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Showing 1 to 20 of 437 for “"Soil samples"”.
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Determining the Radon Emanation Coefficient for Soil Samples
… to determine the radon emanation coefficient for soil samples collected in various areas in South Africa. The radon emanation coefficient is important for identifying areas with high radium concentrations which emanate radon which could lead to high levels of radon in houses. The areas of interest …
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Metal Extraction From Soil Samples By Chelation in a Microwave System
… as a technique for extracting adsorbed metals in soil. It has been termed in this work, Chelate Assisted Microwave Extraction (CAME). Unlike other extraction methods, CAME is able to differentiate between anthropological and geological trace metals. The method has been applied to major sample …
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Of fish, pigs and cesspits : a comparative study of stable carbon and nitrogen isotope analyses on animal bone and soil samples from five medieval sites in Belguim
… ¹⁵N/¹⁴N analyses were made on animal bones and soil samples from a medieval fisherman's village, Walraversijde. In addition, samples were analysed from four other late medieval sites: Ostend, Bruges, Aalst and Namur. Bone collagen samples fiorn Walraversijde showed an ocean-derived saline influence …
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Effect of Different Growth Conditions on Cell Growth Using Biphenyl as a Sole Carbon Source by the Bacteria Isolated from Soil Samples Collected from San Jacinto River, Texas
Based on the initial assessment in 2012, the EPA Superfund site - San Jacinto River Waste Pit had suffered from inadequate waste treatment, resulting in the accumulation of highly toxic PCBs/Biphenyl. Following Hurricane Harvey in 2017, concerns were raised about the potential for contamination …
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Entwicklung von Labormethoden zur Prognose des mikrobiellen Selbstreinigungspotentials kontaminierter Grundwässer und Böden
… for natural attenuation at a contaminated site. Samples of soil and groundwater from a former gaswork site highly contaminated with BTEX and PAH were insert in short- and long-term experiments to investigate their microbial potential. In the short-term experiments a nutrient limitation as well as …
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Assessment of natural radioactivity in the soils of the Ohorongo Cement plant and the town of Otavi, Namibia
… occurring radionuclides 238U, 232Th, and 40K in soil samples collected from the Ohorongo Cement plant and the town of Otavi, Namibia have been determined using a High-Purity Germanium (HPGe) detector. In addition, an assessment of the radiological hazards due to these natural radionuclides in the …
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Soil potassium level in relation to potassium treatment, season of year and soil moisture level
Soil samples on twice monthly basis were taken from six plots located on Agronomy-plant pathology South farm and five samplings from four plots located on the Agronomy Northern Experiment Station at DeKalb. Twice monthly soil samples showed that percent soil moisture content, soil acidity, …
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Microbial degradation of selected aromatic compounds in a hazardous waste site
… was followed in aseptically-taken subsurface soil samples and ground water samples from the vicinity of a pit used to dispose the waste from a wood creosoting plant. The five compounds--anthracene, dibenzofuran, fluorene, naphthalene, and pentachlorophenol--were contaminants found in the soil …
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The characterisation of actinomycetes isolated from diverse South African sources, with emphasis on the genus Kribbella
… of indigenous plants, aquatic sediment and soil samples, using alternative isolation methods to select for actinomycetes belonging to the rarer genera. Thirty actinomycete strains belonging to the genera Gordonia, Kineococcus, Kribbella, Micromonospora, Nocardia and Streptomyces were …
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Evaluation of Metal Concentration in Water and Soil in the Southern Region of Lake Nacogdoches
… Cu, Mn, Ni, Pb, Sr, V, Zn) were investigated in soil and water samples collected over four different sites in the southern part of Lake Nacogdoches over one year from August 2018 through June 2019. Water samples were analyzed using the USEPA method 200.8 part 11.2 for total recoverable metals. …
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Environmental Study of Pesticide Residues in Soil and Water from Cotton Growing Areas in Mali
… and to determine the amount of pesticide in soil and water samples collected at four cotton producing areas of Mali. The results from a survey of 24 farmers identified various concerns regarding personal and environmental safety. Despite their training, sometimes growers did not use …
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Soil as a possible origin of organisms of the Mycobacterium avium, M. intracellulare, and M. scrofulaceum (Mais) complex in southeastern United States
Water and soil samples collected from the mouth to origin of the Savannah and Tombigbee Rivers were treated for enumeration of organisms of the Mycobacterium avium, M. intracellulare, and M. scrofulaceum (MAIS) complex. Their numbers in soil and water were compared to physiochemical characteristics …
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Brine Spill Remediation: Crestwood Pipeline, McKenzie County, North Dakota
<p>Electrical Conductivity (EC) analyses of soil samples collected at a coproduced brine spill site near Mandaree, McKenzie County, North Dakota suggest that the site has been remediated. Five soil samples were taken from the area 12 inches below the ground surface. In the lab the saturation …
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Land Use and Topography Impacts on Rangeland Soil Seed Bank Composition on Standing Rock Indian Reservation
… by utilizing the seeds stored naturally in the soil seed bank. The objectives of this study were: 1) to determine if the composition of the soil seed bank in native prairie rangeland grazed historically by bison differs from the composition of the soil seed bank in native prairie rangeland …
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Bioaccessibility of metals in Toronto city parks
… work was to estimate metals bioaccessibility in soil samples from 15 city parks in Toronto, Ontario, Canada. Total metals concentrations were analyzed to identify contaminants that exceeded the Canadian Council of Ministers of the Environment (CCME) guidelines for residential/parkland use. …
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Bioaccessibility of Metals in Soils of Parks and Playgrounds – Fort McMurray, Alberta
… and bioaccessibility of metals present in soils at parks and playgrounds in Fort McMurray, Alberta. Sixty soil samples collected from 20 parks and playgrounds were analyzed for pH, total metal concentration by X-ray fluorescence. In addition, in vitro bioaccessibility assay (IVBA) was …
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Soil Metal Distribution in Parks and Playgrounds in Select Municipalities in Metro Vancouver
This study was conducted to identify the soil metal profile in parks and playgrounds in select municipalities in Metro Vancouver that have been rapidly developing during the past few years. Sixty-eight soil samples were analyzed for metals including As, Cd, Cr, Cu, Fe, Ni, Pb, Sn, U, V, and Zn by …
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Construction Site Sedimentary Pollution in a Watershed
… due to the construction materials used. Soil samples were collected from the construction sites at different stages of construction procedures at strategic locations on the site within two days after a rainfall event. The soil samples were then analyzed to determine how much of the …
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Testing the Forensic Predictive Geolocation Significance of Human-made Particulates in Urban Surface Soils
… geolocation is of increasing interest to the soil forensics and geoscience community. Not much is known about the forensic geolocation significance of anthropogenic materials in soils. As a result, the goal of this study was to investigate the potential forensic predictive geolocation …
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Dissolution of Soil Heavy Metal Contaminants as Affected by pH and Redox Potential
… of heavy metal (trace metal) contaminants in soils depends on metal concentration, chemical speciation, and conditions such as pH, redox potential, and ionic strength of the soil solution. The objective of this study was to determine the dissolution (potential mobilization) of metal …
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