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Monday, May 11, 2020 | History

1 edition of Contamination of ground water by toxic organic chemicals. found in the catalog.

Contamination of ground water by toxic organic chemicals.

Contamination of ground water by toxic organic chemicals.

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  • 18 Currently reading

Published by Council on Environmental Quality, For sale by the Supt. of Docs., U.S. Govt. Print. Off. in [Washington, D.C.] .
Written in English

    Subjects:
  • Groundwater -- Pollution -- United States.,
  • Organic water pollutants -- United States.,
  • Drinking water -- United States -- Contamination.

  • Edition Notes

    ContributionsCouncil on Environmental Quality (U.S.)
    The Physical Object
    Paginationxxiv, 84 p. :
    Number of Pages84
    ID Numbers
    Open LibraryOL17798624M

    Groundwater contamination by organic chemicals27 in industrializing countries ). Aliphatic hydrocarbons penetrated through an 8 m thick unsaturated zone and reached the water table in less than two days. Thus while metals may not be very mobile in this area, some organic compounds may travel rapidly to contaminate groundwater reserves. Contamination of water resources comes in the form of chemical, biological, and physical pollution. Chemical pollution includes things such as toxic metals, organic compounds, acidic waters from mining activities and industry, pharmaceuticals and many other chemical compounds from industries and wastewater treatment plants.

    Jan 19,  · The Council on Environmental Quality said in a report to President Carter yesterday that it had been able to document that the ground water in much of the country was being threatened by. The soil is the medium through which pollutants originating from human activities, both in agriculture and industry, move from the land surfaces to groundwater. Polluting substances are subject to complex physical, chemical and biological transformations during their movement through the soil. Their displacement depends on the transport properties of the water-air-soil system and on the Reviews: 1.

    Groundwater contamination by organic pollutants has become an important topic since the early s as a result of the detection of large-scale contamination events. Since that time, substantial research efforts have been focused on developing new and innovative technologies and management approaches to clean up organic-contaminated sites. Seepage water near two disposal areas contains toxic organic chemicals, such as trichloroethylene (TCE), dichloroethane, and 1,1,1 trichlorethane. None of the affected water is used for human consumption. Remedial action to date includes construction of a slurry wall and landfill covers as well as pumping and treating contaminated ground water.


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Contamination of ground water by toxic organic chemicals Download PDF EPUB FB2

Get this from a library. Contamination of ground water by toxic organic chemicals. [Council on Environmental Quality (U.S.);].

The manufactured inorganic fertilizers widely used in developed countries, and finding increasing usage in all countries, also pose the threat of nitrate contamination of groundwater systems. Pesticide and herbicide application provides a source of numerous toxic organic chemicals to groundwater yepi100.xyz: Hongqi Wang, Shuyuan Liu, Shasha Du.

A total of Contamination of ground water by toxic organic chemicals. book groundwater samples were preconcentrated by solid-phase extraction (SPE) using XAD-2 as the resin material.

This treatment effectively eliminated sample matrix toxicity caused by inorganic salts and natural organic compounds and produced an aqueous concentrate of the nonvolatile chemical Cited by: The aim of the present study was to describe the occurrence and distribution of toxicity related to organic chemical contaminants in the leachate plume downgradient of the Grindsted Landfill (Denmark).

A total of 27 groundwater samples were preconcentrated by solid-phase extraction (SPE) using XAD-2 as the resin material. This treatment effectively eliminated sample matrix toxicity caused by Cited by: Abstract. Until recently it was widely held that groundwater is relatively uncontaminated with toxic chemicals as compared to surface water, and in cases where contamination was detected it was assumed that the contaminants posed no im­mediate hazard to people’s yepi100.xyz by: 4.

The vadose zone serves as a medium for the transport of toxic organic chemicals from the soil surface to groundwater. Thus, the vadose zone can itself be considered a source of groundwater pollution; remediation of contaminated groundwater will never be complete as long as mobile contaminants remain in the vadose yepi100.xyz by: 2.

In some regions widespread contamination by organic compounds exists in shallow groundwater. Organic compounds in ground- water can also cause major changes in the chemical behavior of inorganic constituents because of inorganic-organic reac- tions.

Mar 02,  · Industrial discharges, urban activities, agriculture, groundwater pumpage, and disposal of waste all can affect groundwater quality.

