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Displaying 51 - 75 of 444

Estimating real-time infiltration for use in residential ventilation control

September 19, 2019
Lisa C. Ng, Stephen M. Zimmerman, Jeremy Good, Brian Toll, Steven J. Emmerich, Andrew K. Persily
Minimum outdoor air ventilation rates specified in standards such as ASHRAE Standard 62.2 are generally based on envelope airtightness, building floor area, geographical location, and number of occupants. ASHRAE Standard 62.2 allows for a constant

AMAP Review: Biological Effects from Contaminants on Arctic Wildlife and Fish

August 13, 2019
Rune Dietz, Robert Letcher, Colleen E. Bryan Sallee, John Kucklick, Stacy Schuur, Jean-Pierre Desforges, Igor Eulaers, Bjorn Munro Jenssen, Melissa McKinney, Christian Sonne, Niladri Basu, Simon Wilson, Sara Pedro, Jenny Bytingsvik, Garry Stenson, Anuschka Polder, Joshua T. Ackerman, Collin A. Eagles-Smith, Mark P. Herzog, Alex Hartman, Sarah Peterson, Allyson Jackson, Birgit Braune, Derek Muir, Frank Riget, Milton Levin, Anders Bignert, Maria Dam, Marlene Evans, Magali Houde, Katrin S. Hoydal
Since the last Arctic Monitoring and Assessment Programme (AMAP) effort to review biological effects of the exposure to persistent organic pollutants (POPs) classified as organohalogen compounds (OHCs) in Arctic biota there has been a considerable number

Towards Sustainable Environmental Quality: Priority Research Questions for North America

July 30, 2019
Anne Fairbrother, Derek Muir, Keith Solomon, Gerald Ankley, Murray Rudd, Alistair Boxall, William Adams, Jennifer Apell, Bonnie Blalock, Sarah Bowman, Linda Campbell, George Cobb, Kristin Connors, David Dreier, Marlene Evans, Carol Henry, Robert Hoke, Magali Houde, Stephen Klaine, Rebecca Klaper, Sigrun Kullik, Roman Lanno, Charles Meyer, Elias Oziolor, Mary Ann Ottinger, Elijah Petersen, Helen Poynton, Pamela Rice, Gabriela Rodriguez-Fuentes, Alan Samel, Joseph Shaw, Jeffrey Steevens, Tim Verslycke, Scott Weir, Peter Wilson, Bryan Brooks
Anticipating, identifying and prioritizing strategic needs represent essential activities by research organizations. When these pursuits engage globally important environment and health goals, including the United Nations Sustainable Development Goals

Estimating real-time infiltration for use in residential ventilation control

June 18, 2019
Lisa Ng, Stephen M. Zimmerman, Jeremy Good, Brian Tool, Steven Emmerich, Andrew Persily
Minimum outdoor air ventilation rates specified in standards such as ASHRAE Standard 62.2 are generally based on envelope airtightness, building floor area, geographical location, and number of occupants. To meet ventilation requirements in practice

Siting background towers to characterize incoming air for urban GHG estimation: a case study in the Washington DC/Baltimore Area

June 5, 2019
Kimberly L. Mueller, Vineet Yadav, Israel Lopez Coto, Anna Karion, Sharon M. Gourdji, Cory R. Martin, James R. Whetstone
There is increased interest in understanding urban greenhouse gas (GHG) emissions. However, to accurately estimate city emissions, the influence of exurban fluxes must first be removed from urban greenhouse gas (GHG) observations. This is especially true

Examining the Relationships Between Blubber Steroid Hormone and Persistent Organic Pollutant Measurements in Common Bottlenose Dolphins

March 24, 2019
Thomas M. Galligan, Brian C. Balmer, Lori Schwacke, Jennie L. Bolton, Brian M. Quigley, Patricia Rosel, Gina M. Ylitalo, Ashley Russell
In this study, we use remotely collected blubber samples from common bottlenose dolphins (Tursiops truncatus) inhabiting the waters near a U.S. Environmental Protection Agency Superfund site with high local DDx concentrations, to study the impacts of DDx

Lipidomics for wildlife disease etiology and biomarker discovery: a case study of pansteatitis outbreak in South Africa

