Search Results - "Foster, Gregory D."

Tracking acidic pharmaceuticals, caffeine, and triclosan through the wastewater treatment process by Thomas, Paul M., Foster, Gregory D.

“…Pharmaceuticals are a class of emerging contaminants whose fate in the wastewater treatment process has received increasing attention in past years. Acidic…”
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The fate and effect of oxytetracycline during the anaerobic digestion of manure from therapeutically treated calves by Arikan, Osman A., Sikora, Lawrence J., Mulbry, Walter, Khan, Shahamat U., Rice, Clifford, Foster, Gregory D.

“…The fate of antibiotic residues in the manure of treated animals is of considerable concern because of the potential development of antibiotic-resistant…”
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Sorption and diffusion of per-polyfluoroalkyl substances (PFAS) in high-density polyethylene geomembranes by Ahmad, Aamir, Tian, Kuo, Tanyu, Burak, Foster, Gregory D

“…The objective of this study is to investigate the fate and transport of per-polyfluoroalkyl substances (PFAS) through a high-density polyethylene (HDPE)…”
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Microwave-Assisted Extraction for the Simultaneous Determination of Thiamethoxam, Imidacloprid, and Carbendazim Residues in Fresh and Cooked Vegetable Samples by Singh, Shashi B, Foster, Gregory D, Khan, Shahamat U

“…Microwave-assisted extraction (MAE) was carried out for the simultaneous determination of the insecticides thiamethoxam…”
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Plant responses to per- and polyfluoroalkyl substances (PFAS): a molecular perspective by Karamat, Ayesha, Tehrani, Rouzbeh, Foster, Gregory D., Van Aken, Benoit

“…Per- and polyfluoroalkyl substances (PFAS) constitute a large class of toxic manmade compounds that have been used in many industrial and household products…”
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Analysis of Ethyl Carbamate in Wines Using Solid-Phase Extraction and Multidimensional Gas Chromatography/Mass Spectrometry by Jagerdeo, Eshwar, Dugar, Sumer, Foster, Gregory D, Schenck, Hilary

“…The method describes a rapid and accurate procedure for the analysis of ethyl carbamate in wines. The separation of the ethyl carbamate (EC), the target…”
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Sediment–Water Distribution and Benthic Boundary Layer Fluxes of Pharmaceuticals and Personal Care Products near Wastewater Discharge into a Tidal River Shoal by Foster, Gregory D, Leahigh, Arion

“…Pharmaceuticals and personal care products (PPCPs) were measured in porewater, sediment, and surface water at three sites near wastewater treatment plant (WTP)…”
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Baseflow and stormflow metal fluxes from two small agricultural catchments in the Coastal Plain of the Chesapeake Bay Basin, United States by Miller, Cherie V, Foster, Gregory D, Majedi, Brenda F

“…Annual yields (fluxes per unit area) of Al, Mn, Fe, Ni, Cd, Pb, Zn, Cu, Cr, Co, As and Se were estimated for two small non-tidal stream catchments on the…”
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Characterization of polycyclic aromatic hydrocarbons in urban stormwater runoff flowing into the tidal Anacostia River, Washington, DC, USA by Hwang, Hyun-Min, Foster, Gregory D.

“…To investigate the sources, fate, and transport dynamics of PAHs (polycyclic aromatic hydrocarbons) in stormwater runoff that is a leading source of pollution…”
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Composting rapidly reduces levels of extractable oxytetracycline in manure from therapeutically treated beef calves by Arikan, Osman A., Sikora, Lawrence J., Mulbry, Walter, Khan, Shahamat U., Foster, Gregory D.

“…Oxytetracycline (OTC) is a broad-spectrum antibiotic used in livestock production. The widespread use and relative persistence of OTC may encourage development…”
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Pharmaceutical chemicals, steroids and xenoestrogens in water, sediments and fish from the tidal freshwater Potomac River (Virginia, USA) by Arya, Golala, Tadayon, Sara, Sadighian, James, Jones, Jennifer, de Mutsert, Kim, Huff, Thomas B., Foster, Gregory D.

“…Selected pharmaceutical chemicals, steroids and xenoestrogens (PCSXs) consisting of 29 endocrine modulators, therapeutic drugs, pesticides, detergents,…”
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Surface Water Concentrations and Loading Budgets of Pharmaceuticals and Other Domestic-Use Chemicals in an Urban Watershed (Washington, DC, USA) by Shala, Lirije, Foster, Gregory D

“…Pharmaceuticals and domestic-use chemicals (PDCs) are classes of emerging chemical contaminants thought to enter the aquatic environment primarily through…”
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Hydrogeochemistry and transport of organic contaminants in an urban watershed of Chesapeake Bay (USA) by Foster, Gregory D., Roberts, Eldon C., Gruessner, Barry, Velinsky, David J.

“…Stream water samples were collected in the two main free-flowing branches of the Anacostia River watershed above the head of tide over a one year time period…”
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Sedimentary profiles of pollution marker chemicals along a large tributary of Chesapeake Bay (mid-Atlantic USA) by Foster, Gregory D., Walls, Cassi, McEachern, Phillip R., Huff, Thomas B., McBride, Randolph

“…Purpose Molecular markers in environmental geochemistry include natural product or pollutant chemicals in sediments that are indicative of discharge sources or…”
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Determination of thiophanate methyl and carbendazim residues in vegetable samples using microwave-assisted extraction by Singh, Shashi B., Foster, Gregory D., Khan, Shahamat U.

“…Microwave-assisted extraction (MAE) was carried out for the determination of the fungicides thiophanate methyl [1.2-α-(3-methoxycarbonyl-2-thioureido)benzene]…”
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The Maximum of Phosphate Adsorption at pH 4.0: Why It Appears on Aluminum Oxides but Not on Iron Oxides by Huang, Xiao, Foster, Gregory D, Honeychuck, Robert V, Schreifels, John A

“…We conducted a series of phosphate adsorption experiments with alumina and hematite at a range of initial P concentrations and pH values. We found that at low…”
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Investigation of unrecognized former secondary lead smelting sites: confirmation by historical sources and elemental ratios in soil by Eckel, William P., Rabinowitz, Michael B., Foster, Gregory D.

“…An association between antimony and lead was used to determine secondary lead smelting sites. Twelve suspected former secondary lead smelting sites were…”
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Simultaneous Determination of Carbaryl, Malathion, Fenitrothion, and Diazinon Residues in Sesame Seeds (Sesamum i ndicum L.) by Gebreegzi, Yibrah T, Foster, Gregory D, Khan, Shahamat U

“…A method is described for the simultaneous determination of carbaryl (1-naphthyl methylcarbamate), malathion [diethyl (dimethoxythiophosphorylthio) succinate],…”
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Polychlorinated biphenyls in stormwater runoff entering the tidal Anacostia River, Washington, DC, through small urban catchments and combined sewer outfalls by Hwang, Hyun-Min, Foster, Gregory D.

“…To investigate the loadings, solid-water partitioning, transport dynamics, and sources of polychlorinated biphenyls (PCBs) in urban stormwater runoff entering…”
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PAHs and PCBs deposited in surficial sediments along a rural to urban transect in a Mid-Atlantic coastal river basin (USA) by Foster, Gregory D., Cui, Vickie

“…PAHs and PCBs were measured in river sediments along a 226 km longitudinal transect that spanned rural to urban land use settings through Valley and Ridge,…”
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