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Добірка наукової літератури з теми "Contaminant of emerging concern"

Автор: Grafiati

Опубліковано: 7 вересня 2022

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Статті в журналах з теми "Contaminant of emerging concern"

Kadmi, Yassine, Lidia Favier, Mouni Lotfi, Noureddine Nasrallah, and Dominique Wolbert. "A highly sensitive liquid chromatography-tandem mass spectrometry method for the analysis of a toxic water disinfection by-product, N-nitrosomethylethylamine." Anal. Methods 6, no. 10 (2014): 3231–34. http://dx.doi.org/10.1039/c4ay00146j.

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Browne, Mark, Tamara Galloway, and Richard Thompson. "Microplastic - an emerging contaminant of potential concern?" Integrated Environmental Assessment and Management preprint, no. 2007 (2007): 1. http://dx.doi.org/10.1897/ieam_2007-048.

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Browne, Mark A., Tamara Galloway, and Richard Thompson. "Microplastic-an emerging contaminant of potential concern?" Integrated Environmental Assessment and Management 3, no. 4 (October 2007): 559–61. http://dx.doi.org/10.1002/ieam.5630030412.

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Vandermeersch, Griet, Helena Maria Lourenço, Diana Alvarez-Muñoz, Sara Cunha, Jorge Diogène, German Cano-Sancho, Jens J. Sloth, et al. "Environmental contaminants of emerging concern in seafood – European database on contaminant levels." Environmental Research 143 (November 2015): 29–45. http://dx.doi.org/10.1016/j.envres.2015.06.011.

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Galindo-Miranda, J. Manuel, Cecilia Guízar-González, Elías J. Becerril-Bravo, Gabriela Moeller-Chávez, Elizabeth León-Becerril, and Ramiro Vallejo-Rodríguez. "Occurrence of emerging contaminants in environmental surface waters and their analytical methodology – a review." Water Supply 19, no. 7 (June 10, 2019): 1871–84. http://dx.doi.org/10.2166/ws.2019.087.

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Abstract A new concern about surface water quality is the occurrence of emerging contaminants that have being recognized as a new class of water contaminants such as antibiotics, hormones, pesticides, personal care products and pharmaceutical products. The occurrence of these contaminants in the aquatic environment and especially in surface water is a serious concern because this is usually the source of water for drinking water treatment plants (DWTP). This review provides a summary of the occurrence and the analytical methodology (extraction process, chromatography analysis, detection systems and ionization source) of emerging contaminant analysis in surface waters including rivers, lakes, creeks and wetlands for their analysis.

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Gewurtz, Sarah B., and Miriam L. Diamond. "Distribution and burdens of bioaccumulative contaminants in the Lake Erie food web: A review." Environmental Reviews 11, no. 3 (September 1, 2003): 141–60. http://dx.doi.org/10.1139/a03-014.

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The bioaccumulation of organic contaminants in the Lake Erie food web is reviewed in context of the numerous changes experienced by the system. In the late 1960s, internal lake processes, related to the eutrophic status of the lake, minimized contaminant bioaccumulation despite high contaminant loadings. From the 1970s to 1980s contaminant concentrations decreased at different rates in many species of different trophic levels, coincident with decreased loadings to the lake. Since the early 1980s contaminant concentrations in biota have not changed consistently. Several factors have been proposed to account for these patterns, including reduced nutrient loadings and productivity, and the invasion of several exotic species such as zebra mussels. These factors have altered the food web structure and the internal distribution of contaminants in the lake. Emerging and continuing issues, such as climate change, invasions of additional exotic species, new chemical contaminants of concern, and algal toxins will likely impact contaminant dynamics in the future.Key words: Lake Erie, bioaccumulative contaminants, food web.

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Anderko, Laura, Emma Pennea, and Stephanie Chalupka. "Per- and Polyfluoroalkyl Substances: An Emerging Contaminant of Concern." Annual Review of Nursing Research 38, no. 1 (December 23, 2019): 159–82. http://dx.doi.org/10.1891/0739-6686.38.159.

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Concerns about the health impacts from per- and polyfluoroalkyl substances (PFAS) continue to grow as the science continues to emerge associating this chemical family with a wide range of health impacts. PFAS exposure may affect growth, learning, and behavior of infants and older children, and also impact reproductive health, cardiovascular health, and the immune system. PFAS exposure is widespread, with communities surrounding military bases at potentially greater risk of exposure from the use of fire fighting foam that may have entered the drinking water. As trusted health professionals, nurses have been in the frontlines communicating risks regarding PFAS to impacted communities. This chapter describes a large number of PFAS studies in blood and harmful health effects in people. The chapter discusses primary sources of exposure and risk reduction. It explains health advisory levels, minimal risk levels. The chapter provides medical testing and medical management.

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Kuskopf, Laura, Madoc Sheehan, and Anna Whelan. "Contaminants of Emerging Concern." Water e-Journal 5, no. 3 (2020): 1–28. http://dx.doi.org/10.21139/wej.2020.019.

