chlorinated Hydro-Carbons) values of the ground water at the beginning of the 1990’s in an area which represented about 80.000 m2 down-gradient of locations where CHC compounds were stored and handled. Further investigations until 1998 proved that former activities on the NUKEM site, like the UF6 conversion process, were of certain relevance. The fact that several measured values were above the threshold values made the remediation of the ground water mandatory. This was addressed in the permission given by the Ministry for Nuclear Installations and Environment of Hesse according to §7 of the German atomic law in October 2000 [1]. Ground water samples taken in an area of about 5.000 m2 showed elevated values of total Uranium activity up to between 50 and 75 Bq/l in 2002. Furthermore in an area of another 20.000m2 the samples were above threshold value. In this paper results of the remediation are presented. The actual alpha-activities of the ground waters of the remediation wells show values of 3 to 9Bq/l which are dominated by 80 to 90% U-234 activity. The mass-share of total Uranium for this nuclide amounts to 0,05% on average. The authority responsible for conventional water utilisation defined target values for remediation: 20μg/l for dissolved Uranium and 10μg/l for CHC [2]. Both values have not yet been reached for an area of about 10.000 m2. The remediation process by extracting water from four remediation wells has proved its efficiency by reduction of the starting concentrations by a factor of 3 to 6. Further pumping will be necessary especially in that area of the site where the contaminations were found later during soil remediation activities. Only two wells have been in operation since July 2002 when the remediation technique was installed and an apparatus for direct gamma-spectroscopic measurement of the accumulated activities on the adsorbers was qualified. Two further remediation wells have been in operation since August 2006, when the installed remediation technique was about to be doubled from a throughput of 5 m3/h to 10 m3/h. About 20.000 m3 of ground water have been extracted since from these two wells and the decrease of their Uranium-concentrations behaves similar to that of the two other wells being extracted since the beginning of remediation. Both, total Uranium-concentrations and the weight-share of the nuclides U-234, U-235 and U-238 are measured by ICP-MS (Inductively Coupled Plasma – Mass Spectrometry) besides measurements of Uranium-Alpha-Activities in addition to the measurement of CHC components of which PCE (Perchlor-Ethene) is dominant in the contaminated area. CHC compounds are measured by GC (Gas Chromatography). Down-gradient naturally attenuated products are detected in various compositions. Overall 183.000m3 of ground water have been extracted. Using a pump & treat method 11 kg Uranium have been collected on an ion-exchange material based on cellulose, containing almost 100 MBq U-235 activity, and almost 15 kg of CHC, essentially PCE, were collected on GAC (Granules of Activated Carbon). Less than 3% of the extracted Uranium have passed the adsorber-system of the remediation plant and were adsorbed by the sewage sludge of the industrial site’s waste water treatment. The monthly monitoring of 19 monitoring wells shows that an efficient artificial barrier was built up by the water extraction. The Uranium contamination of two ground water plumes has drastically been reduced by the used technique dependent on the amounts of extracted water. The concentration of the CHC contamination has changed depending on the location of temporal pumping. Thereby maximum availability of this contaminant for the remediation process is ensured. If locations with unchanged water quality are detected electrochemical parameters of the water or hydro-geologic data of the aquifer have to be taken into further consideration to improve the process of remediation.
Стилі APA, Harvard, Vancouver, ISO та ін.
2

