Kazukiyo Kumagai

Stockton school-aged children’s exposures to polycyclic aromatic hydrocarbons (PAHs)

H W Sharma, Rosemary Castorina, Tanmayi Amanchi, Charles Perrino et autres

Human exposure to polycyclic aromatic hydrocarbons (PAH) is associated with significant adverse health outcomes, yet the magnitude and temporal trends in environmental concentrations are not well understood. Stockton, California, in the San Joaquin Valley, experiences some of the highest air pollution levels …

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Comparison of Field Approaches for Characterizing Classroom Ventilation Rates (VRs) and Equivalent VRs for PM

Wenhao Chen, David Moore, Rosemary Castorina, Mckenna Thompson et autres

Ventilating classrooms with clean outdoor air is essential for reducing exposure to indoor-generated pollutants and maintaining good indoor air quality (IAQ). Routine assessments of ventilation rates (VRs) are necessary to ensure that classroom ventilation systems are operating as designed and delivering adequate …

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Residential Volatile Organic Compound (VOC) Measurements in the San Joaquin Valley: Findings from the SPHERE Study

Rosemary Castorina, Karla Vargas, Flavia Wong, Z H Wang et autres

California's San Joaquin Valley, a major agricultural region surrounded by mountain ranges, experiences severe air pollution due to its basin-like topography, which traps emissions. The San Joaquin Valley Pollution and Health Environmental Research (SPHERE) Study is a collaborative, community-based project led by …

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Adverse cardiac effects of ultrasonic vaping devices despite lack of heating coil

Natasha Goyal, Maansa Kavuri, Ping Wang, Zhong-Min Wang et autres

INTRODUCTION: Ultrasonic vaping devices like SURGE are marketed as safer alternatives to conventional coil-based electronic cigarettes like JUUL due to their lower operating temperatures. However, their impact on cardiovascular health has not been fully characterized. METHODS: Sprague-Dawley rats were exposed daily for …

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A proposed methodology for developing indoor CO2 limits to verify target ventilation rates

Wenhao Chen, Andrew Persily, Kazukiyo Kumagai, Mark J. Mendell

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Analysis of impact of ventilation and air cleaning strategies on classroom PM2.5 and CO2 under normal and wildfire conditions – A CONTAM simulation study

Youngbo Won, Wenhao Chen, Zhong-Min Wang, Jeff Wagner et autres

Particulate matter (especially PM₂.₅) and carbon dioxide (CO₂) are key indicators of indoor air quality (IAQ). This study uses a multizone model (CONTAM) to simulate PM₂.₅ and CO₂ concentrations for representative ventilation scenarios with or without portable air cleaners (PACs) in a …

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Breaking Down Silos: A Multidisciplinary Approach to Mitigate Indoor Airborne Pathogen Transmission

Alex Zhu, William P. Bahnfleth, Richard Bruns, Giorgio Buonanno et autres

Addressing indoor air quality (IAQ) is essential for reducing respiratory disease risks. In this commentary, we highlight the need for increased connections between typically siloed engineering and health disciplines to tackle remaining IAQ knowledge gaps that, if closed, would enhance IAQ applications …

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Stockton school-aged children’s exposures to polycyclic aromatic hydrocarbons (PAHs)

H W Sharma, Rosemary Castorina, Tanmayi Amanchi, Charles Perrino et autres

Human exposure to polycyclic aromatic hydrocarbons (PAH) is associated with significant adverse health outcomes, yet the magnitude and temporal trends in environmental concentrations are not well understood. Stockton, California, in the San Joaquin Valley, experiences some of the highest air pollution levels …

us, jp (code pays fourni par la source)

Residential Volatile Organic Compound (VOC) Measurements in the San Joaquin Valley: Findings from the SPHERE Study

Rosemary Castorina, Karla Vargas, Flavia Wong, Zhong-Min Wang et autres

California's San Joaquin Valley, a major agricultural region surrounded by mountain ranges, experiences severe air pollution due to its basin-like topography, which traps emissions. The San Joaquin Valley Pollution and Health Environmental Research (SPHERE) Study is a collaborative, community-based project led by …

us, jp (code pays fourni par la source)

Comparison of Field Approaches for Characterizing Classroom Ventilation Rates (VRs) and Equivalent VRs for PM 2.5 – A Case Analysis

W T.. Chen, David Moore, Rosemary Castorina, Mckenna Thompson et autres

Ventilating classrooms with clean outdoor air is essential for reducing exposure to indoor-generated pollutants and maintaining good indoor air quality (IAQ). Routine assessments of ventilation rates (VRs) are necessary to ensure that classroom ventilation systems are operating as designed and delivering adequate …

us (code pays fourni par la source)

Paradigm shifts in indoor air quality: Insights from the 2025 Stanford forum on sustainable and healthy buildings

Milana Boukhman, L.D. Bates, Seema Bhangar, Wenhao Chen et autres

AI as a catalyst for synergistic gains in indoor air quality and energy efficiency

Milana Boukhman, William P. Bahnfleth, L.D. Bates, Seema Bhangar et autres