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Scholarly Interest Report
         
Loren Raun
Assistant Research Professor
Assistant Research Professor in Statistics
 
e-mail:raun@rice.edu
 
  • Ph.D. Environmental Science and Engineering (1998) Rice University, Houston, TX
  • M.S. Environmental Science and Engineering (1989) Rice University, Houston, TX
  • B.S. Geophysics (1986) University of Texas, Austin, TX
 
Primary Department
   Department of Statistics
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Department Affiliations
 
  • Department of Civil and Environmental Engineering
  • Department of Statistics
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    Websites
     Ensor Raun Research Group
     Ensor Raun Research Group
     
    Research Areas
     Environmental statistics, human health risk assessment, association between human health and air pollution exposure and translation of science to policy
     
    Selected Publications
     Refereed articles
     

    Raun, Loren Hopkins, Laura A. Campos, Elizabeth Stevenson, Katherine B Ensor, David Persse and Gwen Johnson "Analyzing Who, When and Where: Data to Better Target Resources for School-based Asthma Interventions." Journal of School Health August 2016In Press

     
     

    Hoyt, Daniel and Loren H Raun "Measured and Emission Factor Estimated Benzene and VOC Emissions at a Major US Refinery/Chemical Plant: Comparison and Prioritization." Journal of Air and Waste Management Association, 65, 8

     
     

    Raun, Loren H, Katherine Ensor, Laura Campos, and David Persse "Factors affecting ambulance utilization for asthma attack treatment: understanding where to target interventions." Public Health

     
     

    Raun, Loren Hopkins, Katherine Bennett Ensor, David Persse and Fuyuen Yip "Identifying City-specific High Risk Asthma Days: An Assessment of Multi-pollutant, Meteorological and Local Characteristics." Air Pollution Atmosphere and Health Submitted

     
     

    Raun, Loren Hopkins, Laura A. Campos, Elizabeth Stevenson, Katherine B Ensor, David Persse and Gwen Johnson "Analyzing Who, When and Where: Data to Better Target Resources for School-based Asthma Interventions." Journal of School Health Submitted

     
     

    Ensor, Kathy, Loren Raun, David Persse "A case-crossover analysis of out-of-hospital cardiac arrest and air pollution." Circulation, 127 (February 2013) : 1192-1199.

     
     

    Loren H. Raun, Larry S. Jefferson, David Persse, Katherine B. Ensor "Geospatial analysis for targeting out-of-hospital cardiac arrest intervention." American Journal of Preventive Medicine, 45: 137-142.

     
     

    Raun Loren H, Kathy Ensor, David Persse "Reducing exposure to air pollution triggered asthma attacks using community level strategies: A case crossover analysis." Environmental Health (February 2014) Submitted

     
     

    Raun Loren H, Larry Jefferson, David Persse, Kathy Ensor "Geospatial analysis for targeting out-of-hospital cardiac arrest intervention." American Journal of Preventive Medicine, 45 (2) (August 2013) : 137-142.

     
     

    Raun, Loren H, Karl Pepple, Daniel Hoyt, Don Richner, Arturo Blanco and Jiao Li "Community scale air pollution area source impact and public health: Neighborhoods identify an under-regulated area source of metal particulates." Environmental Impact Assessment Review, 41 (January 2013) : 70-77.

     
     Articles
     

    Ensor, K., Raun, L., and Persse, D. "A case-crossover analysis of out-of-hospital arrest and air pollution."  (August 2012) Submitted

     
     

    L. Raun "Fate and transport modeling in Encyclopedia of Environmetrics Second Edition." DOI: 10.1002/9780470057339.vnn073: 1008-1011.

