10 results match your criteria Building And Environment[Journal]

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Assessing the risk of downwind spread of avian influenza virus via airborne particles from an urban wholesale poultry market.

Build Environ 2018 Jan 6;127:120-126. Epub 2017 Nov 6.

Department of Mechanical Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR, China.

Interspecies transmissions of avian influenza viruses (AIV) occur at the human-poultry interface, among which the live poultry markets (LPMs) are easily assessed by urban residents. Thousands of live poultry from different farms arrive daily at wholesale markets before being sold to retail markets. We assessed the risk of AIV downwind spread via airborne particles from a representative wholesale market in Guangzhou. Read More

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http://dx.doi.org/10.1016/j.buildenv.2017.10.037DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5822749PMC
January 2018
9 Reads

Lessons from in-home air filtration intervention trials to reduce urban ultrafine particle number concentrations.

Build Environ 2017 Dec 6;126:266-275. Epub 2017 Oct 6.

Department of Civil and Environmental Engineering, Tufts University School of Engineering, Tufts University, Medford, MA 02155.

Background: Exposure to airborne ultrafine particle (UFP; <100 nm in aerodynamic diameter) is an emerging public health problem. Nevertheless, the benefit of using high efficiency particulate arrestance (HEPA) filtration to reduce UFP concentrations in homes is not yet clear.

Methods: We conducted a randomized crossover study of HEPA filtration without a washout period in 23 homes of low-income Puerto Ricans in Boston and Chelsea, MA (USA). Read More

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http://dx.doi.org/10.1016/j.buildenv.2017.10.007DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5791918PMC
December 2017
1 Read

Weather Correlations to Calculate Infiltration Rates for U. S. Commercial Building Energy Models.

Build Environ 2018 Jan 28;127:47-57. Epub 2017 Oct 28.

National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899 USA.

As building envelope performance improves, a greater percentage of building energy loss will occur through envelope leakage. Although the energy impacts of infiltration on building energy use can be significant, current energy simulation software have limited ability to accurately account for envelope infiltration and the impacts of improved airtightness. This paper extends previous work by the National Institute of Standards and Technology that developed a set of EnergyPlus inputs for modeling infiltration in several commercial reference buildings using Chicago weather. Read More

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http://dx.doi.org/10.1016/j.buildenv.2017.10.029DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5766009PMC
January 2018
1 Read

Ten Questions Concerning the Aerosolization and Transmission of Legionella in the Built Environment.

Build Environ 2017 Oct 13;123:684-695. Epub 2017 Jun 13.

Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA, 24061, USA.

is a genus of pathogenic Gram-negative bacteria responsible for a serious disease known as legionellosis, which is transmitted via inhalation of this pathogen in aerosol form. There are two forms of legionellosis: Legionnaires' disease, which causes pneumonia-like symptoms, and Pontiac fever, which causes influenza-like symptoms. can be aerosolized from various water sources in the built environment including showers, faucets, hot tubs/swimming pools, cooling towers, and fountains. Read More

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http://dx.doi.org/10.1016/j.buildenv.2017.06.024DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5665586PMC
October 2017
24 Reads

The Impact of Working in a Green Certified Building on Cognitive Function and Health.

Build Environ 2017 Mar 25;114:178-186. Epub 2016 Nov 25.

Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.

Thirty years of public health research have demonstrated that improved indoor environmental quality is associated with better health outcomes. Recent research has demonstrated an impact of the indoor environment on cognitive function. We recruited 109 participants from 10 high-performing buildings (i. Read More

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http://dx.doi.org/10.1016/j.buildenv.2016.11.041DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5543984PMC
March 2017
11 Reads

Impacts of Changes of Indoor Air Pressure and Air Exchange Rate in Vapor Intrusion Scenarios.

Build Environ 2016 Feb 2;96:178-187. Epub 2015 Dec 2.

School of Engineering, Brown University, Providence RI 02912, USA.

There has, in recent years, been increasing interest in understanding the transport processes of relevance in vapor intrusion of volatile organic compounds (VOCs) into buildings on contaminated sites. These studies have included fate and transport modeling. Most such models have simplified the prediction of indoor air contaminant vapor concentrations by employing a steady state assumption, which often results in difficulties in reconciling these results with field measurements. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03601323153017
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http://dx.doi.org/10.1016/j.buildenv.2015.11.015DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5228218PMC
February 2016
1 Read

Environmental Perceptions and Health before and after Relocation to a Green Building.

Build Environ 2016 Aug 9;104:138-144. Epub 2016 May 9.

Center for Health and the Global Environment, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.

Green buildings are designed to have low environmental impacts and improved occupant health and well-being. Improvements to the built environment including ventilation, lighting, and materials have resulted in improved indoor environmental quality (IEQ) in green buildings, but the evidence around occupant health is currently centered around environmental perceptions and self-reported health. To investigate the objective impact of green buildings on health, we tracked IEQ, self-reported health, and heart rate in 30 participants from green and conventional buildings for two weeks. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5047435PMC
http://dx.doi.org/10.1016/j.buildenv.2016.05.011DOI Listing
August 2016
6 Reads

Numerical Modeling of Indoor Environment with a Ceiling Fan and an Upper-Room Ultraviolet Germicidal Irradiation System.

Build Environ 2014 Feb;72:116-124

Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, USA ; Brigham and Women's Hospital, Boston, Massachusetts, USA.

This study proposes a numerical modeling method for the indoor environment with ceiling fans and upper-room ultraviolet germicidal irradiation (UR-UVGI) fixtures. The numerical modeling deployed steady-state Computational Fluid Dynamics (CFD) with a rotating reference frame to simulate the rotation of fan blades. CFD was validated with experimental data of velocity field and fraction of microorganism remaining at the exhaust diffuser. Read More

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http://dx.doi.org/10.1016/j.buildenv.2013.10.019DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3888502PMC
February 2014

Simulating the effect of slab features on vapor intrusion of crack entry.

Build Environ 2013 Jan;59:417-425

School of Engineering, Brown University, Providence RI02912.

In vapor intrusion screening models, a most widely employed assumption in simulating the entry of contaminant into a building is that of a crack in the building foundation slab. Some modelers employed a perimeter crack hypothesis while others chose not to identify the crack type. However, few studies have systematically investigated the influence on vapor intrusion predictions of slab crack features, such as the shape and distribution of slab cracks and related to this overall building foundation footprint size. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03601323120024
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http://dx.doi.org/10.1016/j.buildenv.2012.09.007DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3555425PMC
January 2013
7 Reads

Particle Concentrations and Effectiveness of Free-Standing Air Filters in Bedrooms of Children with Asthma in Detroit, Michigan.

Build Environ 2011 Oct;46(11):2303-2313

Donghua University, School of Environmental Science and Engineering, Shanghai 201620, China.

Asthma can be exacerbated by environmental factors including airborne particulate matter (PM) and environmental tobacco smoke (ETS). We report on a study designed to characterize PM levels and the effectiveness of filters on pollutant exposures of children with asthma. 126 households with an asthmatic child in Detroit, Michigan, were recruited and randomized into control or treatment groups. Read More

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http://dx.doi.org/10.1016/j.buildenv.2011.05.012DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3161201PMC
October 2011
1 Read
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