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There are potentially many thousands of municipally derived contaminants of emerging concern (CECs) present in discharged wastewaters that may cause adverse effects in receiving aquatic environments. Wastewater authorities, therefore, may face the momentous task of investigating these compounds with little or no prior CEC data for their sewage treatment plants (STPs). Such is the case for the Cleveland Bay Sewage Treatment Plant (CBSTP). To evaluate the potential environmental risk posed by municipal CECs, it is first necessary to understand which CECs are present in discharging wastewater, how they will be sampled and quantified, and which CECs are the most concerning regarding ecological risk. A Sampling Analysis and Quality Plan (SAQP) is a valuable tool that can be used to critically review and detail the strategy that will be adopted to achieve these outcomes. As such, this paper describes the development of a SAQP for screening wastewaters released from the CBSTP into Cleveland Bay as part of a preliminary CEC assessment. This paper describes the qualitative decision-making process employed to shortlist CECs into those perceived to pose the greatest ecological risk. In addition, the rationale and methods adopted to determine sampling locations and frequency are described.

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Naidu, R., and M. H. Wong. "Contaminants of emerging concern." Science of The Total Environment 463-464 (October 2013): 1077–78. http://dx.doi.org/10.1016/j.scitotenv.2013.05.085.

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Cotruvo, Joseph A., and Andrew D. Eaton. "Contaminants of Emerging Concern." Journal - American Water Works Association 110, no. 4 (April 2018): 2. http://dx.doi.org/10.1002/awwa.1057.

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Дисертації з теми "Contaminant of emerging concern"

Hernandez, Ruiz Selene. "Elucidation of Dissolved Organic Matter Interactions with Model Contaminants of Emerging Concern." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/145461.

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This study examined the interaction of model cationic, neutral and anionic endocrine disrupting compounds, pharmaceuticals and personal care products (EDC/PPCPs) with bulk and fractionated freshwater and waste water dissolved organic matter (DOM). The chemical composition of the freshwater DOM (Suwannee River, GA, SROM) proved to be rich in plant-derived hydrophobic aromatics, while the wastewater DOM (WWOM) contained a greater proportion of microbial biomolecular products, presumably resulting mainly from human waste. Studies focused on the fluorescence quenching of excitation-emission matrices (EEMs) of WWOM indicated that interaction with bis-phenol A (BPA), carbamazepine (CBZ), and ibuprofen (IBU) occurred preferentially with soluble protein-like and fulvic acid-like constituents. However, upon introduction to bulk SROM, BPA and CBZ were observed to quench humic acid-like regions of the EEMs, while negatively charged ibuprofen preferentially quenched the protein-like and fulvic acid components irrespective of DOM source and/or fraction. Despite this evidence of EDC/PPCP interactions with both DOM types, the strength of bonds formed was generally not sufficient to preclude full recovery and quantification of all three contaminants by liquid chromatography tandem mass spectrometry (LC-MSMS). An important exception, however, was for the hydrophilic acid fraction (HiA) of both DOM types, whose apparent bonding to cationic CBZ and anionic IBU significantly diminished LC-MSMS recovery. Thus, water sources rich in HiA character might produce a concentration underestimation of ionized EDC/PPCPs even with the use of sophisticated instruments such as LC-MSMS.The results of this research are consistent with the evolving ""supramolecular"" theory of natural organic matter, which postulates that organic matter itself is comprised of fragments of partially degraded biomolecules that are aggregated into ""supramolecular"" structures of apparent higher molar mass via relatively weak electrostatic, hydrophobic, and van der Waals interaction. Our findings suggest that EDC/PPCP contaminants, which comprise many of the same functional groups as waste water and freshwater DOM, may be incorporated into such DOM supramolecular structures, likely via the same types of intermolecular bonding, when they are present in natural waters under environmentally-relevant conditions.

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Ma, Yanjun. "Fate and Impacts of Contaminants of Emerging Concern during Wastewater Treatment." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/56633.