     
     

    Raun, L. and Ensor, K. "Association of Out-of-Hospital Cardiac Arrest with Exposure to Fine Particulate and Ozone Ambient Air Pollution from Case-crossover Analysis Results: Are the Standards Protective?." James A. Baker III Institute for Public Policy (2012)

     
     

    Raun, L., Jefferson, L., Persse, D., and Ensor, K. "Within City Variation of Out-of-Hospital Cardiac Arrest and Bystander Cardiopulmonary Resuscitation using a Population-Based Study."  (November 2012) Submitted

     
     

    Raun, L., Pepple, K., Blanco, A., Richner, D., and Li, J. "Community scale air pollution area sources and public health: Assessing risk from an under-regulated area source of metal particulate."  (October 2012) Submitted

     
     

    Bratberg, David and Loren P. Hopkins "A Comparison of Risk Assessment and Risk-Based Corrective Action Procedures in the United States." Proceedings of the Hazardous Materials Control Resources Institute Superfund XV Conference (November 6-8, 1995)

     
     

    Correa, Oscar, Hanadi Rifai, Loren Raun, Monica Suarez and Larry Koenig "Concentrations and Vapor-Particle Partitioning of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in Ambient Air of Houston, Texas." Atmospheric Environment, 38(39) (December 2004) : 6687-6699.

     
     

    Correa, Oscar, Loren Raun, Hanadi Rifai, Monica Suarez, Thomas Holsen and Larry Koenig "Depositional flux of polychlorinated dibenzofurans in an urban setting." Chemosphere, 64(9) (2006) : 1550-1561.

     
     

    Durham, Lisa A., Jeff Carman, and Loren P. Hopkins "Delineation of Hydrostratigraphic Units in a Carbonate Aquifer,."  (October 1992)

     
     

    Hopkins, Loren P. "A Hydrogeologic Database for Stochastic Groundwater Modeling with Hydrogeologic Specific Applications." Master's thesis, Rice University, Department of Environmental Science and Engineering, (May 1989)

     
     

    Hopkins, Loren P. and David Bratberg "Nationwide Survey of Risk Assessment and Risk-Based Corrective Action Procedures." Proceedings of the NGWA Petroleum Hydrocarbons and Organic Chemicals in Groundwater: Prevention, Detection and Restoration (November 1995)

     
     

    Hopkins, Loren P. and Michael F. Marcon "The Use of Kriging to Optimize Sampling for Risk Assessment and Remediation."  (1995)

     
     

    Hopkins, Loren P. and Scott Edelen "Optimization of Statistical Hypothesis Testing for Environmental Data Using Nonparametric vs. Parametric Methods."  (November 1991)

     
     

    Hopkins, Loren P. and Viru Raparthi "EPA and State Policies on Adjustment of Toxicity Factors for Dermal Absorption." For the Texas Natural Resource Conservation Commission (July 1994)

     
     

    Hopkins, Loren P., Charles J. Newell and Philip B. Bedient "A Hydrogeologic Database for the EPACML Regulatory Model." Proceedings of the NWWA Petroleum Hydrocarbons and Organic Chemicals in Groundwater: Prevention, Detection and Restoration (November 1989)

     
     

    Hopkins, Loren P., Hanadi S. Rifai and Paul LaWare "Using Compounding Risk as a Guide for Establishing Area-Specific RBCA Risk Limits." Proceedings of the NGWA Petroleum Hydrocarbons and Organic Chemicals in Groundwater: Prevention, Detection and Restoration (November 1995)

     
     

    Hopkins, Loren P., Katherine B. Ensor and Hanadi S. Rifai "Empirical Evaluation of Ambient Ozone Interpolation Procedures to Support Exposure Models." Journal of the Air and Waste Management Association, 49 (1999) : 839-846.