da Cunha, Kenya Moore Dias, Helenes Henderson, Paul Ward, and Bruce M. Thomson. "Ground Water Contamination from Past Uranium Mining: Cove Wash, AZ." In World Environmental And Water Resources Congress 2012. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412312.090.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Fasesan, O. A., L. R. Heinze, and I. L. Tesalonika. "Ground-Water Contamination Reduction by Use of Poz Cementing." In Canadian International Petroleum Conference. Petroleum Society of Canada, 2006. http://dx.doi.org/10.2118/2006-117.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Sharma, Prabhat, Avanish Mishra, Bambam Kumar, and S. P. Gaba. "Experimental study of water contamination detection using ground penetrating radar." In 2016 11th International Conference on Industrial and Information Systems (ICIIS). IEEE, 2016. http://dx.doi.org/10.1109/iciinfs.2016.8263031.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Troiano, John. "Geographical Basis for Regulating Pesticide Use That Prevents Contamination of California's Ground Water." In World Environmental and Water Resources Congress 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41173(414)426.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Hallbauer‐Zadorozhnaya, Valeriya Y., and Edgar Stettler. "Time Domain Electromegnetic Soundings to Delineate Hydrocarbon Contamination of Ground Water." In Symposium on the Application of Geophysics to Engineering and Environmental Problems 2009. Environment and Engineering Geophysical Society, 2009. http://dx.doi.org/10.4133/1.3176701.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Hallbauer-Zadorozhnaya, V., and E. Stettler. "Time Domain Electromagnetic Soundings to Delineate Hydrocarbon Contamination of Ground Water." In 22nd EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems. European Association of Geoscientists & Engineers, 2009. http://dx.doi.org/10.3997/2214-4609-pdb.157.sageep026.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Brian Hughes, W. "Use Of Marine-Seismic Profiling To Study Ground-Water Contamination At Aberdeen Proving Ground, Maryland." In 5th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems. European Association of Geoscientists & Engineers, 1992. http://dx.doi.org/10.3997/2214-4609-pdb.210.1992_010.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Hughes, W. Brian. "Use of Marine‐Seismic Profiling to Study Ground‐Water Contamination at Aberdeen Proving Ground, Maryland." In Symposium on the Application of Geophysics to Engineering and Environmental Problems 1992. Environment and Engineering Geophysical Society, 1992. http://dx.doi.org/10.4133/1.2921934.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Yuehua Jiang and Yun Li. "Characteristics of ground penetrating radar in leakage contamination of Guiyang Shengfu gasoline station." In 2011 International Symposium on Water Resource and Environmental Protection (ISWREP). IEEE, 2011. http://dx.doi.org/10.1109/iswrep.2011.5893631.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Звіти організацій з теми "Ground Water contamination"

1

Unknown. GROUND WATER CONTAMINATION. Office of Scientific and Technical Information (OSTI), September 1999. http://dx.doi.org/10.2172/769315.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Munter, J. A., and D. L. Maynard. Extent of ground-water contamination in Alaska. Alaska Division of Geological & Geophysical Surveys, 1987. http://dx.doi.org/10.14509/2439.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Munter, J. A. Ground-water contamination at Peters Creek, municipality of Anchorage, Alaska: ground-water occurrence and movement. Alaska Division of Geological & Geophysical Surveys, 1986. http://dx.doi.org/10.14509/2423.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Denny, S. C., J. M. Journeay, and D. M. Allen. Susceptibility of ground water to contamination, southern Gulf Islands, British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2006. http://dx.doi.org/10.4095/222640.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Author, Not Given. (Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio). Office of Scientific and Technical Information (OSTI), March 1992. http://dx.doi.org/10.2172/5218240.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Thompson, Bill. (Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio). Office of Scientific and Technical Information (OSTI), October 1991. http://dx.doi.org/10.2172/5118624.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Author, Not Given. (Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio). Office of Scientific and Technical Information (OSTI), March 1992. http://dx.doi.org/10.2172/5177512.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Author, Not Given. (Environmental investigation of ground water contamination at Wright- Patterson Air Force Base, Ohio). Office of Scientific and Technical Information (OSTI), October 1991. http://dx.doi.org/10.2172/7067109.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Author, Not Given. (Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio). Office of Scientific and Technical Information (OSTI), April 1992. http://dx.doi.org/10.2172/7076383.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

HUGHES, ROBERT C., CHAD E. DAVIS, and MICHAEL L. THOMAS. Final Report for the SEED Project: ''Inexpensive Chemresistor Sensors for Real Time Ground Water Contamination Measurement''. Office of Scientific and Technical Information (OSTI), April 2002. http://dx.doi.org/10.2172/808587.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Також вас можуть зацікавити розширені добірки на тему "Ground Water contamination" для конкретних типів джерел:
Статті в журналах Дисертації Книги
Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!

До бібліографії