Showing 461 - 480 results of 665 for search '"Particulates"', query time: 0.10s Refine Results
  1. 461

    Associations between Ozone and Emphysema: A Systematic Review and Meta-analysis by Amja Manullang, Yueh-Lun Lee, Vincent Laiman, Jer-Hwa Chang, Hsiao-Chi Chuang

    Published 2022-05-01
    “…A random-effects model for the meta-analysis was implemented to summarize effect estimates of sufficiently comparable outcomes and pollutants (e.g.: particulate matter, nitrogen oxides and ozone), and the results were visualized in forest plots. …”
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  2. 462

    Dilution Ratio and Particle Loss Performance of a Newly Developed Ejector Porous Tube Diluter Compared to a Commercial Diluter by Dongho Shin, Hyunsoo Seo, Kee-Jung Hong, Hak-Joon Kim, Yong-Jin Kim, Bangwoo Han, Ga-Young Lee, Sung-Nam Chun, Jungho Hwang

    Published 2020-07-01
    “…Abstract In this study, a new ejector-porous tube diluter was developed to accurately in situ measure particulate matter at the source, e.g., emissions at coal-fired power plants, and its dilution ratio and particle loss were compared to those of a commercial model. …”
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  3. 463

    Effect of Cobalt Fillers on Polyurethane Segmentations Investigated by Synchrotron Small Angle X-Ray Scattering by Krit Koyvanich, Chitnarong Sirisathitkul, Supagorn Rugmai

    Published 2013-01-01
    “…Several models have successfully been proposed to visualize the configuration between the hard segment (HS) and soft segment (SS). For particulate PU composites, the arrangement of HS and SS is more complicated because the fillers tend to disrupt the chain formation and segmentation. …”
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  4. 464

    Potential Risks of PM2.5 in Urban and Suburban Environments: A Dual Perspective on Chemical Constituents and Pollution Sources by Huarui Ren, Xiongping Wu, Wenchang Zhao, Jinping Cheng

    Published 2024-03-01
    “…Abstract To investigate the chemical characteristics and source profiles of fine particulate matter (PM2.5) between suburban and urban areas, intensive observation and sample collection were conducted from November 2019 to January 2020 covering both clean and polluted days in Yulin, southwestern China. higher pollution levels were observed in urban areas during both clean and polluted days. …”
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  5. 465

    Source Apportionment of PM10 by Positive Matrix Factorization in Urban Area of Mumbai, India by Indrani Gupta, Abhaysinh Salunkhe, Rakesh Kumar

    Published 2012-01-01
    “…Particulate Matter (PM10) has been one of the main air pollutants exceeding the ambient standards in most of the major cities in India. …”
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  6. 466

    Traffic-related air pollutants (TRAP) in relation to respiratory symptoms among security guards by Muniandy Pravin, Abdul Aziz Nurhanim, Zainal Abidin Nur Balqishanis, Mohd Jamil Putri Anis, Ahnan Karthiga

    Published 2025-01-01
    “…Security guards are among the outdoor workers exposed to TRAP pollutants, mainly particulate matter 2.5 (PM2.5), which can lead to chronic respiratory diseases. …”
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  7. 467

    Design and implementation of a solar powered kit for measurement and logging of environmental parameters using the SEN55 sensor by J. Nchi Muhvu, M.D. Fendji, C.M. Ekengoue

    Published 2025-03-01
    “…The device measures particulate matter (PM1, PM2.5, PM4, PM10), humidity, temperature, volatile organic compounds (VOC), and nitrogen oxides (NOx), with data logged via an ATmega2560 microcontroller and displayed for real-time visualization. …”
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  8. 468

    Assessment of High-resolution Local Emissions and Land-use in Air Quality Forecasting at an Urban, Coastal, Desert Environment by Christos Fountoukis, Yasir Mohieldeen, Luis Pomares, Ivan Gladich, Azhar Siddique, Adam Skillern, Mohammed A. Ayoub

    Published 2022-04-01
    “…Abstract Fine particulate matter, ozone and nitrogen oxides are forecasted using a three-dimensional atmospheric meteorology-chemistry model (WRF-Chem) and a triple-nesting configuration over the Middle East and the Arabian Peninsula focusing on the hot desert climate of Qatar. …”
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  9. 469

    Concentrations of TSP-Bound Metals in Four Urban Residential Locations in Seoul, Korea by Hang Thi Nguyen, Chan Goo Park, Jin-A Kim, Je-Seung Lee, Jin-Hong Lee, Ki-Hyun Kim

    Published 2010-01-01
    “…Concentrations of 17 trace metals bound in total suspended particulate (TSP) were measured at four urban residential locations (Jong Ro [JR], Gwang Jin [GJ], Gang Seo [GS], and Yang Jae [YJ]) in Seoul, Korea from February to July 2009. …”
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  10. 470

    Optimization of WEDM process parameters for machining hybrid composites (LM6/B4C/Fly Ash) by Jayavelu Udaya Prakash, Charles Sarala Rubi, Sunder Jebarose Juliyana, Sachin Salunkhe, Sachin Salunkhe, H. B. Özerkan, Lenka Cepova