     
     

    Hopkins, Loren P., Katherine Ensor, Matthew P. Fraser, and Hanadi S. Rifai "Evaluation of the Use of Empirical Ambient Ozone Pollutant Modeling and Subject Activity Logs as an Indirect Measurement of Exposure." Proceedings of the Air and Waste Management Association 91st Annual Meeting (June 1998)

     
     

    LaGoy, Peter K., and Loren P. Hopkins "Practical Considerations in Developing Site Specific Cleanup Levels." Remeddiation (January 1991)

     
     

    Newell, C. J., J. F. Haasbeek, L. P. Hopkins, S. E. Alder-Schaller, H. S. Rifai, P.B. Bedient, G. A. Gorry "OASIS: Parameter Estimation System for Aquifer Restoration Models." Userís Manual Version 2.0, EPA/600/S8-90/039, (1990)

     
     

    Newell, Charles J., Loren P. Hopkins, and Philip B. Bedient "Hydrogeologic Database for Ground Water Modeling." American Petroleum Institute, Publication No. 4476, Health and Environmental Sciences Department (February 1989)

     
     

    Newell, Charles J., Loren P. Hopkins, and Philip B. Bedient "The HGDB: A New Hydrogeologic Database and Groundwater Modeling Tool." Journal of Ground Water (September - October 1990)

     
     

    Raparthi, Viru and Loren P. Hopkins "A Risk Based Evaluation of the Appropriateness of Natural Remediation as a Remedial Alternative in the Vadose Zone." Proceedings of the NGWA Outdoor Action Conference and Exposition on Aquifer Remediation, Ground Water Monitoring, Geophysical Methods, and Soil Treatment (May 2-4, 1995)

     
     

    Raun, L. "Statistical Assessment of Benzene and 1,3 Butadiene in Ambient Air in the Houston Region: 1997 to 2007." City of Houston Mayor's Office of Environmental Programming

     
     

    Raun, L., Kathy Ensor, David Persse "Out of Hospital Cardiac Arrest and Hourly Ambient Air Pollution in the Houston, Texas: A Case-Crossover Analysis of Multiple Pollutants and Emergency Medical Services Data." In Revision

     
     

    Raun, Loren H., Elena M. Marks, and Katherine B. Ensor "Detecting improvement in ambient air toxics: An application to ambient benzene measurement in Houston, Texas." Atmospheric Environment, 43(29) (June 2009) : 3259-3266.

     
     

    Raun, Loren H., Oscar Correa, Hanadi Rifai, Monica Suarez, and Larry Koenig "Statistical investigation of polychlorinated dibenzo-p-dioxins and dibenzofurans in the ambient air of Houston, Texas." Chemosphere, 60 (2005) : 973-989.

     
     

    Rifai, Hanadi and Loren P. Hopkins "The Natural Attenuation Toolbox: A Decision Support System for Evaluating the Appropriateness of Natural Remediation as A Remedial Alternative." Proceedings of the Third Annual Symposium on Bioreclamation (April 1995)

     
     Other
     

    L. Raun "Fate and Transport Modeling." Encyclopedia of Environmetrics (01/15/2013)

     
     

    Hopkins, Loren P. "A Stistical Investigation of Ozone Exposure Assessment by Direct and Indirect Measurement." Department of Environmental Science and Engineering (May 1998)

     
     

    Raun, L. "City of Houston Benzene Action Plan." An Interim Report (May 27, 2008)

     
     

    Raun, L. "Comments of the City of Houston: National Emission Standards for Hazardous Air Pollutants from Petroleum Refineries." EPA proposed rule (December 20, 2007)

     
     

    Raun, L. "Comments of the City of Houston: TCEQ 1,3 butadiene proposed ESL changes." 

     
     

    Raun, L. "Drafted amendment to the nuisance ordinance to specifically address ambient air concentrations of certain hazardous air pollutants." City of Houston Code of Ordinances, Draft Nuisance Ordinance

     
     

    Raun, L. "Houston Regional Benzene Air Pollution Reduction: A Voluntary Plan for Major Sources." City of Houston Mayor's Office of Environmental Programming, Department of Health and Human Services, Bureau of Air Quality Control (2006)

     
     

    Raun, L. "Severity and Trend Analysis of Benzene and 1, 3 Butadiene Concentrations in the ambient Air in the Houston Region: 2000 to 2009." City of Houston Bureau of Air Quality Control

     
     