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The purpose of this dissertation was to broadly investigate the fate of antibiotic resistance genes (ARGs) and engineered nanomaterials (ENMs) as representative contaminants of emerging concern in wastewater treatment plants (WWTPs). WWTPs may have their performance impacted by ENMs and may also serve as a reservoir and point of release for both ENMs and ARGs into the environment. Of interest were potential adverse effects of ENMs, such as stimulation of antibiotic resistance in the WWTP, toxicity to microbial communities critical for WWTP performance, and toxicity to humans who may be exposed to effluents or aerosols containing ENMs and their transformation products. Response of nine representative ARGs encoding resistance to sulfonamide, erythromycin and tetracycline to various lab-scale sludge digestion processes were examined, and factors that drove the response of ARGs were discussed. Mesophilic anaerobic digestion significantly reduced sulI, sulII, tet(C), tet(G), and tet(X) with longer solids retention time (SRT) exhibiting a greater extent of removal. Thermophilic anaerobic digesters performed similarly to each other and provided more effective reduction of erm(B), erm(F), tet(O), and tet(W) compared to mesophilic digestion. Thermal hydrolysis pretreatment drastically reduced all ARGs, but they generally rebounded during subsequent anaerobic and aerobic digestion treatments. Bacterial community composition of the sludge digestion process, as controlled by the physical operating characteristics, was indicated to drive the distribution of ARGs present in the produced biosolids, more so than the influent ARG composition. Effects of silver (nanoAg), zero-valent iron (NZVI), titanium dioxide (nanoTiO2) and cerium dioxide (nanoCeO2) nanomaterials on nitrification function and microbial communities were examined in duplicate lab-scale nitrifying sequencing batch reactors (SBRs), relative to control SBRs received no materials or ionic/bulk analogs. Nitrification function was only inhibited by high load of 20 mg/L Ag+, but not by other nanomaterials or analogs. However, decrease of nitrifier gene abundances and distinct microbial communities were observed in SBRs receiving nanoAg, Ag+, nanoCeO2, and bulkCeO2. There was no apparent effect of nanoTiO2 or NZVI on nitrification, nitrifier gene abundances, or microbial community structure. A large portion of nanoAg remained dispersed in activated sludge and formed Ag-S complexes, while NZVI, nanoTiO2 and nanoCeO2 were mostly aggregated and chemically unmodified. Thus, the nanomaterials appeared to be generally stable in the activated sludge, which may limit their effect on nitrification function or microbial community structure. Considering an aerosol exposure scenario, cytotoxicity and genotoxicity of aqueous effluent and biosolids from SBRs dosed with nanoAg, NZVI, nanoTiO2 and nanoCeO2 to A549 human lung epithelial cells were examined, and the effects were compared relative to outputs from SBRs dosed with ionic/bulk analogs and undosed SBRs, as well as pristine ENMs. Although the pristine nanomaterials showed varying extents of cytotoxicity to A549 cells, and gentoxicity was observed for nanoAg, no significant cytotoxic or genotoxic effects of the SBR effluents or biosolids containing nanomaterials were observed. Studies presented in this dissertation provided new insights in the fate of ARGs in various sludge digestion processes and ENMs in nitrifying activated sludge system in lab-scale reactors. The study also yielded toxicity data of ENMs to biological wastewater treatment microbial communities and human lung cells indicated by a variety of toxicity markers. The results will aid in identifying appropriate management technologies for sludge containing ARGs and will inform microbial and human toxicity assessments of ENMs entering WWTPs.
Ph. D.

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Rojas, Cardozo Mario Roberto. "ADVANCED OXIDATION OF CHEMICALS OF EMERGING CONCERN: MODELING AND EXPERIMENTAL SIMULATION." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/202534.

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Every year, new trace chemicals are detected in natural waters as well as treated wastewater effluents all over the world. Public health and environmental concerns have driven the development of new technologies to treat water and eliminate chemicals that may pose risk to humans and wildlife. This work presents a detailed statistical analysis on the removal of some of the most widely occurring chemicals of emerging concern in wastewater based on information available in the literature. Results show that existing water treatment processes only partially eliminate most of these contaminants. Advanced oxidation processes (AOPs) are some of the technologies that have shown the most promising results for the removal of recalcitrant organics in water. Hydrogen peroxide photolysis (UV/H₂O₂) and Fenton’s reaction are some examples of AOPs that use hydroxyl radicals to oxidize organics. The kinetics of UV/H₂O₂ and Fenton’s reaction were studied from the experimental and mathematical points of view. Comprehensive models with no adjustable parameters successfully accounted for radical initiation via photolysis of H₂O₂ or radical initiation via Fenton’s mechanism; reaction of organic targets such as p-cresol and nonylphenol with hydroxyl radicals; and recombination mechanisms, as well as changes in solution pH due to evolution of carbon dioxide because of target mineralization. The presence of radical scavengers was successfully handled by the models, suggesting that they can be generalized to the treatment of complex matrices. The UV/H₂O₂ model was also extended to solar catalyzed applications. Using an atmospheric solar irradiation model (SMART) and data from the Giovanni-NASA online database, ground-level solar spectral irradiance were obtained and used as model inputs. The kinetic model provided an excellent fit to experimental results obtained with p-cresol and fluorescein targets using no fitted parameters. The UV/H₂O₂ process was also studied in commercial flow-through UV reactors with monochromatic and polychromatic light sources. Organic targets of interest such as pcresol can be degraded effectively in these reactors at relatively low peroxide concentrations. Results with wastewater effluents suggest that these commercial reactors can be used for AOP tertiary treatment as a way to reduce dissolved organic matter and eliminate potential harmful chemicals present in the water.

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Alvarez, Corena Jose Ricardo. "Heterogeneous Photocatalysis For The Treatment Of Contaminants Of Emerging Concern In Water." Digital WPI, 2015. https://digitalcommons.wpi.edu/etd-dissertations/320.

