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Search Publications by: Michael Link (Fed)

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Displaying 1 - 13 of 13

VOC Injection Reveals Large Surface Reservoir Sizes in an Indoor Environment

September 22, 2025
Author(s)
Jie Yu, Pascale Lakey, Jenna Ditto, Han Huynh, Michael Link, Dustin Poppendieck, Stephen Zimmerman, Xing Wang, Delphine Farmer, Marina Vance, Jonathan Abbatt, Manabu Shiraiwa
The total partitioning capacity of indoor surface reservoirs determines the mechanism by which humans receive nondietary exposure to organic contaminants, via inhalation, dermal uptake, and dust ingestion. And yet, this capacity is largely unknown. Surface

Product ion distributions using H3O+ proton-transfer-reaction time-of-flight mass spectrometry (PTR-ToF-MS): mechanisms, transmission effects, and instrument-to-instrument variability

February 27, 2025
Author(s)
Michael Link, Megan Claflin, Christina Cecelski, Ayomide Akande, Delany Kilgour, Paul Heine, Matthew Coggon, Chelsea Stockwell, Andrew Jensen, Jie Yu, Han Huyhn, Jenna Ditto, Carnsten Warneke, William Dresser, Keighan Gemmell, Spiro Jorga, Rileigh Robertson, Joost de Gouw, Timothy Bertram, Jonathan Abbatt, Nadine Borduas-Dedekind, Dustin Poppendieck
Proton-transfer-reaction mass spectrometry (PTR-MS) using hydronium ion (H3O+) ionization is widely used for the measurement of volatile organic compounds (VOCs) both indoors and outdoors. H3O+ ionization, as well as the associated chemistry in an ion

VOC Emission Rates from an Indoor Surface Using a Flux Chamber and PTR-MS

December 1, 2024
Author(s)
Han Huynh, Jenna Ditto, Michael Link, Dustin Poppendieck, Delphine Farmer, Marina Vance, Jonathan Abbatt
Arising from the Chemical Assessment of Surfaces and Air (CASA) 2022 study at the NIST Net-Zero Energy Residential Test Facility (NZERTF), this paper presents the first evaluation of indoor surface emissions to a house measured with a surface flux chamber

Byproduct Formation from Portable Air Cleaners under Standard Test Conditions

July 8, 2024
Author(s)
Dustin Poppendieck, Michael Link, Rileigh Robertson
Use of air cleaners has increased due to the COVID-19 pandemic and wildfire frequency. A wide range of air cleaning technologies have been implemented in various products, although the potential of these technologies to form byproducts is largely unknown

The Chemical Assessment of Surfaces and Air (CASA) Study: Using chemical and physical perturbations in a test house to investigate indoor processes

June 21, 2024
Author(s)
Delphine K Farmer, Marina E Vance, Dustin Poppendieck, Jon Abbatt, Michael R Alves, Karen C Dannemiller, Cholaphan Deeleepojananan, Jenna Ditto, Brian P. Dougherty, Olivia R Farinas, Allen H Goldstein, Vicki H Grassian, Han Huynh, Deborah Kim, Jon C King, Jesse Kroll, Jienan Li, Michael Link, Liora Mael, Kathryn Mayer, Andrew B Martin, Glenn Morrison, Rachel O'Brien, Shubhransgshu Pandit, Barbara Turpin, Marc Webb, Jie Yu, Stephen Zimmerman
The Chemical Assessment of Surfaces and Air (CASA) study aimed to understand how chemicals transform in the indoor environment using perturbations (e.g., cooking, cleaning) or additions of indoor and outdoor pollutants in a well-controlled test house

Ozone generation and chemistry from 222 nm germicidal ultraviolet light in a fragrant restroom

May 20, 2024
Author(s)
Michael F. Link, Rileigh Robertson, Andrew Shore, Behrang Hamadani, Christina Cecelski, Dustin Poppendieck
Devices using 222 nm germicidal ultraviolet light (GUV222) have been marketed to reduce virus transmission indoors with low risk of occupant harm from direct UV exposure. GUV222 generates ozone, an indoor air pollutant and oxidant, under constrained

Jingle bells, what are those smells? Indoor VOC emissions from a live Christmas tree

March 1, 2024
Author(s)
Dustin Poppendieck, Rileigh Robertson, Michael F. Link
Every year in the United States conifers are purchased to serve as Christmas trees in homes where they emit volatile organic compounds (VOCs) to the indoor environment. Although many studies have measured the ecosystem-level emissions of VOCs from conifers

The persistence of smoke VOCs indoors: partitioning, surface cleaning, and air cleaning in a smoke-contaminated house

October 13, 2023
Author(s)
Jienan Li, Michael F. Link, Shubhrangshu Pandit, Marc Webb, Cholaphan Deeleepojananan, Kathryn Mayer, Lauren Garofalo, Katelyn Rediger, Dustin Poppendieck, Stephen Zimmerman, Marina Vance, Vicki Grassian, Glenn Morrison, Barbara Turpin, Delphine Farmer
Wildfires are increasing in frequency, raising concerns that smoke can permeate indoor environments and expose people to chemical air contaminants. To study smoke transformations in indoor environments and evaluate mitigation strategies, we added smoke to

Mechanical Ventilation in a Residential Building Brings Outdoor NOx Indoors with Limited Implications for VOC Oxidation from NO3 Radicals

October 10, 2023
Author(s)
Michael F. Link, Jienan Li, Jenna Ditto, Han Huynh, Jie Yu, Stephen Zimmerman, Andrew Shore, Katelyn Rediger, Jonathan Abbatt, Lauren Garofalo, Delphine Farmer, Dustin Poppendieck
Energy-efficient residential building standards require the use of mechanical ventilation systems that replace indoor air with air from the outdoors. Transient outdoor pollution events can be transported indoors via the mechanical ventilation system, and

Ozone Generation from a Germicidal Ultraviolet Lamp with Peak Emission at 222 nm

July 21, 2023
Author(s)
Michael F. Link, Andrew Shore, Behrang Hamadani, Dustin Poppendieck
Recent interest in commercial devices containing germicidal ultraviolet lamps with a peak emission wavelength at 222 nm (GUV222) has focused on mitigating virus transmission indoors while posing minimum risk to human tissue. However, 222 nm light can
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