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Journal articles on the topic 'Pollutant mixture'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Noël, Florian, Claire Trocquet, Christophe A. Serra, and Stéphane Le Calvé. "Experimental Validation of a Novel Generator of Gas Mixtures Based on Axial Gas Pulses Coupled to a Micromixer." Micromachines 12, no. 6 (2021): 715. http://dx.doi.org/10.3390/mi12060715.

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In this work, a novel generator of gas mixtures previously numerically investigated and based on axial gas pulses coupled to a micromixer has been conceived, manufactured, and validated. Standard gaseous pollutant mixtures and pure nitrogen or pure air were introduced in a microdevice designed to generate alternating axial gas pulses which were downstream homogenized by means of a multi-stage modular micromixer. The dilution, and therefore the final pollutant concentration, was controlled by two parameters: the ratio between the times of each of the two gas pulses and the partial pressure of t

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Surakasi, Raviteja, Mohd Yunus Khan, Arif Senol Sener, et al. "Analysis of Environmental Emission Neat Diesel-Biodiesel–Algae Oil-Nanometal Additives in Compression Ignition Engines." Journal of Nanomaterials 2022 (February 28, 2022): 1–7. http://dx.doi.org/10.1155/2022/3660233.

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The production of biodiesel as an alternative fuel and its use as a mixture and other additives are presented. In the present research work, additive blends with diesel biodiesel from algae oil are physically characterised and an analysis of pollutant emissions is carried out when used in an ignition engine by compression. The measurement of pollutant emissions is carried out through a combined emission analyzer adapted to a system of valves attached to the experimental facility. The properties of each mixture with the polluting emissions are compared with that of the reference diesel. It was

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Nitu, Sehrawat, and Chauhan Ritika. "Investigatory Studies on Pattern in Enhancement in Fine Particulate Matter in the Delhi during winters." INTERNATIONAL JOURNAL OF PHARMACEUTICAL AND BIO-MEDICAL SCIENCE 03, no. 03 (2023): 98–101. https://doi.org/10.5281/zenodo.7695115.

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Smog is a harmful mixture of fog, smoke, dust and air pollutants such as nitrogen oxides, volatile organic compounds etc. Ground ozone can cause distressing health effect. Smog is a complex atmospheric pollutant mixture consisting of ozone, a pollutant with adverse effects on human health, vegetation, and materials; other eye-irritant and phytotoxic pollutants (such as aldehydes and peroxyacetyl nitrates); nitrogen dioxide (cause of the “whiskey-brown” color in the Los-Angeles atmosphere); and fine particles that cause adverse health effects, reduce visibility, and cause

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Rodea-Palomares, Ismael, Miguel Gonzalez-Pleiter, Soledad Gonzalo, et al. "Hidden drivers of low-dose pharmaceutical pollutant mixtures revealed by the novel GSA-QHTS screening method." Science Advances 2, no. 9 (2016): e1601272. http://dx.doi.org/10.1126/sciadv.1601272.

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The ecological impacts of emerging pollutants such as pharmaceuticals are not well understood. The lack of experimental approaches for the identification of pollutant effects in realistic settings (that is, low doses, complex mixtures, and variable environmental conditions) supports the widespread perception that these effects are often unpredictable. To address this, we developed a novel screening method (GSA-QHTS) that couples the computational power of global sensitivity analysis (GSA) with the experimental efficiency of quantitative high-throughput screening (QHTS). We present a case study

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Mariani, M. L., M. D. Labas, R. J. Brandi, A. E. Cassano, and C. S. Zalazar. "Degradation of a mixture of pollutants in water using the UV/H2O2 process." Water Science and Technology 61, no. 12 (2010): 3026–32. http://dx.doi.org/10.2166/wst.2010.255.

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The degradation reaction of a simple mixture of pollutants (dichloroacetic acid + formic acid) employing H2O2 and UVC radiation (253.7 nm) has been studied in a well-mixed reactor which operates inside a recycling system. The aim of this work is to develop a systematic methodology for treating degradation of mixtures of pollutants, starting from a rather manageable system to more complex aggregates. In this contribution, the effects of different variables such as hydrogen peroxide/pollutant mixture initial concentration ratio, pH and incident radiation at the reactor wall were studied. The res

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Shi, Hanxu, Qiang Zhou, Hongjuan Zhang, et al. "The Combined Effects of Hourly Multi-Pollutant on the Risk of Ambulance Emergency Calls: A Seven-Year Time Series Study." Toxics 11, no. 11 (2023): 895. http://dx.doi.org/10.3390/toxics11110895.

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Background: Ambulance emergency calls (AECs) are seen as a more suitable metric for syndromic surveillance due to their heightened sensitivity in reflecting the health impacts of air pollutants. Limited evidence has emphasized the combined effect of hourly air pollutants on AECs. This study aims to investigate the combined effects of multipollutants (i.e., PM2.5, PM10, Ozone, NO2, and SO2) on all-cause and cause-specific AECs by using the quantile g-computation method. Methods: We used ambulance emergency dispatch data, air pollutant data, and meteorological data from between 1 January 2013 an

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Masselot, Pierre, Haidong Kan, Shailesh K. Kharol, et al. "Air pollution mixture complexity and its effect on PM2.5-related mortality: A multicountry time-series study in 264 cities." Environmental Epidemiology 8, no. 6 (2024): e342. http://dx.doi.org/10.1097/ee9.0000000000000342.

