soil testing Articles
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Treatment of Oil-Contaminated Soils for Identification and Classification
An experimental investigation was performed to evaluate the effects of oil contamination on soils and to establish a methodology to identify and classify contaminated soils. Identification and classification tests were performed before treatment, cleaning, stabilization, or disposal of contaminated soils.There are no standards for identification and classification of contaminated soils. ...
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Metal Contaminated Soils Fixation
Treatment of Metal Contaminated Soils The EPA requires a Toxicity Characteristic Leaching Procedure (TCLP) test to determine if metal contaminated soils needs to be managed as hazardous or non-hazardous waste. Soils exhibiting hazardous characteristics need to be disposed of at a facility permitted for that material at a high cost. Soils treated in the field prior to off-site disposal can be ...
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Soil Contamination and Possible Threats to Human Health
In 2007, the city of Salisbury, North Carolina, purchased a piece of land that was the location of a former service station. The property had been given a clean bill of health in 1991 and again in 2007 just before the property was purchased. Last year, the city began site preparations to build a new central office for the local schools when soil contamination was found. It turns out seven ...
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TCE Hot Spots have California Residents Concerned
For years, many people living near the Moffett Federal Airfield by Mountain View, California, have had concerns over toxic chemicals known to be in the soil and groundwater in the area. After a recent report by the U.S. Environmental Protection Agency (EPA), some residents now admit to being scared. The EPA has found higher than expected levels of trichloroethylene, also known as TCE, in the air ...
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Mobilization assessment and possibility of increased availability of PAHs in contaminated soil using column tests
Surfactants are well known to increase solubility/mobility of hydrocarbons and can be used to remediate contaminated water and soil. We wanted to explore if Ivey sol R 106 used at less than the critical micelle concentration (CMC) could effectively mobilize PAH (polycyclic aromatic hydrocarbons) from contaminated soil. The first step was to establish a measurement technique. Hence, a column ...
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Deriving site‐specific soil clean‐up values for metals and metalloids: Rationale for including protection of soil microbial processes
Although it is widely recognized that microorganisms are essential for sustaining soil fertility, structure, nutrient cycling, groundwater purification and other soil functions, soil microbial toxicity data were excluded from the derivation of Ecological Soil Screening Levels (Eco‐SSL) in the United States. Among the reasons for such exclusion were claims that microbial toxicity tests were too ...
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CPT cone selection
Introduction Cone selection is often not given much thought when selecting equipment for a Cone Penetration Testing (CPT) job. It is, however, quite important to consider the soil type that will be encountered as well as the investigation aims of the project. The CPT cone used can have huge impacts on the resulting data quality and applicability and should therefore be carefully considered. This ...
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Quantitative risk assessment for contaminated sites in Spain
Environmental Quantitative Risk Assessment is one of the key factors in the Decision Making Process for contaminated sites. Numerous decisions have to be made before, during and after conducting a quantitative risk assessment.Risk assessment is based on the information gathered previously: Historical information (Phase I) Site characterization (Phase II) Toxicological ...
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