Richard Sextro

Richard Sextro

Contact Information

Phone: 510-495-4570

Awards

Federal Laboratory Consortium Award for Excellence in Technology Transfer -  May 5th 2004

For the entry "Minimizing Casualties from a Chem/Bio Attack: Preparation, Training, and Response Resources."

Publications

2022

Protecting building occupants against the inhalation of outdoor-origin aerosols

Authors: Dillon, Michael B; Richard G Sextro, and William W Delp.
01/2022

2008

Ozone levels in passenger cabins of commercial aircraft on North American and transoceanic routes

Authors: Bhangar, Seema; Shannon Cowlin; Brett C Singer; Richard G Sextro, and William W Nazaroff.

2007

Predicting Size-Resolved Particle Behavior in Multizone Buildings

Authors: Sohn, Michael D; Michael G Apte; Richard G Sextro, and Alvin C.K Lai.

Sorption of organic gases in residential rooms

Authors: Singer, Brett C; Alfred T Hodgson; Toshifumi Hotchi; Katherine Y Ming; Richard G Sextro; Emily E Wood, and Nancy J Brown.

2006

Tracer Gas Transport under Mixed Convection Conditions in an Experimental Atrium: Comparison Between Experiments and CFD Predictions

Authors: Jayaraman, Buvaneswari; Elizabeth U Finlayson; Michael D Sohn; Tracy L Thatcher; Phillip N Price; Emily E Wood; Richard G Sextro, and Ashok J Gadgil.

What is an Effective Air Cleaning Device? A Review

Authors: Shaughnessy, Richard J, and Richard G Sextro.

2005

Assessing Sheltering-In-Place Responses to Outdoor Toxic Releases

Authors: Sohn, Michael D; Richard G Sextro, and David M Lorenzetti.
09/2005

Aerosol physics and chemistry: indoor perspective, Chapter 10

Authors: Gundel, Lara A; Richard G Sextro; Lev S Ruzer, and Naomi H Harley.

Comparison between experiments and CFD predictions of mixed convection flows in an atrium

Authors: Jayaraman, Buvaneswari; Elizabeth U Finlayson; Emily E Wood; Tracy L Thatcher; Phillip N Price; Richard G Sextro, and Ashok J Gadgil.

Indoor sorption of surrogates for sarin and related nerve agents

Authors: Singer, Brett C; Alfred T Hodgson; Hugo Destaillats; Toshifumi Hotchi; Kenneth L Revzan, and Richard G Sextro.

Simplifying the assessment of building vulnerability to chemical, biological and radiological releases

Authors: Thatcher, Tracy L; Emily E Wood; Eve Edelson, and Richard G Sextro.

Sorption of organic gases in residential bedrooms and bathrooms

Authors: Singer, Brett C; Alfred T Hodgson; Toshifumi Hotchi; Katherine Y Ming; Richard G Sextro; Emily E Wood, and Nancy J Brown.

2004

Indoor measurements of environmental tobacco smoke

Authors: Apte, Michael G; Lara A Gundel; S. S Katharine Hammond; Raymond L Dod; Marion L Russell; Brett C Singer; Michael D Sohn; Douglas P Sullivan; Gee-Minn Chang, and Richard G Sextro.

Joint Urban 2003: Indoor Measurements Final Data Report

Authors: Black, Douglas R; Tracy L Thatcher; Richard G Sextro; William W Delp; Sheng-Chieh Chang; Emily E Wood; Jean C Deputy; Toshifumi Hotchi; Mark R Sippola, and Douglas P Sullivan.

Pollutant Dispersion in a Large Indoor Space Part 2 -- Computational Fluid Dyamics (CF) Predictions and Comparisons with a Model Experiment for Isothermal Flow

Authors: Finlayson, Elizabeth U; Ashok J Gadgil; Tracy L Thatcher, and Richard G Sextro.

2003

Determining Size-Specific Emission Factors for Environmental Tobacco Smoke Particles

Authors: Klepeis, Neil E; Michael G Apte; Lara A Gundel; Richard G Sextro, and William W Nazaroff.
10/2003

A concentration rebound method for measuring particle penetration and deposition in the indoor environment

Authors: Thatcher, Tracy L; Melissa M Lunden; Kenneth L Revzan; Richard G Sextro, and Nancy J Brown.

Data summary report of commercial building experiments in Salt Lake City, UT from May 17 to June 10, 2002

Authors: Black, Douglas R; Tracy L Thatcher; William W Delp; Elisabeth A Derby; Sheng-Chieh Chang, and Richard G Sextro.

Pollutant Dispersion in a Large Indoor Space: Part 1 -- Scaled experiments using a water-filled model with occupants and furniture

Authors: Thatcher, Tracy L; David J Wilson; Emily E Wood; Mathias J Craig, and Richard G Sextro.

Protecting Buildings From a Biological or Chemical Attack: actions to take before or during a release

Authors: Price, Phillip N; Michael D Sohn; Ashok J Gadgil; William W Delp; David M Lorenzetti; Elizabeth U Finlayson; Tracy L Thatcher; Richard G Sextro; Elisabeth A Derby, and Sondra A Jarvis.