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Background: Fine particulate matter (PM2.5) occurs within a mixture of other pollutant gases that interact and impact its composition and toxicity. To characterize the local toxicity of PM2.5, it is useful to have an index that accounts for the whole pollutant mix, including gaseous pollutants. We consider a recently proposed pollutant mixture complexity index (PMCI) to evaluate to which extent it relates to PM2.5 toxicity. Methods: The PMCI is constructed as an index spanning seven different pollutants, relative to the PM2.5 levels. We consider a standard two-stage analysis using data from 26

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Gruhlke, Pascal, Christian Beck, Bertram Janus, and Andreas M. Kempf. "LES Analysis of CO Emissions from a High Pressure Siemens Gas Turbine Prototype Combustor at Part Load." Energies 13, no. 21 (2020): 5751. http://dx.doi.org/10.3390/en13215751.

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This work contributes to the understanding of mechanisms that lead to increased carbon monoxide (CO) concentrations in gas turbine combustion systems. Large-eddy simulations (LES) of a full scale high pressure prototype Siemens gas turbine combustor at three staged part load operating conditions are presented, demonstrating the ability to predict carbon monoxide pollutants from a complex technical system by investigating sources of incomplete CO oxidation. Analytically reduced chemistry is applied for the accurate pollutant prediction together with the dynamic thickened flame model. LES result

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Grum, M., R. H. Aalderink, L. Lijklema, and H. Spliid. "The underlying structure of systematic variations in the event mean concentrations of pollutants in urban runoff." Water Science and Technology 36, no. 8-9 (1997): 135–40. http://dx.doi.org/10.2166/wst.1997.0656.

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Urban runoff pollution can essentially be characterised by fluid quantities and pollutant concentrations. It has been possible to construct models accounting for variations in runoff quantities with some success. However, although several pollutant storage and transport mechanisms have been postulated there still remains substantial unexplained variation in pollutant concentrations. Through a series of well established multivariate pattern recognition techniques the present study has aimed at disclosing the underlying structure of systematic variations in the event mean concentrations (EMC) of

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Hammes, Gabriela, and Liseane Padilha Thives. "Porous Asphalt Mixture with Improved Fatigue Resistance and Stormwater Pollutant Reduction in Urban Road Pavement." Water 15, no. 16 (2023): 2962. http://dx.doi.org/10.3390/w15162962.

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One alternative measure to minimise the stormwater runoff volume and its pollutants and reduce impervious areas is to use permeable pavement. However, due to weak mechanical performance under heavy-load traffic related to fatigue resistance, porous mixtures and permeable pavements have restricted applications, i.e., parking lots and low-traffic roads. This work aims to evaluate the fatigue resistance of a porous asphalt mixture produced with highly modified asphalt (HiMA) and its potential contribution to reducing stormwater runoff and pollutants. In order to estimate the capability of runoff

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Wang, Chaohui, Qian Chen, Qiang Joshua Li, Xiaolong Sun, and Zhenxia Li. "A Quantitative Rating System for Pollutant Emission Reduction of Asphalt Mixture." Mathematical Problems in Engineering 2017 (2017): 1–15. http://dx.doi.org/10.1155/2017/3761850.

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This study presents a comprehensive pollutant reduction rating system for hot mix asphalt (HMA) with three Level I indices and ten Level II indices, covering various aspects in HMA pollutant emissions, energy consumption, and exhausts from construction equipment. The pollutant emission reduction effects are investigated not only in the laboratory for modified asphalt mixtures with various mixture gradation and binder types but also in the field for several warm mix asphalt (WMA) projects. Furthermore, energy consumption and emission data during pavement construction are obtained from 58 in sit

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Satuf, M. L., S. José, J. C. Paggi, R. J. Brandi, A. E. Cassano, and O. M. Alfano. "Reactor modeling in heterogeneous photocatalysis: toxicity and biodegradability assessment." Water Science and Technology 61, no. 10 (2010): 2491–99. http://dx.doi.org/10.2166/wst.2010.072.

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Photocatalysis employing titanium dioxide is a useful method to degrade a wide variety of organic and inorganic pollutants from water and air. However, the application of this advanced oxidation process at industrial scale requires the development of mathematical models to design and scale-up photocatalytic reactors. In the present work, intrinsic kinetic expressions previously obtained in a laboratory reactor are employed to predict the performance of a bench scale reactor of different configuration and operating conditions. 4-Chlorophenol was chosen as the model pollutant. The toxicity and b

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Mishra, R. K., and Sunil Chandel. "Numerical Analysis of Exhaust Emission from an Aero Gas Turbine Combustor under Fuel-Rich Condition." International Journal of Turbo & Jet-Engines 36, no. 4 (2019): 411–24. http://dx.doi.org/10.1515/tjj-2016-0079.