    Published 2025-01-01
    “…IntroductionWire-electric discharge machining (WEDM) possesses multiple benefits over traditional production approaches; it allows for the precise processing of complex and rigid particulate-reinforced composite materials. Aluminium alloys have found widespread applications in surgical components, shipbuilding, aircraft, automobiles, and inhaling gas cylinders for scuba diving, due to its good strength, and light weight properties.MethodsThe main aim of this investigation is to optimize different process variables for LM6/B4C/Fly ash particle reinforced hybrid composites using WEDM to attain performance metrics such as maximum material removal rate (MRR) and minimal surface roughness (SR). …”
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  11. 471

    Investigating Incursion of Transboundary Pollution into the Atmosphere of Dhaka, Bangladesh by Md. Masud Rana, Mastura Mahmud, Munjurul Hannan Khan, Bjarne Sivertsen, Norela Sulaiman

    Published 2016-01-01
    “…Concentrations of particulate matter (PM) in Dhaka, Bangladesh, during November 2013 to April 2014 were found 7-8 times higher than the World Health Organization (WHO) guideline value. …”
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  12. 472

    Associations Between Ambient PM<sub>2.5</sub> and Thyroid Hormones in Pregnant Persons in Puerto Rico by Trenton Honda, Trenton D. Henry, Laura Corlin, Kipruto Kirwa, Akram Alshawabkeh, Julia R. Varshavsky, Winston Kennedy, José F. Cordero, Carmen M. Velez Vega, Zaira Y. Rosario Pabon, John D. Meeker, Helen Suh

    Published 2025-01-01
    “…Introduction: This study investigates associations between fine particulate air pollution (PM<sub>2.5</sub>) exposure and thyroid hormone levels during pregnancy in Puerto Rican individuals, a vulnerable population facing socioeconomic and environmental disparities. …”
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  13. 473

    Determining the Factors Affecting Air Quality in Marmara, Turkey, and Assessing it Using Air Quality Indices by Ismet Yener, Kazım Onur Demirarslan

    Published 2022-07-01
    “…While anthropogenic variables mostly affected NOx (r=0.56 to 0.64) and O3 (r=-0.34 to 0.64), meteorological (r=-0.38 to 0.45) and spatial factors (r=-0.41 to -0.65) mostly affected particulate matter (PM2.5 and PM10). CO and SO2, on the other hand, were affected by all types of variables at varying directions and rates. …”
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  14. 474

    The Reproducibility of Indoor Air Pollution (IAP) Measurement: A Test Case for the Measurement of Key Air Pollutants from the Pan Frying of Fish Samples by Ki-Hyun Kim, Yong-Hyun Kim, Bo-Won Kim, Jeong-Hyeon Ahn, Min-Suk Bae, Richard J. C. Brown

    Published 2014-01-01
    “…A total of 11 experiments were carried out to measure a list of key variables commonly used to represent indoor air pollution (IAP) indicators such as particulate matter (PM: PM1, PM2.5, PM10, and TSP) and a set of individual volatile organic compounds (VOCs) with some odor markers. …”
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  15. 475

    Investigating Human Influence on Offshore Terrestrial Organic Carbon Trends in a High-Energy Delta: The Ayeyarwady Delta, Myanmar by Evan R. Flynn, Steven A. Kuehl

    Published 2025-01-01
    “…The continental margin is a major repository for organic carbon; however, anthropogenic alterations to global sediment and particulate terrestrial organic carbon (TerrOC) fluxes have reduced delivery by rivers and offshore burial in recent decades. …”
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  16. 476

    Examining air pollution dynamics in Ploiesti: a focus on vehicular emissions by Georgeta-Olguta Gavrila, Oana Cristina Parvulescu, Cristian Constantin, Valeriu Danciulescu, Simona Mariana Calinescu, Gheorghita Tanase, Valentin Stancu

    Published 2024-12-01
    “…The study analyses the seasonal variations in 2023 of air pollutants such as nitrogen dioxide (NO2), sulphur dioxide (SO2) and particulate matter (PM10), the impact of road traffic on air quality, as well as the monitoring measures according to the in force environmental legislation. …”
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  17. 477
  18. 478
  19. 479

    Atmospheric Polychlorinated Naphthalenes in a Tropical Megalopolis of Vietnam: Concentrations, Potential Sources, and Health Risk by Ngo Thi Thuan, Nguyen Duy Dat, Nguyen Minh Ngoc, Nhung Thi-Tuyet Hoang, To Thi Hien, Moo Been Chang

    Published 2024-06-01
    “…Gaseous PCNs dominated in both seasons, however, the contribution of particulate PCNs increased in the rainy season. Two typical homologue profiles were found in ambient air samples, including low-chlorinated PCNs (monoCNs > diCNs > triCNs) and medium-chlorinated PCNs (tetraCNs > triCNs). …”
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  20. 480

    Short-Term Changes in Fertility Attributes and Soil Organic Matter Caused by the Addition of EM Bokashis in Two Tropical Soils by Carlos Eduardo Pacheco Lima, Mariana Rodrigues Fontenelle, Luciana Rodrigues Borba Silva, Daiane Costa Soares, Antônio Williams Moita, Daniel Basílio Zandonadi, Ronessa Bartolomeu Souza, Carlos Alberto Lopes

    Published 2015-01-01
    “…The following fertility attributes were evaluated: pH, Ca2+, Mg2+, K+, Na+, P, SB, H + Al, CEC, and V. Particulate organic carbon (POC) and mineral-associated organic carbon (MOC) and total organic carbon (TOC) were also investigated. …”
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