Responding to Sudden Pollutant Releases in Office Buildings: 1. Framework and Analysis Tools

Authors: Sohn, Michael D; Richard G Sextro; Ashok J Gadgil, and Joan M Daisey.

2002

Effects of Room Furnishings and Air Speed on Particle Deposition Rates Indoors

Authors: Thatcher, Tracy L; Alvin C.K Lai; Rosa Moreno-Jackson; Richard G Sextro, and William W Nazaroff.
04/2002

A pilot study of the behavior of gas- and particle-phase ETS tracers in residences

Authors: Apte, Michael G; Lara A Gundel; Raymond L Dod; Gee-Minn Chang, and Richard G Sextro.

Advice for first responders to a building during a chemical or biological attack

Authors: Price, Phillip N; William W Delp; Michael D Sohn; Tracy L Thatcher; David M Lorenzetti; Richard G Sextro; Ashok J Gadgil; Elisabeth A Derby, and Sondra A Jarvis.

Building a predictive model of indoor concentrations of outdoor PM-2.5 for a residential research house in Clovis, California

Authors: Fischer, Marc L; Melissa M Lunden; Tracy L Thatcher; David Littlejohn; Thomas W Kirchstetter; Susanne V Hering; Richard G Sextro, and Nancy J Brown.

Experimental investigation of the effect of changes in house environment on the indoor concentration of particles of outdoor origin within a residence

Authors: Thatcher, Tracy L; Melissa M Lunden; Kenneth L Revzan; Richard G Sextro, and Nancy J Brown.

Factors affecting the concentration of outdoor particles indoors: existing data and data needs

Authors: McKone, Thomas E; Tracy L Thatcher; William J Fisk; Richard G Sextro; Michael D Sohn; William W Delp, and William J Riley.

Indoor, Outdoor And Regional Profiles Of Pm2.5 Sulfate, Nitrate And Carbon

Authors: Hering, Susanne V; Melissa M Lunden; Thomas W Kirchstetter; Tracy L Thatcher; Kenneth L Revzan; Richard G Sextro; Nancy J Brown; John G Watson, and Judith C Chow.

Modeling the spread of anthrax in buildings

Authors: Sextro, Richard G; David M Lorenzetti; Michael D Sohn, and Tracy L Thatcher.

Predicting Indoor PM2.5 Of Outdoor Origin: Testing a transient size-resolved Model Using Intensive Measurements From A Residence

Authors: Fischer, Marc L; Melissa M Lunden; Tracy L Thatcher; Richard G Sextro, and Nancy J Brown.

Rapidly Locating Sources And Predicting Contaminant Dispersion In Buildings

Authors: Sohn, Michael D; Pamela Reynolds; Ashok J Gadgil, and Richard G Sextro.

The effect of penetration factor, deposition, and environmental factors on the indoor concentration of pm2.5 sulfate, nitrate, and carbon

Authors: Thatcher, Tracy L; Melissa M Lunden; Richard G Sextro; Susanne V Hering, and Nancy J Brown.

The Transformation Of Outdoor Ammonium Nitrate Aerosols In The Indoor Environment

Authors: Lunden, Melissa M; Tracy L Thatcher; David Littlejohn; Marc L Fischer; Susanne V Hering; Richard G Sextro, and Nancy J Brown.

2001

Factors Affecting the Concentration of Outdoor Particles Indoors (COPI): Identification of Data Needs and Existing Data

Authors: Thatcher, Tracy L; Thomas E McKone; William J Fisk; Michael D Sohn; William W Delp; William J Riley, and Richard G Sextro.
12/2001

An algorithm for real-time tomography of gas concentrations, using prior information about spatial derivatives

Authors: Price, Phillip N; Marc L Fischer; Ashok J Gadgil, and Richard G Sextro.
06/2001

Rapid Measurement and Mapping of Tracer Gas Concentrations in a Large Indoor Space

Authors: Fischer, Marc L; Phillip N Price; Tracy L Thatcher; Carrie A Schwalbe; Mathias J Craig; Emily E Wood; Richard G Sextro, and Ashok J Gadgil.

2000

Experimental Determination Of Size Resolved Particle Deposition Rates As A Function Of Room Furnishing And Room Air Velocity, Section 11PC

Authors: Thatcher, Tracy L; Alvin C.K Lai; Rosa Moreno-Jackson; Richard G Sextro, and William W Nazaroff.
11/2000

Pollutant transport and dispersion in large indoor spaces: A status report for the large space effort of the Interiors Project

Authors: Gadgil, Ashok J; Elizabeth U Finlayson; Marc L Fischer; Phillip N Price; Tracy L Thatcher; Mathias J Craig; Ki-Hyuck Hong; J Housman; Carrie A Schwalbe; David J Wilson; Emily E Wood, and Richard G Sextro.
06/2000

Health Risks Due to Radon in Drinking Water

Authors: Hopke, Philip K; Thomas B Borak; John Doull; James E Cleaver; Keith F Eckerman; Linda C.S Gundersen; Naomi H Harley; C. C Thomas Hess; Nancy E Kinner; Kenneth J Kopecky; Thomas E McKone; Richard G Sextro, and Steven L Simon.
03/2000

A Concentration Rebound Method For Measuring Particle Penetration Into A Residence, Section 12A1

Authors: Thatcher, Tracy L; Melissa M Lunden; Marc L Fischer; James D Fine; Thomas W Kirchstetter; Susanne V Hering; Richard G Sextro, and Nancy J Brown.