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Abstract Emission characteristic of an aero gas turbine combustor has been studied under fuel-rich condition. The combustor has been designed to operate at rich fuel-air mixture and may experience very high mixture up to equivalence ratio of 3.0 in the primary zone in the event of atomizer deterioration and flow passage distortion or during some maneuver. The concentration of major engine emission/pollutant constituents at combustor exhaust such as CO, NOx, soot, unburned hydrocarbons and atmospheric pollutants such as CO2 and water vapor has been analyzed at fuel-rich high equivalence ratio u

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Liu, Kezhou, Ying Xu, Mengjie Ying, and Meiling Chen. "Impact of a Nanoscale Iron–Chlorobenzene Mixture on Pulmonary Injury in Rat Pups: Extending Exposure Knowledge Using Network Technology." Toxics 13, no. 3 (2025): 221. https://doi.org/10.3390/toxics13030221.

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Particulate matter coexists with persistent organic pollutants (POPs) in the atmosphere, which can enter the human body by accompanying inhalable particles in the respiratory tract. Photochemical conversion further alters the chemical composition of the precursor particles and secondary products. This study investigated the effects of nanoscale iron–chlorobenzene mixtures and their photochemical conversion products on early lung development in rat pups. Using network toxicology and animal experiments, we constructed a compound toxicity–target network and developed air exposure models. This stu

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Martins-Costa, M. L., R. M. Saldanha da Gama, and J. H. Carneiro de Araujo. "HYPERBOLIC DESCRIPTION OF CONTAMINATED FLOW THROUGH AN UNSATURATED WELLBORE." Revista de Engenharia Térmica 6, no. 1 (2007): 11. http://dx.doi.org/10.5380/reterm.v6i1.61810.

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This work studies the flow of a mixture of two fluids – a Newtonian fluid and a pollutant – through a rigid cylindrical shell porous matrix. Aiming to build a preliminary local model for the flow of a Newtonian fluid containing a pollutant through a wellbore, a mixture theory approach is employed. The mixture consists of four overlapping continuous constituents: one solid (porous medium), one liquid (Newtonian fluid), the pollutant (solid, liquid or gas) and an inert gas included to account for the compressibility of the mixture as a whole. Assuming the flow on radial direction only, a set of

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Chow, Sabrina S., Ying Wang, Jeremy A. Sarnat, et al. "Metabolomics signatures of air pollution mixtures and lung cancer risk: A large-scale metabolome-wide association study in the Cancer Prevention Study cohorts." Journal of Clinical Oncology 42, no. 16_suppl (2024): 10571. http://dx.doi.org/10.1200/jco.2024.42.16_suppl.10571.

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10571 Background: Despite the well-established link between air pollution exposure and lung carcinogenesis, the underlying mechanism remains underexplored. While metabolomics has provided valuable molecular insights, existing air pollution metabolomics studies only assess biological changes to single air pollutants, without examining the join effects of air pollutant mixtures. We sought to identify metabolic signatures mediating the association between ambient air pollution mixtures and lung cancer risk. Methods: A total of 603 matched lung cancer case-control pairs were selected from the Canc

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Tama, Yanuar Bhakti Wira, and Robby Robby. "MIXTURE PURIFICATION MODEL WITH CASCADING TANK CONFIGURATION." Journal of Fundamental Mathematics and Applications (JFMA) 7, no. 1 (2024): 20–25. http://dx.doi.org/10.14710/jfma.v7i1.22480.

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Consider mixing problems which are often found in Calculus or Differential Equation courses. Under some assumptions, this problem can be used to model the purification process in a polluted mixture. In this case, the cascading configuration will be investigated for modelling the spread of pollution from one mixture to another. There are two main problems: finding time needed so the amount of pollutant in mixture inside the certain tank does not exceed certain threshold and finding the number of tanks needed so that the amount of mixture in the last tank does not exceed certain threshold. The s

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Rizzi, Romanazzi, Gubitosa, et al. "Chitosan Film as Eco-Friendly and Recyclable Bio-Adsorbent to Remove/Recover Diclofenac, Ketoprofen, and their Mixture from Wastewater." Biomolecules 9, no. 10 (2019): 571. http://dx.doi.org/10.3390/biom9100571.

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This paper reported the first example on the use of chitosan films, without further modification, to remove and recover, through bio-sorption processes, the emerging pollutant Diclofenac from water. The latter was adopted as a model, among non-steroidal anti-inflammatory drugs, by obtaining a maximum adsorption capacity, qmax, on chitosan of about 10 mg/g, under the applied experimental conditions of work. The literature gap about the use of chitosan films, which was already used for dyes and heavy metals removal, to adsorb emerging pollutants from water was covered, claiming the wide range ap

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Kamsing, Patcharin, Chunxiang Cao, Wuttichai Boonpook, Sornkitja Boonprong, Min Xu, and Pisit Boonsrimuang. "Artificial Neural Network for Air Pollutant Concentration Predictions Based on Aircraft Trajectories over Suvarnabhumi International Airport." Atmosphere 16, no. 4 (2025): 366. https://doi.org/10.3390/atmos16040366.

