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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Concl...

Urban gardening and agriculture is of increasing interest as a land revitalization option for interim as well as long term use, and is receiving increased attention, funding, and promotiion under EPA's Brownfields land redevelopment efforts. A broad range of state and local gove...

The focus of this paper is the progress to reach our present understandings of the needs and methods for "Soil protection." Sloil is critical to human life, needed for production of foods safe for lifetime consumption. Soils must be protected for support of human societies. Unti...

A pilot-scale soil washing process, patented by BioTrol, Inc., was demonstrate on soil contaminated by wood treating waste, primarily pentachlorophenol (PCP) and creosote-derived polynuclear aromatic hydrocarbons (PAHs). Although soil washing was the main object of this demonstra...

Mining nd smelting of Pb, Zn and Cd ores have caused widespread soil contamination in many countries. In locations with severe soil contamination, and strongly acidic soil or mine waste, ecosystems are devastated. Research has shown that An phytotoxicity, Pb-induced phosphate def...

The focus of this paper is the progress to reach our present understandings of the needs and methods for "Soil protection." Soil is critical to human life, needed for production of foods safe for lifetime consumption. Soils must be protected for support of human societies. Until...

Background: Toxoplasma gondii infection can be acquired through ingestion of infectious tissue cysts in undercooked meat or environmental oocysts excreted by cats. This cross-sectional study assessed environmental risk factors for T.gondii infections and an association between la...

Toxoplasma gondii infection can be acquired through ingestion of undercooked meat or environmental oocysts excreted by cats. This cross-sectional study of 206 adults in the Durham-Chapel Hill, North Carolina metropolitan area had two objectives: 1) to assess environmental risk fa...

Heavy metals in soils can comprise risk through plant uptake or soil ingestion. Recent research results and progress in understandings of risks and methods for soil metal remediation will be presented. Beneficial use of composts/bosolids plus limestone to remediate metal killed e...

Former sugarcane lands on the Island of Hawaii have elevated soil arsenic (As) from historical use of arsenical pesticides. The bioaccessible fraction of total As (As<SUB>TOT</SUB>), a measure of the potential for human As uptake by incidental ingestion of soil, is used in the a...

<br>Cadmium consumed in foods grown on soils contaminated by industrial Cd+Zn discharge has caused renal tubular dysfunction in <br>exposed humans in discrete situations. However, lack of understanding about environmental Cd has caused wide concern that general<br>populations may...

<p>Phytoremediation is a low-cost method of using plants to degrade, volatilize or sequester organic and metal pollutants that has been used in efforts to remediate sites contaminated with polycyclic aromatic hydrocarbon (PAH) refinery wastes. Non-native plant species aggressivel...

Background: Speciation analysis is essential when evaluating risks from arsenic (As) exposure. In an oral exposure scenario, the importance of presystemic metabolism by gut microorganisms has been evidenced with <I>in vivo</I> animal models and <I>in vitro</I> experiments with ...

Hazards of soil-borne Pb to wild birds may be more accurately quantified if the bioavailability of that Pb is known. To better understand the bioavailability of Pb to birds, we measured blood Pb concentrations in Japanese quail (Coturnix japonica) fed diets containing Pb-contami...

The Volume Reduction Unit (VRU), which was developed by EPA, is a mobile, pilot-scale soil washing system for stand-alone field use in cleaning soil contaminated with hazardous substances. Removal efficiencies depend on the contaminant as well as the type of soil. Soil washing...

This process is a two-stage photolytic and biological soil detoxification process that has application to treatment of soils contaminated with polychlorinated biphenyls (PCBs) and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). The process may be used in-situ for treatment of shal...

Soil contamination often results from improper land disposal, storage, treatment, and spills of hazardous waste in liquid or solid form. In order to properly address the levels of pollutants up to which contaminated soil needs to be cleaned, it is necessary to estimate the magnit...

Until somewhat recently there was limited awareness about the impact of soils on human health, ecosystems, and economy. Only in the second half of the twenty century the world awaked for the poor condition of soils, and to its several threats (e.g. soil contamination), as well as...

A study was performed investigating the feasibility of applying the DUOX™ chemical oxidation technology to chlorinated solvent contaminated media at the Roosevelt Mills site in Vernon, Connecticut. The Roosevelt Mills site is a former woolen mill that included dry cleaning operat...

The overall objective of this laboratory scale research project was to identify a remediation approach with stabilizing agents that would be capable of immobilizing PFAS in two Superfund site soils. The project team evaluated both natural and commercially available PFAS stabilizi...

In vitro bioaccessibility assays are often utilised to determine the potential human exposure to soil contaminants through soil ingestion. Comparative studies have identified inconsistencies in the results obtained with different in vitro assays. In this study we investigated the...

We investigated magnetic susceptibility (MS) variations in hydrocarbon contaminated sediments. Our objective was to determine if MS can be used as an intrinsic bioremediation indicator due to the activity of iron-reducing bacteria. A contaminated and an uncontaminated core were r...

Nutrient pollution is one of the major worldwide water quality problems, resulting in environmental and public health issues. Agricultural activities are the main source of nutrient release emissions, and the livestock industry has been proven to be directly related to the presen...

Sugarcane bagasse was partially acetylated to enhance its oil-wicking ability in saturated environments while holding moisture for hydrocarbon biodegradation. The water sorption capacity of raw bagasse was reduced fourfold after treatment, which indicated considerably increased ...

Abstract: This contribution discusses how to develop and run tools to support the prioritization of brownfield investments or actions on a regional scale - an important level of land-use management, where, however, we find hardly available tool support to decision makers to steer...