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"The simultaneous degradation of five organic contaminants: 1,4 dioxane, n-nitrosodimethylamine, tris-2-chloroethyl phosphate, gemfibrozil, and 17β estradiol, was investigated using a 1 L batch water-jacketed UV photoreactor utilizing titanium dioxide (TiO2) nanoparticles (Degussa P-25) as a photocatalyst. The primary objectives of this research were: (1) to experimentally assess the feasibility of heterogeneous photocatalysis as a promising alternative for the degradation of organic compounds in water; and (2) to model the chemical reactions by the application of two different approaches based on adsorption – surface reactions (Langmuir–Hinshelwood) and its simplification to a first order rate reaction. These objectives were motivated by the lack of information regarding simultaneous degradation of organic compounds in different categories as found in real aqueous matrices, and generation of specific intermediates that could eventually represent a potential risk to the environment. Contaminants were chosen based on their occurrence in water sources, their representativeness of individual sub-categories, and their importance as part of the CCL3 as potential contaminants to be regulated. Contaminant degradation was evaluated over time, and the TiO2 concentration and solution pH were varied under constant UV irradiation, oxygen delivery rate, mixing gradient, and temperature.    Specific accomplishments of this study were: (1) reaction kinetics data were obtained from the UV/TiO2 experiments and showed the potential that this UV/TiO2 process has for effectively removing different types of organic compounds from water; (2) a good fit was obtained between photocatalytic reaction kinetics models and the contaminant data using pseudo first-order and Langmuir-Hinshelwood (L-H) models; (3) results of the analytical methods developed in this study were validated by measurements performed by a certified laboratory; (4) the reaction kinetic parameters obtained in this study were normalized to electrical energy per order, reactor volume and surface area of the photocatalyst in order to provide rate constants with wider applicability for scale-up to more complex systems; and (5) degradation intermediates from the oxidation process and from interaction among compounds were identified and possible pathways for their formation suggested. This research has provided a better understanding of the photocatalytic process for the removal of organic contaminants from complex aqueous matrices."

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Upton, Ethan A. "Sinkhole Lake Infiltration of Contaminants of Emerging Concern from Onsite Water Treatment Systems." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7977.

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The advancement in synthetic chemicals commonly referred to as contaminants of emerging concern (CECs) and their application has led to an increase in environmental pollution. The use of septic tanks otherwise referred to as onsite water treatment systems (OWTS), promotes the introduction of CECs into the environment while allowing little in the way of remediation. In order to study the impacts of CECs from OWTS as they infiltrate the environment and the aquifer system, water, sediment, and vegetation samples were collected around a sinkhole lake surrounded by residential housing using OWTSs. The main question of this research project is what is the fate of CECs from OWTSs effluent within the catchment of a sinkhole lake? Liquid chromatograph mass spectrometry was used to analyze the samples for the presence of CECs. It was found that the relative quantity of CECs in the individual constituents is dependent upon 1) the hydrophobicity and polarity of the individual compound, 2) the specific sampling site, 3) the topography gradient, and 4) for vegetation the connectedness of the sample type to the sediment. The implications derived from this study can be applied in environmental engineering, urban and suburban planning, environmental monitoring, and should be considered when residents use well water as their source of potable water.

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Hamnca, Siyabulela. "Nanostructured polyamic acid electrocatalysts for reliable analytical reporting of sulphonamides as contaminants of emerging concern." University of the Western Cape, 2019. http://hdl.handle.net/11394/7014.

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Philosophiae Doctor - PhD
Polyamic acid (PAA) nanostructured materials were successfully produced by electrochemical deposition and electrospinning using polyvinlypyrrolidone (PVP) as supporting polymer. Polyamic acid thin film and nanofibers were deposited directly at the surface of a screen-printed carbon electrode (SPCE) as electro-catalysts for reliable analytical reporting of sulphonamide as contaminants of emerging concern by electrochemical techniques. Fourier transform infrared (FTIR) spectroscopy was used to confirm the structural integrity of the PAA electrospun nanofibers compared to the chemical synthesized PAA. Brunauer-Emmett-Teller (BET) was used to determine the surface area of the nanofibers. The surface morphology and surface thickness of the polyamic acid (PAA) nanofibers on the screen-printed electrodes was studied using scanning electron microscopy (SEM) and atomic force microscopy (AFM). Cyclic voltammetry (CV) was used to study redox behavior of the nanostructured PAA modified screen-printed carbon electrodes. Electrochemical parameters surface concentration, diffusion coefficient, formal potential and peak separation were determined. Three sulphonamides were selected based on the United States of protection agency (US EPA) and World Health Organization (WHO) list of emerging contaminants and detected sulphonamides in environmental waters in South Africa and other African regions. The selected sulfonamides were evaluated at the unmodified and modified screen-printed carbon electrodes. The sulphonamides were evaluated in three different supporting electrolytes at pH < 7 and >7 to enhance electrochemical signal reporting. Sulfadiazine (SDZ), sulfamethoxazole (SMX) and sulfamethazine (SMZ) displayed peaks at 0.80 V vs Ag/AgCl in 0.1 M tris-HCl using square wave voltammetry at the unmodified transducer. At the PAA thin film transducer, SDZ, SMX and SMZ displayed well-defined analytical oxidative peaks at 0.77 V 0.82 V and 0.83 V vs Ag/AgCl respectively. The LOD (n=3) for SDZ was found to be 12.14 ųM with a correlation coefficient of 0.9950. The LOD (n=3) for SMX and SMZ was found to 14.59 ųM (R2 =0.9928) and 10.41 ųM (R2 =0.9963). These sulphonamides were also electro-analytical evaluated at the screen-printed carbon PAA nanofiber modified transducer. SDZ, SMX and SMZ produced well-defined analytical signals at 0.79 V, 0.81 V and 0.78 V vs Ag/AgCl respectively. The determined LOD (n=3) for the individual sulphonamides was 8.26 ųM, 16.59 ųM and 8.81 ųM SDZ, SMX and SMZ respectively. The linearity correlation coefficient (R2) was determined to be 0.9977, 0.9956 and 0.9974 respectively. The efficacy of the proposed nanostructured PAA thin film modified screen-printed carbon sensor was evaluated by performing recovery studies for the selected sulphonamides using square wave voltammetry. Tap water was used to simulate environmental matrix. The recoveries of SDZ with respect to each concentration were 98.84% (RSD 4.98%) to 40.58% (RSD 6.74%). For SMX the recoveries were 154.17% (RSD 11.00%) to 111.03% (RSD 16.80%). The recoveries for SMZ with respect to each concentration were 184% (RSD 8.19%) to 90.26 (RSD 18.26%) indicating the reliability of the analytical results.
2021-09-01

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Platten, William E. III. "Fate of Emerging Contaminants in Biomass Concentrating Reactors (BCR) under Conventional Aerobic and Aerobic/Anoxic Treatment." University of Cincinnati / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1406881476.