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Air pollutant concentration prediction is essential not only for effective air quality management but also for planning aircraft and ground vehicle route networks in terminal areas. In this work, an artificial neural network (ANN) is used to predict the concentration levels of four types of air pollutants (CO, NO2, PM2.5, and PM10) at Suvarnabhumi International Airport. By leveraging Automatic Dependent Surveillance-Broadcast (ADS-B) historical data, aircraft trajectory pattern clustering is implemented by using K-means and Gaussian mixture model (GMM) clustering algorithms. Then, those trajec

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Bragg, Megan G., Irena Gorski-Steiner, Ashley Song, et al. "Prenatal air pollution and children’s autism traits score: Examination of joint associations with maternal intake of vitamin D, methyl donors, and polyunsaturated fatty acids using mixture methods." Environmental Epidemiology 8, no. 4 (2024): e316. http://dx.doi.org/10.1097/ee9.0000000000000316.

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Background: Maternal nutrient intake may moderate associations between environmental exposures and children’s neurodevelopmental outcomes, but few studies have assessed joint effects. We aimed to evaluate whether prenatal nutrient intake influences the association between air pollutants and autism-related trait scores. Methods: We included 126 participants from the EARLI (Early Autism Risk Longitudinal Investigation, 2009–2012) cohort, which followed US pregnant mothers who previously had a child with autism. Bayesian kernel machine regression and traditional regression models were used to exa

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Alharbi, Randa, and Abeer Algarni. "Advanced machine learning techniques for predicting NOx levels." Thermal Science 28, no. 6 Part B (2024): 4979–89. https://doi.org/10.2298/tsci2406979a.

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This study explores the application of machine learning techniques to forecast atmospheric pollutant concentrations, focusing on NOx, NO2, and NO over the period from January 1, 2017, to December 1, 2017. Accurate prediction of air pollutant levels is crucial for effective environmental monitoring and public health protection. The research employs the Gaussian mixture model and decision tree model to analyze and predict pollutant data. The methodology encompasses rigorous data preprocessing steps, including cleaning and normalization, followed by model training and validation using cross-valid

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Tsuzuki, Yoshiaki, Thammarat Koottatep, Thitiphon Sinsupan, et al. "A concept for planning and management of on-site and centralised municipal wastewater treatment systems, a case study in Bangkok, Thailand. II: Scenario-based pollutant load analysis." Water Science and Technology 67, no. 9 (2013): 1934–44. http://dx.doi.org/10.2166/wst.2013.024.

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Scenario-based pollutant load analysis was conducted to develop a part of a concept for planning and management of wastewater treatment systems (WWTSs) under the mixture conditions of centralised and on-site WWTSs. Pollutant discharge indicators and pollutant removal efficiency functions were applied from another paper in the series, which were developed based on the existing conditions in urban and peri-urban areas of Bangkok, Thailand. Two scenarios were developed to describe development directions of the mixture conditions. Scenario 1 involves keeping the on-site wastewater treatment plants

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Chupa, Volodymyr, and Liubomyr Zhovtulia. "Study of emissions into the atmosphere from the combustion of pellets and solid waste." Ecological Safety and Balanced Use of Resources 14, no. 2 (2023): 50–60. http://dx.doi.org/10.69628/esbur/2.2023.50.

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The problem of waste is becoming increasingly urgent as the volume of waste and its negative impact on the environment grow. Thermal treatment is one of the most effective methods of reducing the volume of waste, but it also results in the release of pollutants into the atmosphere. Therefore, the study of air emissions from the incineration of different types of waste, as well as pellets made from different types of wood, was the aim of this research. During the visit to the solid waste landfill in Rybne village, waste samples were collected for further research. A comparative analysis of the

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Touazi, Ahmed Amin, Mabrouk Abidi, Nacer Belkessa, Mohamed-Aziz Hajjaji, Walid Elfalleh, and Amine Aymen Assadi. "Removal of a Mixture of Pollutants in Air Using a Pilot-Scale Planar Reactor: Competition Effect on Mineralization." Catalysts 15, no. 6 (2025): 595. https://doi.org/10.3390/catal15060595.

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This study investigated the remediation of organic acid pollutants, specifically butyric acid (C4H8O) and valeric acid (C5H10O2), as well as their binary mixtures in the vapor phase at various ratios. The remediation process involved the use of a continuous pilot-scale reactor. A TiO2 catalyst was deposited on glass fiber tissue (GFT) and ultraviolet (UV) irradiation with an intensity of 20 W/m2. The main objective of this study was to assess the effectiveness of the photocatalytic process by oxidizing and mineralizing a mixture of carboxylic acids in a rectangular reactor at pilot scale. This

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Rodzi, Nur Atikah Amirah Mat, Norhafezah Kasmuri, Nurfadhilah Zaini, Noor Azreen Abu Azri, and Satoto Endar Nayono. "Analysis of Algae and Bacteria Mixture in Removing Pollutants from Laundry Wastewater." IOP Conference Series: Earth and Environmental Science 1303, no. 1 (2024): 012021. http://dx.doi.org/10.1088/1755-1315/1303/1/012021.

