surface contamination Articles
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Quantitative Assessment of Regional Rock Aquifers, South-Western Quebec, Canada
The population of the St. Lawrence Lowlands platform in south-western Quebec, Canada, is heavily dependent on groundwater. The present study summarizes the quantity, quality and sustainability estimations of the groundwater resources found mainly in sedimentary rock aquifers. Results show that the regional groundwater flow in the considered domain of 1,500 km2 is 97.7 Mm3/y with: 86.6% ...
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Monitoring leachate composition at a municipal landfill site in New Delhi, India
Most of the landfills in developing countries do not have any liner at the base, or a drainage layer or a proper top cover, which results in the potential problem of groundwater/surface water contamination due to the leachate. Hence, to decide whether the leachate is to be collected and treated, or may be allowed to discharge into the adjoining soil or public sewer or surface waterbody, it is ...
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I need a Phase I Environmental site assessment (Phase I ESA) Who do I call?
A Phase I Environmental Site Assessment (Phase I ESA) A Phase I Environmental Site Assessment (Phase I ESA) is used to determine the liability to property buyers or financial institutions during mergers and acquisitions, refinancing of commercial real estate, and other situations in order to identify the environmental risks of a site and satisfy the “due diligence” efforts to ...
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Pump-and-Treat Ground-Water Remediation - A Guide for Decision Makers and Practitioners
Pump-and-treat is one of the most widely used ground-water remediation technologies. Conventional pump-and-treat methods involve pumping contaminated water to the surface for treatment. This guide, however, uses the term pump and treat in a broad sense to include any system where withdrawal from or injection into ground water is part of a remediation strategy. Variations and enhancements of ...
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The no. 1 choice for improving the performance of soil and groundwater remediation
Adsorption of Contamination The number one challenge associated with most site remediation designs and methodologies is that 90% to 95% of all environmental contaminants; including hydrocarbons (LNAPL), chlorinates (DNAPL), and heavy metals; are present in a sorbed (i.e., absorbed or adsorbed) phase onto soil and bedrock surfaces within both saturated and unsaturated zones. As such, the absorbed ...
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Proteomics analysis of Xenopus laevis gonad tissue following chronic exposure to atrazine
Atrazine is the most commonly detected pesticide contaminant in ground and surface water. Previous studies have showed that atrazine is an endocrine disruptor owing to its adverse effects on the male reproductive system in several vertebrates, but very few molecular mechanisms for these effects have been revealed. In the present study, Xenopus laevis were exposed to 100 ppb atrazine for 120 d, ...
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What is Environmental Remediation?
Environmental remediation is cleaning up hazardous substances by removing, treating, and containing pollution or contaminants from environmental media like soil, groundwater, and sediment. This process is crucial for protecting the environment and public health by reducing the presence of harmful substances[1][2][3]. Remediation can involve various methods categorized as ex-situ (excavation and ...
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Electromagnetic (EMI) surveys
EMI (EM-34) surveyDesigned and performed an EM-34 soil conductivity (soil mapping) survey of a 26-acre wood-waste landfill in Omak, Washington. This soil mapping survey was designed to detect buried drums at a depth of 60 feet and was augmented by a total-field magnetometer survey. While employed with the Arkansas Department of Environmental Quality (ADEQ), performed approximately 40 ...
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New Jersey AC 7 26 D Remediation Standards
The New Jersey (USA) AC 7 26 D Remediation Standards developed by the New Jersey Department of Environmental Protection is responsible for the implementation of the Brownfield and Contaminated Site Remediation Act, NJSA 58:10B-12, among other statutes such as The Industrial Site Recovery Act (ISRA), NJSA 13:1K‐6 et seq., the Water Pollution Control Act, NJSA 58:10A‐1 et seq., and the New Jersey ...
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Surfactant enhanced aquifer remediation (SEAR) using Ivey-sol surfactant technology
This paper will focus on the application of Ivey-sol non-ionic surfactant technology to improve the in-situ remediation of petroleum hydrocarbon contamination is soil and bedrock aquifers. Normally hydrophobic organic chemicals (HOC) exhibit limited solubility in groundwater as the contaminants tend to partition onto the soil and bedrock matrix. This partitioning can account for as much as ...
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Liberating contaminants for easy recovery
The number one challenge associated with most site remediation designs and methodologies is that 90-95 per cent of all environmental contaminants are present in an adsorbed phase onto soil and bedrock surfaces within both saturated and unsaturated zones. Contaminants, including hydrocarbons (LNAPL), chlorinates (DNAPL) and heavy metals, are sorbed onto the substrates and so have reduced mobility ...
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In situ Chemical Oxidation: An Innovative Groundwater Remediation Technology
A promising new technology, in situ Chemical Oxidation (ISCO), has the potential to supplant the more widely used pump-and-treat groundwater remediation technology by destroying groundwater contamination in situ (in place). ISCO is the process of oxidizing contaminants in the groundwater and soil by injecting water containing high concentrations of an oxidant to the site of the contamination. ...
By AECOM
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