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Ojemaye, Cecilia Yejide. "Identification and quantification of chemicals of emerging concern (persistent organic and inorganic pollutants) in some selected marine environments of cape town, South Africa." University of the Western Cape, 2020. http://hdl.handle.net/11394/7877.

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Philosophiae Doctor - PhD
The increasing evidence of chemicals of emerging concern (CECs) in water bodies is causing major concern around the world because of their toxicological effects upon humans and aquatic organisms. The release of wastewater to the aquatic environment is most likely to introduce some trace levels of organic contaminants, some of which may be toxic, carcinogenic, or endocrine disruptors, as well as, persistent in the environment. These compounds are often persistent but not regularly monitored because they are mostly still excluded from environmental legislation. Their fate and persistence in the environment are not well understood.
2022-02-24

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Al, Anazi Abdulaziz H. "Synthesis of Recyclable Magnetic Metal-ferrite Nanoparticles for the Removal of Contaminants of Emerging Concern in Water." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1543922143864275.

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Cullin, Joseph Albert. "Reach-scale predictions of the fate and transport of contaminants of emerging concern at Fourmile Creek in Ankeny, Iowa." Thesis, The University of Iowa, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1560631.

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Contaminants of emerging concern (CECs) are an unregulated suite of constituents frequently detected in environmental waters, which possess the potential to cause a host of reproductive and developmental problems in humans and wildlife. Degradation pathways of several CECs are well-characterized in idealized laboratory settings, but CEC fate and transport in complex field settings is poorly understood. In the present study I use a multi-tracer solute injection to study and quantify physical transport and photodegradation in a wastewater effluent-impacted stream in Ankeny, Iowa. Conservative tracers are used to quantify physical transport processes in the stream. Use of reactive fluorescent tracers allows for isolation of the relative contribution of photodegradation within the system. Field data were used to calibrate a one-dimensional transport model, and forward modeling was then used to predict the transport of sulfamethoxazole, an antibiotic in the effluent which is susceptible to photolysis. Results show that accurate predictions of reactive CECs at the scale of stream reaches can be made using the fate and transport model based on field tracer studies. Results of this study demonstrate a framework that can be used to couple field tracer and laboratory CEC studies to accurately predict the transport and fate of CECs in streams.

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Книги з теми "Contaminant of emerging concern"

U, Halden Rolf, American Chemical Society. Division of Environmental Chemistry, and American Chemical Society, eds. Contaminants of emerging concern in the environment: Ecological and human health considerations. Washington DC: American Chemical Society, 2010.

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Halden, Rolf U., ed. Contaminants of Emerging Concern in the Environment: Ecological and Human Health Considerations. Washington, DC: American Chemical Society, 2010. http://dx.doi.org/10.1021/bk-2010-1048.

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Opsahl, Stephen P. Detections, concentrations, and distributional patterns of compounds of emerging concern in the San Antonio River basin, Texas, 2011-12. Reston, Virginia: U.S. Geological Survey, 2013.

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Kumar, Manish, Sanjeeb Mohapatra, and Kishor Acharya. Contaminants of Emerging Concerns and Reigning Removal Technologies. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003247869.

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Kendall, Ronald J. Wildlife toxicology: Emerging contaminant and biodiversity issues. Boca Raton: CRC Press, 2010.

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Democracy in Japan: The emerging global concern. New York: Crown Publishers, 1994.

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Alok, Bhandari, Environmental Council of the States (U.S.). Emerging Contaminants of Concern Task Commitee., and Environmental and Water Resources Institute (U.S.), eds. Contaminants of emerging environmental concern. Reston, Va: American Society of Civil Engineers, 2009.

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Contaminants of Emerging Concern in Water and Wastewater. Elsevier, 2020. http://dx.doi.org/10.1016/c2016-0-05074-x.

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Fontanals, Núria, and Rosa Maria Marcé, eds. Analytical Methods for Environmental Contaminants of Emerging Concern. Wiley, 2022. http://dx.doi.org/10.1002/9781119763895.

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Management of Contaminants of Emerging Concern (CEC) in Environment. Elsevier, 2021. http://dx.doi.org/10.1016/c2019-0-04410-x.

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Частини книг з теми "Contaminant of emerging concern"

Hendry, Sarah. "Contaminants of emerging concern." In Routledge Handbook of Water Law and Policy, 95–108. Handbook of water law and policy Description: New York: Routledge, 2016.: Routledge, 2017. http://dx.doi.org/10.4324/9781315651132-8.