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Abstract Laundry detergents contain high nutrients, especially phosphate and nitrogen compounds. High concentrations of these nutrients can cause eutrophication to the water bodies and are toxic to aquatic organisms. Thus, this study aims to identify the characteristics of laundry wastewater and to enhance the treatment for the pollutants using algae and bacteria mixture. Moreover, the removal efficiency for this pollutant has been determined after the batch experiment. The characteristics of laundry wastewater were evaluated using in-situ and laboratory analysis. The in-situ testing included

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Sandul, Оlga, Taras Titov, Anna Kulyk, Halyna Sakalova, and Kateryna Petrushka. "REUSE OF THE SPENT SORBENT MIXTURE FOR WASTEWATER TREATMENT." Environmental Problems 9, no. 4 (2024): 193–98. https://doi.org/10.23939/ep2024.04.193.

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Much of the sorbent used in the food industry is not re-used because it is difficult to regenerate and expensive. Also, the reuse of used sorbents involves their biological cleaning, which is due to the specificity of adsorbed materials. As a result, they are often stored off-site or disposed of in landfills, usually without authorization. It is more promising to use such sorbents in waste water treatment, especially in the same food industry and in other industries where wastewater contains bioorganic substances. Studies have been made on the reuse of a used sorbent mixture, consisting of act

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Tsai, Shang-Shyue, Hui-Fen Chiu, and Chun-Yuh Yang. "Ambient Air Pollution and Hospital Admissions for Peptic Ulcers in Taipei: A Time-Stratified Case-Crossover Study." International Journal of Environmental Research and Public Health 16, no. 11 (2019): 1916. http://dx.doi.org/10.3390/ijerph16111916.

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Very few studies have been performed to determine whether there is a relationship between air pollution and increases in hospitalizations for peptic ulcer, and for those that have occurred, their results may not be completely relevant to Taiwan, where the mixture of ambient air pollutants differ. We performed a time-stratified case-crossover study to investigate the possible association between air pollutant levels and hospital admissions for peptic ulcer in Taipei, Taiwan. To do this, we collected air pollution data from Taiwan's Environmental Protection Agency and hospital admissions for pep

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Tsuzuki, Yoshiaki, Thammarat Koottatep, Thitiphon Sinsupan, et al. "A concept for planning and management of on-site and centralised municipal wastewater treatment systems, a case study in Bangkok, Thailand. I: Pollutant discharge indicators and pollutant removal efficiency functions." Water Science and Technology 67, no. 9 (2013): 1923–33. http://dx.doi.org/10.2166/wst.2013.053.

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The concept of pollution load indicators for planning and management of the mixture conditions of centralised and on-site wastewater treatment systems has not been discussed in detail so far. In this paper, pollutant discharge (load) indicators and pollutant removal efficiencies were quantitatively analysed to develop a part of a strategy for planning and management of municipal wastewater treatment systems (WWTSs) under the mixture conditions in Bangkok, Thailand, as a case study. Pollutant discharge indicators of on-site WWTSs were estimated based on the relevant literature. Three kinds of p

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Kumar, Praveen C., and Joseph A. Wehrmeyer. "Stack Gas Pollutant Detection Using Laser Raman Spectroscopy." Applied Spectroscopy 51, no. 6 (1997): 849–55. http://dx.doi.org/10.1366/0003702971941133.

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An experimental system to investigate the feasibility of using laser Raman spectroscopy to detect stack gas pollutants is described. With spontaneous Raman spectroscopy, one unit is capable of measuring all gas species simultaneously and, when applied to a continuous emissions monitoring (CEM) system, could both simplify it and improve reliability. Minimum detectabilities with the use of this weak light scattering process were determined for the three primary pollutants from coal-based power plants: carbon monoxide (CO), sulfur dioxide (SO2), and nitric oxide (NO). A frequency-doubled, pulsed

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Gyorkos, J., M. A. Denomme, B. Leece, K. Homonko, V. E. Valli, and S. Safe. "Reconstituted halogenated hydrocarbon pesticide and pollutant mixtures found in human tissues: effects on the immature male Wistar rat after short-term exposure." Canadian Journal of Physiology and Pharmacology 63, no. 1 (1985): 36–43. http://dx.doi.org/10.1139/y85-006.

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Halogenated hydrocarbon insecticides and polychlorinated biphenyl (PCB) mixtures are routinely detected as residues in human adipose tissue, serum, and milk. Based on average values observed in analytical studies, reconstituted halogenated hydrocarbon pesticide mixtures and PCB mixtures were prepared and administered to immature male Wistar rats. The mixtures were administered at dose levels which approximate the concentrations which would be absorbed by an infant suckling for 180 days (low dose, L), and at three higher dose levels (2 × L, 10 × L, and 100 × L). The pesticide mixture contained

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M., Aggerbeck, and Blanc E.B. "Role of mixtures of organic pollutants in the development of metabolic disorders via the activation of xenosensors." Current Opinion in Toxicology 8 (September 11, 2018): 57–65. https://doi.org/10.1016/j.cotox.2018.01.001.