    Raun, L. "Trend Analysis of Ozone Concentrations in the City of Houston and Vicinity (2005-2009) ." City of Houston Bureau of Air Quality Control

     
     

    Raun, L. and D. Hoyt "Measurement and Analysis of Benzene and VOC Emissions in the Houston Ship Channel Area and Selected Surrounding Major Stationary Sources Using DIAL (Differential Absorption Light Detection and Ranging) Technology to Support Ambient HAP Concentrations Reductions in the Community (DIAL Project)." City of Houston Bureau Pollution Control and Prevention, Final Report (June 2011)

     
    Presentations
     Invited Talks
     

    "Estimated Reduction in EMS-treated Asthma Attacks and Cost Savings from City-Specific Multi-Pollutant Ambient Air Asthma Warnings." CDC Summit on Environmental Hazards and Health Effects, (01/28/16) With Wang, Daini, Loren Raun, Kathy Ensor, and Tursynbek Nurmagambetov

     
     

    "Study of the Accuracy of Emission Factors and Emission Estimating Methods Using the DIAL System What does DIAL tell us about benzene and VOC emissions form refineries?." EPA Webinar, (October 2012)

     
     

    "What is actually emitted from Area Sources: Results of a Special Study of Metals Recyclers." EPA National Air Quality Conference - Ambient Monitoring 2012, Assessment and Special Studies, Denver, CO. (May 16, 2012)

     
     

    " U. S. EPA Region 6 13th Annual Quality Assurance Conference." Dallas, TX. (10/*20-24/03) With Raun, L., O. Correa, H.S. Rifai, M. P. Suarez and L. Koenig

     
     

    "A Quantitative decision-based voluntary benzene reduction plan for ambient air in the Houston region." EPA Conference, Las Vegas. (10/2006) With Raun, L., Dan Hoyt and Arturo Blanco

     
     

    "Clearing the Air in Houston: Using Science to Address Policy." Public Heath, Washington, D.C.. (11/2007) With Raun, L., and Jonathan Ward

     
     

    "Differential Absorption Light Detection and Ranging Measured Emissions at a Houston Ship Channel Area Petroleum Refinery and Chemical Plant: Methods, Results, Comparison to Emission Factors." Southeast Texas Photochemical Modeling Technical Committee, Texas Commission of Environmental Quality, (10/19/11)

     
     

    "Houston Air Monitor Location Sampling Optimization: Benzene, 1, 3 Butadiene and Ozone." City of Houston Bureau of Air Quality Control, (2007)

     
     

    "Houston Air Policy: Compliance, Impact, Limitations." Rice Environmental Conference, (10/2008)

     
     

    "Houston Human Health Risk from Air Pathway: Contribution form Shell Oil." City of Houston Bureau of Air Quality Control, (04/24/06)

     
     

    "Houston’s Proposed Regional Benzene Air Pollution Reduction: A Voluntary Plan for Major Sources." City of Houston Environmental Committee,

     
     

    "Houston’s Proposed Regional Benzene Air Pollution Reduction: A Voluntary Plan for Major Sources." Rice Environmental Conference, (10/16/07)

     
     

    "Methodology for Tracking the Health of an Airshed: Ambient Benzene and 1,3 Butadiene in Houston Air 1997 to 2007." (1997-2007)

     
     

    "Out of hospital cardiac arrest based on the levels of ozone and fine particulates: tracking and predicting at a temporal scale of one hour and a continuous spatial scale." Center for Disease Control, Tracking in Action, 2011 National Conference, Atlanta, Georgia. (09/14/11) With Raun, L., K. Ensor and D. Persse

     
     

    "Out of hospital cardiac arrest based on the levels of ozone and fine particulates: tracking and predicting at a temporal scale of one hour and a continuous spatial scale." University of Texas School of Public Health, Biostatistics Department, Houston, TX. (09/20/11) With Raun, L., K. Ensor and D. Persse

     
     