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Bell, Caitlin H., Paul Anderson, and Norman Forsberg. "Considerations for Future Contaminants of Emerging Concern." In Emerging Contaminants Handbook, edited by John Horst, 355–72. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2019. http://dx.doi.org/10.1201/b22226-6.

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Xia, Kang. "Analytical Methods for Environmental Samples." In Contaminants of Emerging Environmental Concern, 7–55. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/9780784410141.ch02.

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Adams, Craig D. "Pharmaceuticals." In Contaminants of Emerging Environmental Concern, 56–85. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/9780784410141.ch03.

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Champagne, Pascale. "Personal Care Products." In Contaminants of Emerging Environmental Concern, 86–140. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/9780784410141.ch04.

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Ong, Say Kee, Warisara Lertpaitoonpan, Alok Bhandari, and Tawan Limpiyakorn. "Antimicrobials and Antibiotics." In Contaminants of Emerging Environmental Concern, 141–85. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/9780784410141.ch05.

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Limpiyakorn, Tawan, Supreeda Homklin, and Say Kee Ong. "Hormones." In Contaminants of Emerging Environmental Concern, 186–234. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/9780784410141.ch06.

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Barnabé, S., I. Beauchesne, S. K. Brar, Y. Song, R. D. Tyagi, and R. Y. Surampalli. "Phthalate Plasticizers and Degradation Products." In Contaminants of Emerging Environmental Concern, 235–78. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/9780784410141.ch07.

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Yan, S., B. Subramanian, S. Barnabe, R. D. Tyagi, and R. Y. Surampalli. "Surfactants." In Contaminants of Emerging Environmental Concern, 279–314. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/9780784410141.ch08.

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Banerji, Shankha, Rao Surampalli, Tian Zhang, and R. D. Tyagi. "Brominated Fire Retardants." In Contaminants of Emerging Environmental Concern, 315–42. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/9780784410141.ch09.

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Тези доповідей конференцій з теми "Contaminant of emerging concern"

Shamsudin, Muhamad Sharafee, and Suzylawati Ismail. "Thin adsorbent coating for contaminant of emerging concern (CEC) removal." In 6TH INTERNATIONAL CONFERENCE ON ENVIRONMENT (ICENV2018): Empowering Environment and Sustainable Engineering Nexus Through Green Technology. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5117104.

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López Vinent, Núria, Alberto Cruz Alcalde, Jaime Giménez, Pilar Marco, Bernardí Bayarri Ferrer, Santiago Esplugas, and Carme Sans. "Photo-Fenton treatment for the removal of contaminants of emerging concern in wastewaters." In 14th Mediterranean Congress of Chemical Engineering (MeCCE14). Grupo Pacífico, 2020. http://dx.doi.org/10.48158/mecce-14.dg.09.13.

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Levy, Jonathan, Tedros Berhane, Mark P. S. Krekeler, and Neil Danielson. "KINETIC SORPTION OF CONTAMINANTS OF EMERGING CONCERN BY A PALYGORSKITE-MONTMORILLONITE FILTER MEDIUM." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-285984.

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Horton, Ashley Diane, and Kyle E. Murray. "ANALYSIS AND MAPPING OF SOURCES OF CONTAMINANTS OF EMERGING CONCERN IN LAKE THUNDERBIRD, NORMAN, OK." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-303966.

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"EMERGING ENVIRONMENTAL CONTAMINANTS: CURRENT SCIENCE AND POLICY CONCERNS." In Animal Agriculture and the Environment, National Center for Manure & Animal Waste Management White Papers . St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2006. http://dx.doi.org/10.13031/2013.20253.

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Roy, Kunal, and Kazi Hossain. "Chemometric modeling of toxicity of contaminants of emerging concern to Dugesia japonica and its interspecies correlation with daphnia and fish: QSTR and i-QSTTR approaches." In MOL2NET 2018, International Conference on Multidisciplinary Sciences, 4th edition. Basel, Switzerland: MDPI, 2018. http://dx.doi.org/10.3390/mol2net-04-05266.

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Ding, Haijing, Yanli Ding, and Shaoyuan Bai. "Emerging organic contaminant removal in constructed wetlands." In 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/iceep-17.2017.80.

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Gude, Veera Gnaneswar, and Sara Fast. "Holistic analysis of emerging contaminant removal using advanced oxidation processes." In The 1st International Electronic Conference on Water Sciences. Basel, Switzerland: MDPI, 2016. http://dx.doi.org/10.3390/ecws-1-c002.

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Dutta, M., and C. K. Dwivedi. "Liquid-Contaminant: Inclined Plane Tracking and Erosion of Insulating Materials." In Third International Conference on Emerging Trends in Engineering and Technology (ICETET 2010). IEEE, 2010. http://dx.doi.org/10.1109/icetet.2010.66.

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Ali, S. S., R. S. Chakraborty, D. Mukhopadhyay, and S. Bhunia. "Multi-level attacks: An emerging security concern for cryptographic hardware." In 2011 Design, Automation & Test in Europe. IEEE, 2011. http://dx.doi.org/10.1109/date.2011.5763307.

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Звіти організацій з теми "Contaminant of emerging concern"

Barker, Amanda, Jay Clausen, Thomas Douglas, Anthony Bednar, Christopher Griggs, and William Martin. Environmental impact of metals resulting from military training activities : a review. Engineer Research and Development Center (U.S.), February 2022. http://dx.doi.org/10.21079/11681/43348.