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Environmental pollutants, particularly persistent organic pollutants but also widespread short-lived ones (bisphenol family and phthalates), also may be endocrine disruptors. These molecules are emerging in the etiology of the world-wide epidemic of chronic diseases such as obesity, diabetes and the metabolic syndrome. These pollutants mainly bind either xenosensors or endocrine receptors, which then act as transcription factors. On the one hand, recent epidemiological studies have pinpointed the association between human exposure to mixtures of such contaminants and metabolic disorders. On th

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Bouziane Errahmani, Khelil, Ouassila Benhabiles, Sohbi Bellebia, Zohra Bengharez, Mattheus Goosen, and Hacene Mahmoudi. "Photocatalytic Nanocomposite Polymer-TiO2 Membranes for Pollutant Removal from Wastewater." Catalysts 11, no. 3 (2021): 402. http://dx.doi.org/10.3390/catal11030402.

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Photocatalytic TiO2-PVDF/PMMA nano-composites flat sheet membranes were fabricated by phase inversion and then employed in a crossflow filtration pilot to remove model pollutants of various sizes and charge from aqueous solution. The dope solution contained a mixture of PVDF and PMMA as polymers, polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP) as additives, triethyl phosphate (TEP) as green solvent and TiO2 as immobilized photo catalyst. After undergoing characterization tests such as SEM morphology thickness, porosity, contact angle and water permeability, the membranes were used to

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Jovanovic, Gordana, Mirjana Perisic, Nebojsa Bacanin, et al. "Potential of Coupling Metaheuristics-Optimized-XGBoost and SHAP in Revealing PAHs Environmental Fate." Toxics 11, no. 4 (2023): 394. http://dx.doi.org/10.3390/toxics11040394.

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Polycyclic aromatic hydrocarbons (PAHs) refer to a group of several hundred compounds, among which 16 are identified as priority pollutants, due to their adverse health effects, frequency of occurrence, and potential for human exposure. This study is focused on benzo(a)pyrene, being considered an indicator of exposure to a PAH carcinogenic mixture. For this purpose, we have applied the XGBoost model to a two-year database of pollutant concentrations and meteorological parameters, with the aim to identify the factors which were mostly associated with the observed benzo(a)pyrene concentrations a

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Huang, Lijun, Chaoqiong Fang, Ting Pan, et al. "Hydrogen Production via Electrolysis of Wastewater." Nanomaterials 14, no. 7 (2024): 567. http://dx.doi.org/10.3390/nano14070567.

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The high energy consumption of traditional water splitting to produce hydrogen is mainly due to complex oxygen evolution reaction (OER), where low-economic-value O2 gas is generated. Meanwhile, cogeneration of H2 and O2 may result in the formation of an explosive H2/O2 gas mixture due to gas crossover. Considering these factors, a favorable anodic oxidation reaction is employed to replace OER, which not only reduces the voltage for H2 production at the cathode and avoids H2/O2 gas mixture but also generates value-added products at the anode. In recent years, this innovative strategy that combi

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Wielsøe, Maria, Christian Bjerregaard-Olesen, Peder Kern, and Eva Cecilie Bonefeld-Jørgensen. "Receptor activities of persistent pollutant serum mixtures and breast cancer risk." Endocrine-Related Cancer 25, no. 3 (2018): 201–15. http://dx.doi.org/10.1530/erc-17-0366.

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Studies on associations between persistent organic pollutants (POPs) and breast cancer risk are inconclusive. The majority of studies have evaluated the effect of single compounds, without considering multiple exposures to and interactions between different POPs. The present study aimed at evaluating breast cancer risk related to combined effects of serum POP mixtures on cellular receptor functions. Data on breast cancer cases (n = 77) and controls (n = 84) were collected among Greenlandic Inuit women. Serum mixtures of lipophilic POPs (lipPOPs), perfluoroalkyl acids (PFAAs) and dioxin-like PO

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Billionnet, Cécile, Duane Sherrill, and Isabella Annesi-Maesano. "Estimating the Health Effects of Exposure to Multi-Pollutant Mixture." Annals of Epidemiology 22, no. 2 (2012): 126–41. http://dx.doi.org/10.1016/j.annepidem.2011.11.004.

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Wang, Chaohui, Qiang Li, Kevin C. P. Wang, Xiaolong Sun, and Xuancang Wang. "Emission Reduction Performance of Modified Hot Mix Asphalt Mixtures." Advances in Materials Science and Engineering 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/2506381.

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Three novel asphalt modifiers with pollutant emission reduction effects and new emissions measurement equipment compatible with several preexisting asphalt production systems are developed in this paper. The effects of various modifier, asphalt binder type, and gradation of hot mix asphalt (HMA) on pollutant emissions are evaluated in the lab through a comprehensive experimental design. Furthermore, road performances are monitored to evaluate the emissions reduction of modified HMA mixture for production. With increasing modifier content, the emissions reduction performance is improved markedl

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Povis, Arlitt Amy Lozano, and Elías Adrián Sanabria Pérez. "Wastewater treatment using microbial enzymatic mixture." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 18 (March 17, 2023): 1–12. http://dx.doi.org/10.4136/ambi-agua.2866.