    "Statistical Techniques to Gain More Information from the Same Set of Air Monitoring Data: A Better Understanding of the Air Pollution Human Health Risk in Houston,." U. S. EPA Region 6 16th Annual Quality Assurance Conference, (10/20-24/06) With Raun, L., and A. Blanco

     
     Posters
     

    "An Exposure/Rick Based Screening Approach for Selecting the Natural Attenuation Alternative at Sites, In Situ and On-Site Bioreclamation." The Third International Symposium, San Diego, CA. (04/24-27/1995) With Rifai, H. S. and L. Hopkins

     
     

    "Evaluation of Campus Commitments to Sustainability Indicators in DOE Humid Zones." (11/2008) With Pepple, Karl, Brian Yeoman, Loren Raun, Daewon Byun

     
     

    "The Natural Attenuation Toolbox: A Decision Support System for Evaluating Natural Attenuation." NGWA/AP Conference on Petroleum Hydrocarbons and Organic Chemicals in Ground Water: Detection, Prevention and Restoration, Houston, TX. (Nov 29-Dec 1, 1995) With Rifai, H. S. and L. Hopkins

     
    Editorial Positions
     Editor, Counting on Quality of Life: An Environment Indicator Report. Center for Houston's Future. (2011 - 2011)

     Editor, State of Health, Houston/Harris County, Texas. Houston Department of Health and Human Services. (2011 - 2011)

     Other, The Control of Air Toxics: Toxicology Motivation and Houston Implications. (2011 - 2011)

     Other, Comparative Assessment of Air Pollution-Related Health Risks in Houston. (2011 - 2011)

     Other, A Closer Look at Air Pollution in Houston: Identifying Priority Health Risks, Report of the Mayorís Task Force on the Health Effects of Air Pollution. (2011 - 2011)

    Awards, Prizes, & Fellowships
     Faculty Teaching/Mentoring Award, Rice University Graduate Student Association

     Blackburn Scholarship awarded to fund Environmental Research in Human Health Air Pollution Exposure and Risk Assessment, (1997)

     Blackburn Award, Sixth Annual Rice Environmental Conference (1998)

     National trainer for the ASTM Risk Based Corrective Action Standard, (1996-date)

     Mayorís Keep Houston Beautiful Award, No Mow No More Esplanade Naturalization Program, Designed, Sponsored and Implemented Community Air Pollution Reduction/Awareness Programs (2007)

     BP Environmental Excellence Award, Condit Elementary School, Condit Kids for Clean Air, Designed, Sponsored and Implemented Community Air Pollution Reduction/Awareness Programs (2002)

     Mayorís Keep Houston Beautiful Award, Condit Elementary School, Condit Kids for Clean Air, Designed, Sponsored and Implemented Community Air Pollution Reduction/Awareness Programs (2002)

     Governorís Award, Texas Environmental Excellence Award, Condit Elementary School, Condit Kids for Clean Air, Designed, Sponsored and Implemented Community Air Pollution Reduction/Awareness Programs (2002)

     National Pollution Prevention Round Table, Most Valuable Pollution Prevention Program, Designed, Sponsored and Implemented Community Air Pollution Reduction/Awareness Programs (2002)

     Eleanor and Mills Bennett Fellowship in Environmental Science, Rice University fellowship awarded to outstanding graduate students (1996-1997, 1997-1998)

     Condit Elementary School, Condit Kids for Clean Air, Designed, Sponsored and Implemented Community Air Pollution Reduction/Awareness Programs (2002)

    Positions Held
     EPA Science Advisory Board, Risk and Technology Review Methods Panel, EPA. (2011 - 2011)

     Houston Region Air Quality Task Force, 2007. (2011 - 2011)

     City of Houston, Health Department, 2010 - Present. (2016 - 2016)

     Air Quality Monitoring Fellow Department of State, U.S. Embassy Jakarta. (2016 - 2016)

     Houston Exposure to Air Toxics Study Advisory Committee. (2011 - 2011)