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Buildings & Construction

Indoor air quality

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  • Published Date
Displaying 276 - 300 of 431

Effect of Air Infiltration and Ventilation

November 17, 2009
Author(s)
Andrew K. Persily, Steven J. Emmerich
This chapter discusses the role of air infiltration and ventilation in building moisture transport. While water vapor diffusion can be a very important moisture transport mechanism, as discussed in other chapters, bulk air movement via infiltration and

Standards Development for Gas Phase Air Cleaning Equipment in Buildings

November 3, 2008
Author(s)
Andrew K. Persily, Cynthia H. Reed, Stephanie S. Watson, Nicos Martys, Edward J. Garboczi, Heather Davis
Concerns about building security have resulted in increasing interest in gas phase air cleaning (GPAC) and the need for standard methods to determine the effectiveness of these systems. Similarly, the ability to predict their installed performance, based

Contribution of Gas and Electric Stoves to Residential Ultrafine Particle Concentrations between 2 nm and 64 nm: Size Distributions and Emission and Coagulation Rates

October 29, 2008
Author(s)
Lance L. Wallace, Wang Fang, Cynthia H. Reed, Andrew K. Persily
Three indoor sources of ultrafine particles (a gas stove, an electric stove, and an electric toaster oven) have been studied in an instrumented test house on the campus of the National Institute of Standards and Technology (NIST). Previous studies have

Reanalysis of BASE Ventilation Data

October 10, 2008
Author(s)
Andrew K. Persily
In 2004, the National Institute of Standards and Technology (NIST) published an analysis of the ventilation data collected as part of the U.S. EPA Building Assessment Survey and Evaluation (BASE) study [1]. That analysis provided a unique dataset of office

Assessing the Uncertainty Associated with Product Emission Measurements

August 17, 2008
Author(s)
Cynthia H. Reed, Steven J. Nabinger, Andrew K. Persily
Volatile organic compounds (VOCs) emitted by building materials and products have been shown to significantly impact human health and comfort. As a result, the market for low emitting building materials and products is growing rapidly. However, existing

Development of a Design Guide to Improve Building IAQ

August 17, 2008
Author(s)
Andrew K. Persily, Martha Hewett, Jude Anders, Lynn Bellenger, Ronald Burton, John Girman, Eli HowardI, Eric Werling
Building owners and developers, and the designers and contractors they employ, are faced with a variety of requirements related to building function, regulations, and environmental impacts. These professionals often address indoor air quality through

Ventilation Measurements in Selected IAQ Studies

August 17, 2008
Author(s)
Andrew K. Persily
Building and space ventilation rates are primary determinants of indoor pollutant levels and occupant exposures, and the impacts of ventilation on health and comfort have long been recognized in ventilation standards and regulations. Despite the importance

A Collection of Homes to Represent the U.S. Housing Stock

August 1, 2008
Author(s)
Andrew K. Persily, Amy Musser, Dennis D. Leber
In order to allow nationwide analysis of ventilation and indoor air quality issues in residential buildings, a set of homes has been defined to represent the housing stock of the United States. This collection of dwellings is based on two residential

Consideration and Influence of Complexed forms of Mercury Species on the reactivity Patterns Determined by Speciated Isotope Dilution Model Approaches: A Case for Natural Biological Reference Materials

June 1, 2008
Author(s)
David Point, J. I. Garcia Alonso, William C. Davis, Steven J. Christopher, Aurore Guichard, O.F. X. Donard, Paul R. Becker, Gregory C. Turk, Stephen A. Wise
The origins and the processes driving the inadvertent transformations of inorganic mercury (iHg) and methylmercury (MeHg) in cryogenically stored and homogenized fresh-frozen versus freeze-dried biological Standard Reference Materials (SRM) were

Airtightness and Ventilation in a Manufactured House: Pre-Retrofit Results

May 1, 2008
Author(s)
Steven J. Nabinger, Andrew K. Persily
A retrofit study is being conducted to investigate the airtightness, ventilation and energy impacts of tightening the exterior envelope and the heating and air conditioning system ductwork of a double section manufactured house. etc.

CONTAM 2.4 User Guide and Program Documentation

October 3, 2006
Author(s)
George Walton, William S. Dols
This manual describes the computer program CONTAM version 2.3 developed by NIST. CONTAM is a multizone indoor air quality and ventilation analysis program designed to help you determine: airflows and pressures infiltration, exfiltration, and room-to-room

Ionizing Radiation-Induced Destruction of Benzene and Dienes in Aqueous Media

March 28, 2006
Author(s)
M I. Al-Sheikhly, Dianne L. Poster, Jung-Chul An, Pedatsur Neta, Joseph Silverman, Robert E. Huie
Pulse radiolysis with spectrophotometric and conductometric detection was utilized to study the formation and reactions of radicals from benzene and dienes in aqueous solutions. The benzene OH adduct, C6H6OH, reacts with O2 (k = 3 x 108 L mol-1 s-1) in a

Determination of Polybrominated Diphenyl Ethers in Indoor Dust Standard Reference Materials

February 1, 2006
Author(s)
H M. Stapleton, T. Harner, M. Shoeib, Jennifer M. Lynch, Michele M. Schantz, Stefan D. Leigh, Stephen A. Wise
Polybrominated diphenyl ethers (PBDEs) have been measured for the first time in three different indoor dust Standard Reference Materials (SRMs) prepared by the National Institute of Standards and Technology (NIST). Two of these SRMs (2583 and 2584) have
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