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The effectiveness of the use of microbial enzymes as a wastewater treatment method depends on factors such as temperature, pressure, and oxygenation level, among others. However, very few scientific studies have provided real data regarding the evaluation of the applicability of this type of treatment. This research was therefore carried out to evaluate the effect of temperature and aerobic treatment time on the level of treatment of wastewater pollutants, with a mixture composed of enzymes and aerobic microorganisms under environmental conditions in the city of Huancayo, Peru. For this purpos

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Silva, Flávio C. da, Felipe N. Aranha, Gerd B. Angelkorte, Juan F. H. Guardiola, Luciana P. Teixeira, and Ricardo C. de B. Correia. "Quantification and qualification of exhaust gases in agricultural diesel engine operating with biodiesel mixtures." Revista Brasileira de Engenharia Agrícola e Ambiental 23, no. 10 (2019): 794–99. http://dx.doi.org/10.1590/1807-1929/agriambi.v23n10p794-799.

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ABSTRACT Diesel cycle engines are widely used in agricultural machinery. Biodiesel offers the possibility of partial or total replacement of mineral diesel, thus reducing the dependence of agriculture on this non-renewable resource and decreasing pollutant emissions. The objective of this study was to evaluate the emissions of CO, NOx, SO2, CO2, and O2 from various biodiesel mixtures (B0 = 0%, B7 = 7%, B10 = 10%, B20 = 20%, B30 = 30% and B100 = 100%) in a single-cylinder tractor engine at 1000, 1600 and 2400 rpm. The exhaust gases were identified using a gas probe meter. Fuels with a higher pe

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Tzortzi, Julia Nerantzia, and Rola Hasbini. "A Classification Review on Green Concrete." Advanced Materials Research 1166 (September 27, 2021): 113–23. http://dx.doi.org/10.4028/www.scientific.net/amr.1166.113.

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This paper is a short review of green concrete as claimed per latest related available literature. Green concrete refers to concrete mixture with lower carbon footprint, during its total life cycle, as compared to ordinary concrete mixture. This may be due to its composition of one or more green component (s) such as silica fume or fly ash, or to its capacity, as a building material, to reduce one or more pollutant (s) and/or to any other sustainable concrete procedure such as reduced raw materials depletion. A leading Italian concrete production group claims the provision of a new air scrubbi

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Carlanescu, Razvan, Marius Enache, Raluca Maier, et al. "Calculation of the main parameters involved in the combustion process of CH4-H2 mixtures at different proportions." E3S Web of Conferences 180 (2020): 01013. http://dx.doi.org/10.1051/e3sconf/202018001013.

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By setting clear targets for reducing pollutant emissions, the researchers in the field of combustion are pushed lately to find new alternatives for cleaner combustion. The partial or total transition to other types of fuels, such as hydrogen, involves substantial changes in the combustion process and possible necessary constructive changes. In the study of the combustion of CH4-H2 mixtures, both numerically and experimentally, preliminary calculations are required, which will help to easily establish the parameters and working regimes and then to use for verifying the results. This paper aims

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A., Ambolet-Camoit, Ottolenghi C., Leblanc A., et al. "Two persistent organic pollutants which act through different xenosensors (alpha-endosulfan and 2,3,7,8 tetrachlorodibenzo-p-dioxin) interact in a mixture and downregulate multiple genes involved in human hepatocyte lipid and glucose metabolism." Biochimie 116 (July 6, 2015): 79–91. https://doi.org/10.1016/j.biochi.2015.07.003.

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Individuals, typically, are exposed to mixtures of environmental xenobiotics affecting multiple organs and acting through different xenosensors and pathways in species and cell-type specific manners. 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and α-endosulfan are Persistent Organic Pollutants (POPs) and endocrine disruptors which act through different xenosensors and accumulate in the liver. Our objective in this HEALS study was to investigate the effects of the mixture of these POPs on gene expression in a human-derived hepatocyte cell line, HepaRG. We found that, in spite of having lar

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Cernat, Alexandru, Constantin Pana, and Niculae Negurescu. "Aspects of in-Cylinder Mixture Formation Study for a Diesel Engine Fuelled with LPG by Diesel-Gas Method." Applied Mechanics and Materials 809-810 (November 2015): 1043–48. http://dx.doi.org/10.4028/www.scientific.net/amm.809-810.1043.

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The Liquid Petroleum Gas can be use for diesel engine fuelling with significant result in term of pollutant emissions improvement, with important reduction of nitrous oxides and smoke for a LPG dual fuelled diesel engine. Beside this the LPG fuelling affects the combustion process inside the cylinder and also the mixture forming. High degree of homogeneity of the air-LPG mixtures will accelerate the in-cylinder mixture forming between air-LPG and diesel fuel jets, since the LPG-air mixture combustion starts. The paper presents the results of a zero-dimensional, one-zone thermodynamic model dev

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Swarcewicz, Maria K., Justyna Sobczak, and Waldemar Paździoch. "Removal of carbamazepine from aqueous solution by adsorption on fly ash-amended soil." Water Science and Technology 67, no. 6 (2013): 1396–402. http://dx.doi.org/10.2166/wst.2013.662.