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The deposition of metals into the environment as a result of military training activities remains a longterm concern for Defense organizations across the globe. Of particular concern for deposition and potential mobilization are antimony (Sb), arsenic (As), copper (Cu), lead (Pb), and tungsten (W), which are the focus of this review article. The fate, transport, and mobilization of these metals are complicated and depend on a variety of environmental factors that are often convoluted, heterogeneous, and site dependent. While there have been many studies investigating contaminant mobilization on military training lands there exists a lack of cohesiveness surrounding the current state of knowledge for these five metals. The focus of this review article is to compile the current knowledge of the fate, transport, and ultimate risks presented by metals associated with different military training activities particularly as a result of small arms training activities, artillery/mortar ranges, battleruns, rocket ranges, and grenade courts. From there, we discuss emerging research results and finish with suggestions of where future research efforts and training range designs could be focused toward further reducing the deposition, limiting the migration, and decreasing risks presented by metals in the environment. Additionally, information presented here may offer insights into Sb, As, Cu, Pb, and W in other environmental settings.

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Yaroschak, P. J. Emerging Contaminant Program: Program Update. Fort Belvoir, VA: Defense Technical Information Center, December 2010. http://dx.doi.org/10.21236/ada552023.

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MacDonald, Daniel P., and Robert C. Lozar. Emerging Species of Concern Resulting from Urbanization Encroachment Near Military Installations. Fort Belvoir, VA: Defense Technical Information Center, July 2006. http://dx.doi.org/10.21236/ada452366.

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Holcomb, H. P. Sr{sup 89} -- An unnecessary contaminant of concern in SRS environmental samples. Office of Scientific and Technical Information (OSTI), July 1993. http://dx.doi.org/10.2172/10186898.

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Arnold, Zachary, Ngor Luong, and Ben Murphy. Chinese Government Guidance Funds: A Guide for the Perplexed. Center for Security and Emerging Technology, March 2021. http://dx.doi.org/10.51593/20210011.

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The Chinese government is pouring money into public-private investment funds, known as guidance funds, to advance China’s strategic and emerging technologies, including artificial intelligence. These funds are mobilizing massive amounts of capital from public and private sources—prompting both concern and skepticism among outside observers. This overview presents essential findings from our full-length report on these funds, analyzing the guidance fund model, its intended benefits and weaknesses, and its long-term prospects for success.

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Corriveau, Elizabeth, and Jay Clausen. Application of Incremental Sampling Methodology for subsurface sampling. Engineer Research and Development Center (U.S.), May 2021. http://dx.doi.org/10.21079/11681/40480.

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Historically, researchers studying contaminated sites have used grab sampling to collect soil samples. However, this methodology can introduce error in the analysis because it does not account for the wide variations of contaminant concentrations in soil. An alternative method is the Incremental Sampling Methodology (ISM), which previous studies have shown more accurately captures the true concentration of contaminants over an area, even in heterogeneous soils. This report describes the methods and materials used with ISM to collect soil samples, specifically for the purpose of mapping subsurface contamination from site activities. The field data presented indicates that ISM is a promising methodology for collecting subsurface soil samples containing contaminants of concern, including metals and semivolatile organic compounds (SVOCs), for analysis. Ultimately, this study found ISM to be useful for supplying information to assist in the decisions needed for remediation activities.

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Ismaiel, Abdulrahman, Ayman Jaaouani, Daniel-Corneliu Leucuta, Stefan-Lucian Popa, and Dan-Lucian Dumitrascu. The Visceral Adiposity Index in Non-Alcoholic Fatty Liver Disease and Liver Fibrosis — Systematic Review and Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, December 2021. http://dx.doi.org/10.37766/inplasy2021.12.0056.

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Review question / Objective: The objective of the study was to compare the mean difference and AUROC of Visceral Adiposity Index (VAI) in NAFLD/NASH/liver fibrosis patients and controls in observational studies. Condition being studied: Nonalcoholic fatty liver disease (NAFLD) is a multi-system disease, being mainly a liver pathology involving excessive hepatic fat accumulation unrelated to alcohol consumption or other secondary causes of hepatic steatosis. It is an emerging cause of concern and increasing clinical burden, imposing a public health challenge. NAFLD is the most common chronic liver disease and is predicted to be the most common indication for a liver transplant in Western countries by 2030, owing to a prevalence of 25% worldwide. The visceral adiposity index (VAI) is a scoring system based on body mass index, triglycerides, high-density lipoproteins (HDLs), and waist circumferences (WCs).

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Allen, Kathy, Andy Nadeau, and Andy Robertston. Natural resource condition assessment: Salinas Pueblo Missions National Monument. National Park Service, May 2022. http://dx.doi.org/10.36967/nrr-2293613.