March 5, 2019
John Bowden, Jeremy P. Koelmel, Candice Z. Ulmer, Susan Fogelson, Hannes Botha, Christina M. Jones, Jackie T. Bangma, Theresa M. Cantu, Matthew P. Guillette, Wilmien Luus-Powell, Joseph Sara, Willem J. Smit, Korin Albert, Harmony Miller, Berkley Olsen, Jason A. Cochran, Timothy J. Garrett, Richard A. Yost
Lipidomics is a promising tool to determine biomarkers and elucidate mechanisms associated with anthropogenic-induced stress in wildlife. Therefore, we examine the application of lipidomics for in situ studies on Mozambique tilapia (Oreochromis mossambicus

Hydrofluorocarbons (HFCs)

January 1, 2019
Vladimir L. Orkin, Stephen A. Montzka, Guus J. Velders, Paul B. Krummel, Malte Meinshausen, J. Muhle, Sunyoung Park

Electronic Structure, Pore Size Distribution, and Sorption Characterization of an unusual MOF, {[Ni(dpbz)][Ni(CN)4]}n, dpbz=1,4-bis(4-pyridyl)benzene

September 26, 2018
Winnie K. Wong-Ng, Izaak Williamson, Daniel W. Siderius, Jeffrey T. Culp, Yu-Sheng Chen, Lan Li, Matthew Lawson
The monoclinic (Ni(L)[Ni(CN)4] (L= 1,4-Bis(4-pyridyl) benzene) compound (nick-name Ni-dpbz) is a flexible metal organic framework (MOF) which assumes a pillared structure with layers defined by 2D Ni[Ni(CN)4]n nets and dpbz ligands as pillars. The

Evaluation of Formaldehyde Reference Material for Chamber Emission Testing

July 22, 2018
Dustin G. Poppendieck, Na Li, Wenhao Chen
Formaldehyde reference materials are being developed by the National Institute of Standards and Technology (NIST) for use in regulatory emission testing certification programs. Emission rates for a prototype formaldehyde reference material were determined

Simmering Sauces! Elevated Formaldehyde Concentrations from Gas Stove Burners

July 22, 2018
Dustin G. Poppendieck, Mengyan Gong
Formaldehyde is listed as a human carcinogen, and can be formed as a primary by-product during combustion processes. Past studies have not detected elevated formaldehyde concentrations from gas stoves, perhaps due to the time averaging nature of previous

Kinetic Mechanism of 2,3,3,3-Tetrafluoropropene (HFO-1234yf) Combustion

July 16, 2018
Valeri I. Babushok, Gregory T. Linteris
A kinetic model for 2,3,3,3-tetrafluoropropene (HFO-1234yf) high temperature oxidation and combustion is proposed. It is combined with the GRI-Mech-3.0 model, with the previously developed model for 2-bromo-3,3,3-trifluoropropene (2-BTP), and with the NIST

Materials and Processes for CO2 Capture, Conversion and Sequestration

May 26, 2018
Winnie K. Wong-Ng, Lan Li, Lawrence P. Cook, Kevin Huang
The book “Materials and Processes for CO2 Capture, Conversion and Sequestration (CCS)” which will be published by John Wiley & Sons, Inc., is a result of the symposium of the same title which took place in 2014 during the MS&T (Materials Science and

Synthesis and Synchrotron X-ray characterization of two 2D Hoffman related compounds [Ni(p-Xylylenediamine)nNi(CN)4] and [Ni(p-tetrafluoroxylylenediamine)nNi(CN)4]

April 24, 2018
Winnie K. Wong-Ng, Jeffrey T. Culp, Daniel W. Siderius, Yu-Sheng Chen
Synchrotron X-ray single crystal structure studies of two closed 2D Hofmann-type related compounds, [Ni(p-Xylyenediamine)n-tetracyanonickelate] (abbreviated as Ni-pXdam) and [Ni(tetrafluoro-p-Xylyenediamine)n-tetracyanonickelate] (abbreviated as Ni-pXdamF4

Measured In-situ Mass Absorption Spectra for Nine Forms of Highly-absorbing Carbonaceous Aerosol

April 23, 2018
Christopher D. Zangmeister, Rian You, Elizabeth M. Lunny, Arne Jacobson, Mitchio Okumura, Michael R. Zachariah, James G. Radney
Mass absorption coefficient spectra were measured between λ = 500 nm and 840 nm for nine forms of highly-absorbing carbonaceous aerosol: five samples generated from gas-, liquid- and solid- fueled flames; spark-discharge fullerene soot; graphene and
Displaying 51 - 75 of 444