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Carbamazepine (CBZ), nonbiodegradable pharmaceutical residue, has become an emerging pollutant in several aquatic environments. The effectiveness of the mixture of soil and fly ash (FA) in adsorbing CBZ from aqueous solution has been studied as well as agitation time, FA content, initial CBZ concentration and desorption as a function of FA content. The adsorption kinetics fits a hyperbolic or pseudo-second-order model. The maximum adsorbed amounts for natural soil and a mixture of soil/FA ranged from 77 to 158 mg kg−1. Rate constants were considered relatively low (4.15–15.59 × 10−4 kg mg−1 mi

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Souza, Josiane Carneiro, Tiago Almeida Martins, Regiane Cristina De Oliveira, et al. "Performance and stability of femtosecond laser-irradiated Fe2O3 materials as photocatalysts for methylene blue dye discoloration." Ecl�tica Qu�mica Journal 47, no. 1SI (2022): 105–19. http://dx.doi.org/10.26850/1678-4618eqj.v47.1si.2022.p105-119.

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The disposal of substances pollutant, such as methylene blue dye (MB), into wastewater, arouses the interest of technologies to remove these pollutants. The discoloration of MB by photocatalysis and using femtosecond laser-irradiated Fe2O3 materials as photocatalysts proved to be a promising way to treat this pollutant. Here, Fe2O3 obtained by the conventional hydrothermal process and heat-treatment, subsequently femtosecond laser-irradiated treatment. Materials obtained with a mixture of irradiated ?-Fe2O3 and ?-Fe2O3 phases revealed lower crystallinity than irradiated ?-Fe2O3 samples. The ir

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Suresh, S., M. R. Sindhumol, M. Ramadurai, D. Kalvinithi, and M. Sangeetha. "Forecasting Particulate Matter Emissions Using Time Series Models." Nature Environment and Pollution Technology 22, no. 1 (2023): 221–28. http://dx.doi.org/10.46488/nept.2023.v22i01.020.

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Environmental pollution is a serious concern nowadays with its disastrous impact on living organisms. In several types of pollution, Air pollution takes on a crucial role by directly affecting the respiratory system and causing fatal diseases in humans. Air pollution is a mixture of gaseous and particulate matter interweaved by different sources and emanating into the atmosphere. In particular, particle pollutants are critical in growing air pollution in India’s main cities. Forecasting the particulate matter could mitigate the complications caused by it. The employment of a model to predict f

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Thives, Liseane Padilha, Enedir Ghisi, Gianfranco Longo, Gabriela Hammes, and Thiago Belotto. "Performance of Permeable Pavement to Filter Stormwater Runoff for Non-Potable Uses in Buildings." European Journal of Sustainable Development 12, no. 3 (2023): 80. http://dx.doi.org/10.14207/ejsd.2023.v12n3p80.

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Permeable pavement benefits, besides stormwater runoff reduction and groundwater recharge, include stormwater harvesting. As an alternative to water resources scarcity, stormwater that reaches a permeable pavement could be filtered by the same pavement and then used for non-potable purposes in buildings. This work aims to evaluate some types of permeable pavements regarding their performance to remove pollutants from stormwater and decrease runoff. Analyses of infiltration capacity and pollutant concentrations were performed in four permeable pavement models with different types of permeable s

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Puvvula, Jagadeesh, Jill A. Poole, Sandra Gonzalez, et al. "Joint association between ambient air pollutant mixture and pediatric asthma exacerbations." Environmental Epidemiology 6, no. 5 (2022): e225. http://dx.doi.org/10.1097/ee9.0000000000000225.

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Asemoloye, Michael Dare, and Mario Andrea Marchisio. "Synthetic Saccharomyces cerevisiae tolerate and degrade highly pollutant complex hydrocarbon mixture." Ecotoxicology and Environmental Safety 241 (August 2022): 113768. http://dx.doi.org/10.1016/j.ecoenv.2022.113768.

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Naseem, Khalida, Zahoor Hussain Farooqi, Muhammad Zia Ur Rehman, Muhammad Atiq Ur Rehman, and Maida Ghufran. "Microgels as efficient adsorbents for the removal of pollutants from aqueous medium." Reviews in Chemical Engineering 35, no. 2 (2019): 285–309. http://dx.doi.org/10.1515/revce-2017-0042.

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AbstractDue to their responsive behavior, high stability, and reusability, microgels have gained importance as adsorbents for the removal of aqueous pollutants such as heavy metals, nitroarenes, organic matter, and toxic dyes. However, there are few challenges that need to be addressed to make microgels as potential adsorbents for the removal of aqueous pollutants. This review article encircles the recent developments in the field of microgel usage as adsorbents for the extraction of aqueous pollutants. Many factors that influence the adsorption of pollutants such as pH, temperature of the med

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