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The Natural Resource Condition Assessment (NRCA) Program aims to provide documentation about the current conditions of important park natural resources through a spatially explicit, multi-disciplinary synthesis of existing scientific data and knowledge. Findings from the NRCA will help Salinas Pueblo Missions National Monument (SAPU) managers to develop near-term management priorities, engage in watershed or landscape scale partnership and education efforts, conduct park planning, and report program performance (e.g., Department of the Interior’s Strategic Plan “land health” goals, Government Performance and Results Act). The objectives of this assessment are to evaluate and report on current conditions of key park resources, to evaluate critical data and knowledge gaps, and to highlight selected existing stressors and emerging threats to resources or processes. For the purpose of this NRCA, staff from the National Park Service (NPS) and Saint Mary’s University of Minnesota – GeoSpatial Services (SMUMN GSS) identified key resources, referred to as “components” in the project. The selected components include natural resources and processes that are currently of the greatest concern to park management at SAPU. The final project framework contains nine resource components, each featuring discussions of measures, stressors, and reference conditions. This study involved reviewing existing literature and, where appropriate, analyzing data for each natural resource component in the framework to provide summaries of current condition and trends in selected resources. When possible, existing data for the established measures of each component were analyzed and compared to designated reference conditions. A weighted scoring system was applied to calculate the current condition of each component. Weighted Condition Scores, ranging from zero to one, were divided into three categories of condition: low concern, moderate concern, and significant concern. These scores help to determine the current overall condition of each resource. The discussions for each component, found in Chapter 4 of this report, represent a comprehensive summary of current available data and information for these resources, including unpublished park information and perspectives of park resource managers, and present a current condition designation when appropriate. Each component assessment was reviewed by SAPU resource managers, NPS Southern Colorado Plateau Network (SCPN) staff, or outside experts. Existing literature, short- and long-term datasets, and input from NPS and other outside agency scientists support condition designations for components in this assessment. However, in some cases, data were unavailable or insufficient for several of the measures of the featured components. In other instances, data establishing reference condition were limited or unavailable for components, making comparisons with current information inappropriate or invalid. In these cases, it was not possible to assign condition for the components. Current condition was not able to be determined for six of the ten components due to these data gaps. For those components with sufficient available data, the overall condition varied. Two components were determined to be in good condition: dark night skies and paleontological resources. However, both were at the edge of the good condition range, and any small decline in conditions could shift them into the moderate concern range. Of the components in good condition, a trend could not be assigned for paleontological resources and dark night skies is considered stable. Two components (wetland and riparian communities and viewshed) were of moderate concern, with no trend assigned for wetland and riparian communities and a stable trend for viewshed. Detailed discussion of these designations is presented in Chapters 4 and 5 of this report. Several park-wide threats and stressors influence the condition of priority resources in SAPU...

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Greenhill, Lucy. MASTS ‘Brexit’ event – summary report. Marine Alliance for Science and Technology for Scotland (MASTS), 2017. http://dx.doi.org/10.15664/10023.25094.

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Background. As negotiations continue in relation to the UK’s departure from the European Union, considerable uncertainty remains around the final structure of any deal and the implications across all policy areas. Maritime issues are of key concern in Scotland and numerous reports and opinions are accumulating, highlighting significant areas of concern, ranging from fisheries to decommissioning, and some potential opportunities. There is a critical need for knowledge and capacity to support and influence the on-going negotiation process, at both the Scottish and UK level. Expertise regarding the broad range of marine research, operations and commerce is in demand to support discussion, promote interests and secure advances where possible. Such discussion must be based on the best available science but taking into account the socio-economic and historical context. The Marine Alliance for Science and Technology for Scotland1 (MASTS) is supporting this discussion, providing scientific expertise and promoting the development of emerging policy and progress towards sustainable marine management, during the transition period and for the post-departure UK organisation. This workshop, supported by MASTS, brought government and academia together to consider the legal, governmental and research framework under which Brexit is taking place and to identify priority areas and activities where information can be shared and options considered for enhancing scientific support for the Brexit process. The objectives were to: • Understand current status of Brexit with respect to marine systems and research capacity, including the legislative framework • Identify the priority gaps in knowledge • Develop ways to enhance communication pathways for the best scientific advice required to support the Brexit process.

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Kennedy, Alan, Mark Ballentine, Andrew McQueen, Christopher Griggs, Arit Das, and Michael Bortner. Environmental applications of 3D printing polymer composites for dredging operations. Engineer Research and Development Center (U.S.), January 2021. http://dx.doi.org/10.21079/11681/39341.

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This Dredging Operations Environmental Research (DOER) technical note disseminates novel methods to monitor and reduce contaminant mobility and bioavailability in water, sediments, and soils. These method advancements are enabled by additive manufacturing (i.e., three-dimensional [3D] printing) to deploy and retrieve materials that adsorb contaminants that are traditionally applied as unbound powders. Examples of sorbents added as amendments for remediation of contaminated sediments include activated carbon, biochar, biopolymers, zeolite, and sand caps. Figure 1 provides examples of sorbent and photocatalytic particles successfully compounded and 3D printed using polylactic acid as a binder. Additional adsorptive materials may be applicable and photocatalytic materials (Friedmann et al. 2019) may be applied to degrade contaminants of concern into less hazardous forms. This technical note further describes opportunities for U.S. Army Corps of Engineers (USACE) project managers and the water and sediment resource management community to apply 3D printing of polymers containing adsorptive filler materials as a prototyping tool and as an on-site, on-demand manufacturing capability to remediate and monitor contaminants in the environment. This research was funded by DOER project 19-13, titled “3D Printed Design for Remediation and Monitoring of Dredged Material.”

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