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  1. No Access

    Article

    Pollen Dispersion and Deposition in Real-World Urban Settings: A Computational Fluid Dynamic Study

    Due to concern with the health and environmental impacts of allergic pine pollen on an urban community in Las Vegas, Nevada, a computation fluid dynamics (CFD) modeling framework was established for investigat...

    Prosun Roy, L.-W. Antony Chen, Yi-Tung Chen… in Aerosol Science and Engineering (2023)

  2. Article

    Open Access

    Lagged meteorological impacts on COVID-19 incidence among high-risk counties in the United States—a spatiotemporal analysis

    The associations between meteorological factors and coronavirus disease 2019 (COVID-19) have been discussed globally; however, because of short study periods, the lack of considering lagged effects, and differ...

    Lung-Chang Chien, L.-W. Antony Chen… in Journal of Exposure Science & Environmenta… (2022)

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  3. No Access

    Article

    Schoolchildren’s exposure to PM2.5: a student club–based air quality monitoring campaign using low-cost sensors

    To assess schoolchildren’s exposure to outdoor/indoor air pollution and identify those at a higher risk, it is desirable to conduct personal-level air quality monitoring. This paper documents a 2-month volunta...

    L.-W. Antony Chen, John O. Olawepo, Felicia Bonanno… in Air Quality, Atmosphere & Health (2020)

  4. No Access

    Article

    Measuring the Organic Carbon to Organic Matter Multiplier with Thermal/Optical Carbon-Quadrupole Mass Spectrometer Analyses

    A thermal/optical carbon analyzer (TOA) was adapted to direct thermally-evolved gases to an electron ionization quadrupole mass spectrometer (QMS), creating a TOA-QMS. While this approach produces spectra simi...

    Judith C. Chow, Gustavo M. Riggio, **aoliang Wang… in Aerosol Science and Engineering (2018)

  5. No Access

    Article

    Emissions and Partitioning of Intermediate-Volatility and Semi-Volatile Polar Organic Compounds (I/SV-POCs) During Laboratory Combustion of Boreal and Sub-Tropical Peat

    Burning of peatlands is estimated to be a large source of gas-phase non-methane organic compounds and organic aerosol to the atmosphere. However, little is known about the chemical characteristics of intermedi...

    Reddy L. N. Yatavelli, L.-W. Antony Chen, Joseph Knue… in Aerosol Science and Engineering (2017)

  6. Article

    Open Access

    Mass reconstruction methods for PM2.5: a review

    Major components of suspended particulate matter (PM) are inorganic ions, organic matter (OM), elemental carbon (EC), geological minerals, salt, non-mineral elements, and water. Since oxygen (O) and hydrogen (...

    Judith C. Chow, Douglas H. Lowenthal, L.-W. Antony Chen… in Air Quality, Atmosphere & Health (2015)

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  7. No Access

    Article

    Standards and Traceability for Air Quality Measurements: Flow Rates and Gaseous Pollutants

    Accurate and precise flow rate and gas concentration measurement standards are needed for comparable air quality measurements. Transfer standards are most often used for calibration, performance testing, and a...

    John G. Watson, Judith C. Chow, Richard J. Tropp, **ao Liang Wang, Steven D. Kohl… in MAPAN (2013)

  8. No Access

    Article

    Quality assurance and quality control for thermal/optical analysis of aerosol samples for organic and elemental carbon

    Accurate, precise, and valid organic and elemental carbon (OC and EC, respectively) measurements require more effort than the routine analysis of ambient aerosol and source samples. This paper documents the qu...

    Judith C. Chow, John G. Watson, Jerome Robles… in Analytical and Bioanalytical Chemistry (2011)