A novel technique to measure the magnitude and direction of flow in a tube

Authors: Robinson, Allen L, and Richard G Sextro.

Algorithm for rapid tomography of gas concentrations

Authors: Price, Phillip N; Marc L Fischer; Ashok J Gadgil, and Richard G Sextro.

Database of Physical, Chemical, and Toxicological Properties of Chemical and Biological (CB) Warfare Agents for Modeling Airborne Dispersion In and Around Buildings

Authors: Thatcher, Tracy L; Richard G Sextro, and Don Ermak.

1999

Characterizing ETS Emissions from Cigars: Chamber Measurements of Nicotine, Particle Mass, and Particle Size

Authors: Klepeis, Neil E; Michael G Apte; Lara A Gundel; William W Nazaroff, and Richard G Sextro.

Determining transfer factors for outdoor aerosol plumes entering buildings

Authors: Thatcher, Tracy L; William W Nazaroff, and Richard G Sextro.

Indoor Transport of ETS Particles And Tracers

Authors: Apte, Michael G; Lara A Gundel; Brett C Singer; Douglas P Sullivan, and Richard G Sextro.

Measuring dispersion of gases in a large scale indoor environment using an open path tunable diode laser

Authors: Thatcher, Tracy L; Marc L Fischer; Phillip N Price; William J Fisk; Ashok J Gadgil, and Richard G Sextro.

Modeling aerosol behavior in multizone indoor environments

Authors: Sohn, Michael D; Alvin C.K Lai; Brian V Smith; Richard G Sextro; Helmut E Feustel, and William W Nazaroff.

Radon entry into houses: The importance of scale-dependent permeability

Authors: Garbesi, Karina; Allen L Robinson; Richard G Sextro, and William W Nazaroff.

1997

Dynamic Behavior of Semivolatile Organic Compounds in Indoor Air. 1. Nicotine in a Stainless Steel Chamber

Authors: Van Loy, Michael D; Victor C Lee; Lara A Gundel; Joan M Daisey; Richard G Sextro, and William W Nazaroff.
08/1997

Assessment of Very Low Aerosol Concentrations by Measuring the Unattached Fraction of 218Po

Authors: Ruzer, Lev S, and Richard G Sextro.

Measurement of Radon Decay Products in Air by Alpha- and Beta-Spectrometry

Authors: Ruzer, Lev S, and Richard G Sextro.

Radon Entry into Buildings Driven by Atmospheric Pressure Fluctuations

Authors: Robinson, Allen L, and Richard G Sextro.

Soil-Gas Entry Into Houses Driven By Atmospheric Pressure Fluctuations -- the Influence of Soil Properties

Authors: Robinson, Allen L; Richard G Sextro, and William J Riley.

1996

Scale Dependence of Soil Permeability to Air: Measurement Method and Field Investigation

Authors: Garbesi, Karina; Richard G Sextro; Allen L Robinson; John D Wooley; Jonathan A Owens, and William W Nazaroff.
03/1996

Factors Affecting Indoor Air Concentrations of Volatile Organic Compounds at a Site of Subsurface Gasoline Contamination

Authors: Fischer, Marc L; Abra J Bentley; Kristie A Dunkin; Alfred T Hodgson; William W Nazaroff; Richard G Sextro, and Joan M Daisey.
09/1966

Investigation of the fate of nicotine in a stainless-steel chamber

Authors: Van Loy, Michael D; William W Nazaroff; Victor C Lee; Lara A Gundel; Richard G Sextro, and Joan M Daisey.

Soil gas entry into an experimental basement driven by atmospheric pressure fluctuations, measurements, spectral analysis, and model comparison

Authors: Robinson, Allen L; Richard G Sextro, and William J Fisk.

1995

Direct measurements of soil-gas entry into an experimental basement driven by atmospheric pressure fluctuations

Authors: Robinson, Allen L, and Richard G Sextro.

The Influence of a Subslab Gravel Layer and Open Area on Soil-Gas and Radon Entry into Two Experimental Basements

Authors: Robinson, Allen L, and Richard G Sextro.

1994

Deposition of Tobacco Smoke Particles in a Low Ventilation Room

Authors: Xu, Mindi; Matty Nematollahi; Richard G Sextro; Ashok J Gadgil, and William W Nazaroff.
01/1994

1992

A Coupled Multi-zone Flow and Radon Transport Model of Radon Entry and Concentrations in a Crawlspace House

Authors: Sextro, Richard G; Helmut E Feustel; Mark P Modera; Kenneth L Revzan, and Max H Sherman.
01/1992