Contaminants can be human-induced, as from leaking fuel tanks or toxic chemical spills. Pesticides and fertilizers applied to lawns and crops can accumulate and migrate to the water table. These compounds are by far the most prevalent organic contaminants in subsurface and groundwater all over the world because of the high amount of production and use during the past few decades[5].

Concerns about contamination continue, as several Grumman wells test positive for volatile organic chemicals. In the late s, Grumman is hooked up to Bethpage Water district water because of contamination issues. Inthe Naval Weapons Industrial Reserve Plant and Grumman sites are added to the state’s hazardous waste Superfund list.

use of the land is intensive, ground water is espe-cially vulnerable. Virtually any activity whereby chemicals or wastes may be released to the envi-ronment, either intentionally or accidentally, has the potential to pollute ground water.

When ground water becomes contaminated, it is difficult and expensive to clean up. Polymerization is effective in immobilizing organic monomers. However, the chemicals added to the contaminants in the groundwater may react to form toxic by-products.

Solidification methods used for treatment of soils also can immobilize contaminants. Mobilization of contaminants is accomplished by soil flushing or vacuum extraction.

The contamination of the environment (soil/water/air) by various toxic pollutants released from several natural as well as anthropogenic activities and its adverse effects on living entities. This national assessment of 55 volatile organic compounds (VOCs) in ground water gives emphasis to the occurrence of VOCs in aquifers that are used as an important supply of drinking water.

In contrast to the monitoring of VOC contamination of ground water at point-source release sites, such as landfills and leaking underground storage tanks. In any groundwater contamination investigation it is essential to obtain the background concentration of the chemical constituents of concern, particularly those that might be common both to the local groundwater and a contaminant.

As mentioned previously, the water in shallow or surficial aquifers can undergo substantial fluctuations in chemical quality. Jul 10,  · In most discussions in the media regarding Camp Lejeune water contamination, often the focus is given only to 4 core chemicals – TCE, PCE, benzene and vinyl chloride.

While these were prevalent in extraordinary amounts in the groundwater and soil for decades at Lejeune, they are not the only chemicals that were found. @article{osti_, title = {Toxicity of organic chemical pollution in groundwater downgradient of a landfill (Grindsted, Denmark)}, author = {Baun, A.

and Jensen, S.D. and Bjerg, P.L. and Christensen, T.H. and Nyholm, N.}, abstractNote = {The aim of the present study was to describe the occurrence and distribution of toxicity related to organic chemical contaminants in the leachate plume.

However, a few decades ago dumping of industrial organic chemicals at a waste site was common practice, storage tanks with gasoline and petrol were usually leaking into the underlying soil, and agricultural chemicals were spread over the land without considering that groundwater might be polluted by their application and rendered yepi100.xyz: C.A.J.

Appelo, Dieke Postma. Aug 12,  · While a large number of synthetic organic compounds are harmless, some are toxic and pose serious environmental and human health risks. Effects of contamination of environmental soil with toxic synthetic organic compounds include the poisoning of animals and plants, altering of ecosystems, and human health yepi100.xyz by: Global Contamination Trends of Persistent Organic Chemicals provides comprehensive coverage of spatial and temporal trends of classical and emerging contaminants in aquatic, terrestrial, and marine ecosystems, including the Arctic and Antarctic ecosystems.

Compiled by an international group of experts, this volume covers. Jun 23,  · Phytoremediation, the use of plants to remediate environmental media, is being pursued as a new approach for the cleanup of contaminated soils and waters, including groundwater.

Plant-assisted bioremediation, sometimes referred to as a type of phytoremediation, involves the interaction of plant roots and the microorganisms associated with these root systems to re- diate soils containing 1/5(1).Organic compounds can be a major pollution problem in groundwater.

Their presence in water can create a hazard to public health and the environment. One of the most common sources for BTEX-contamination of soil and groundwater are spills involving the release of petroleum products such as gasoline, diesel fuel and lubricating and heating oil.3 Systemic Exposures to Volatile Organic Compounds and Factors Influencing Susceptibility to Their Effects When evaluating health effects of chemicals, it is important to understand how they enter and are distributed in the body (systemic exposure) and how the body handles them and their metabolites.