Linda A. George, PhD
Professor of Environmental Sciences and Management
College of Liberal Arts and Sciences,
Phone - 503.725.3861; Fax - 503.725.3888; E-mail - georgeL@pdx.edu
Office - Science Research and Teaching Center (SRTR), Room 474 ................ Laboratory SB2 463
Ph. D., Environmental Sciences & Resources/Chemistry, Portland State University, 1991
Dissertation Title: "Development of a direct, low pressure, laser-induced fluorescence measurement technique for NO2, ambient measurements and urban NOx chemistry"
B.S., Chemistry, cum laude, Loyola University of Chicago, 1983
Atmospheric chemistry, monitoring and modeling of urban air pollutants, assessing human exposure to and perception of air pollutants and climate change, development of measurement techniques for quantifying atmospheric species, investigations of urban climate modification and atmospheric science education
Member of PSU Center for Climate and Aerosol Research
Recent and Current Projects:
NSF funded GK12 project, "Cascade to Coast GK-12: Enhancing STEM Education through Environmental Sustainability" will support 28 doctoral students with $30K one to two year fellowships over the course of five years to enhance their public science communication skills by working with teachers in the Portland, Hillsboro and Gresham school districts with Cat deRivera (ESM), Elise Granek (ESM), Marion Dresner (ESM). http://www.pdx.edu/soe-gk12
Project with Oregon Department of Transportation, METRO regional government and Friends of Trees to assess ecosystem services of trees planted along I-205. Oregon Field Guide coverage
Using Urban Canopy Designs to Improve Air Quality and Public Health in Metropolitan Areas of the U.S, funded by US Forest Service with V. Shandas (Urban Planning), A. Dinno(Comm Health), T. Rosenstiel (Bio) and J. Daniels (USFS).
Investigating the Effects of Traffic Manangement and Environmental Conditions on Emissions from a Heavily Trafficked Urban Arterial in collaboration with Peter Koonce and Willie Rotich, City Of Portland, and graduate student Christine Kendrick (EPA Star Fellow).
Feedbacks between Urban Systems and the Environment (FUSE) (NSF)-- This a large scale, mult-year, multi-investigator project funded through the NSF Biocomplexity program. The research objective is examine the feedbacks between urban climate modification, air pollution and human activity through field studies and modeling. Portlan Oregon and Houston Texas are our testbeds. Project website (www.fuse.pdx.edu) ( with Dave Sailor (MECH) and Jan Semenza (Public Health)). One of activities is to conduct a Summer FUSE Research Institute for high school science teachers and their students (for more info).
Portland Area Air Toxics Analysis (with Vivek Shandas). Oregon DEQ and EPA recently developed a refined air toxics emission inventory for the Portland area. The emission inventory was used with a dispersion model and exposure model to predict human exposure to air toxics. Dr. Shandas and I are using this data with geospatial information about demographics to assess disproportionate impacts of air toxics. We are also assessing the health care costs associated with exposure.
Carbon Nanotube Sensing - ( with Shalini Prasad (ECE)) Measurements of air quality parameters remain extremely limited due to the high expense and maintanance of standard air quality instrumentation. Passive measurement methods are low-cost but are labor intensive and require long averaging times. Nanotechnology based sensing devices have the potential of overcoming these limitations. We are working on coating nanotubes with chemicals that react selectively with pollutants in ambient air. Our goal is to develop sensitive, continuous sensing devices that are rapidly deployable and cost-effective.
Neigbhorhood Level Diesel Exhaust Components (EPA) -- This study investigates the penetrations of diesel exhaust components, NO2 and diesel particulate matter, into neigbhorhoods adjacent to I-5 North. (with Dean Atkinson (CHEM))
Spatial Analysis of NO2 (Murdock Foundation) - The project is a collaboration with Kathy Childress, a high school science teacher at Gresham High School. We are using passive NO2 diffusion tubes to study the spatial variation of NO2 (a combustion related pollutant) in the Portland area. Matt Mavko, MS ESR, has recently completed his thesis "APPLICATIONS OF PASSIVE NITROGEN DIOXIDE MEASUREMENT FOR QUANTIFYING AND MAPPINGURBAN AIR POLLUTION". An inverse dispersion model to predict roadway emissions factors was developed and agreed well with conventional approaches. In another application, passive measurements were used to develop a land use regression model of county-wide NO2 levels.
Air Quality Demonstration Project in SE Asia (US-AID) - This project involves the development of air quality demonstration projects in Hanoi, Vietnam and Chiang Mai, Thailand. The goal of these projects is to collaborate with local officials to identify air quality project that can be addressed through measurements, modeling, public involvement and policy development (with Glenn Montgomery and Sunun Setboonsarng (Oregon Economic Development) and Marcus Ingle (Executive Leadership Institute).
Science Gender and Social Context (with Johanna Brenner (Sociology/Women's Studies)- This is a longstanding educational research project examining the impact of a unique course integrating science and gender analysis (SCI/WS 347 Science, Gender and Social Context) on students understanding of science and feminist science studies. Our working paper on this course is "Final Frontiers".
Graduate Research Projects (primary or co-advisor):
Jeremy Parra ( post-doc, awarded PhD 2012) - Novel optical technique for NO2 and NO3 gradient studies
Meenakshi Rao (ESM PhD student) - Investigations of landuse planning policies and air quality
Christine Kendrick (ESM PhD student) - Personal exposure to air pollutants as a function of mode of travel.
Jacinda Mainord (ESM PhD student) - Formation and deposition of nitrogen compounds
Holly Neill (ESM MS Student) - Formation of organic nitrates from an urban outflow
Kassie Ridley (ESM MS Student) - Investigating the role of plants with indoor air quality
Miles Javes (ESM MEM Student) - Effect of reduced sulfur fuel on shipping emissions in Portland
Vinh Mason (ESR MEM awarded 2008) -Adaptive Management of Local Greenhouse Gas Emissions to Mitigate Global Climate Change
Justin Olexy (ESR MEM awarded 2009) - Assessment of effectiveness of voluntary air quality mitigation
Bhuvana Sekana (MS Electrical Engineering awarded 2008) - Nanotube sensing device for nitrogen dioxide
Kate Norton (MST student awarded 2008) - Assessment of Student Watershed Research Project (SWRP)
Laura Offerman (MST student awarded 2007) - examination of the impact of inquiry-based learning on student science learning. Development of a teaching module and guidebook for lichen bio-monitoring of air pollution.
Matthew Mavko (MS Env. Science awarded 2006) - application of passive NO2 measurements for quantifying and mapping urban air pollution
Karen Hunter (MST awarded 2004) - modernization of high school physics curricula
Margaret Johnson (MST awarded 2003)- science inquiry and gender
Tasha Murray (MST awarded 2002) - development of a critical review instrument to assess student understanding of science inquiry
Patrick Edwards (MST awarded 2000) - science teacher professional development
Chris Bailey (MEM awarded 2004)- evaluating urban heat island effect in portland
Tia Henderson (MST awarded 2004)- community health education/asthma education
Charlotte Marshall (MST awarded 2004)- science identity formation and gender in middle school students
David Krassner (MST awarded 2005) - investigating science career orientation in a service learning project at the Oregon Museum Science and Industry
Courses Currently Offered:
ESM 230/231: Fundamentals of Environmental Chemistry
SCI 331: Urban Air Pollution
UNST 420: Environmental Justice Capstone
ESM 460/560 Air Quality
ESM 410/510 Impacts of Climate Change on the Environment (starting Spring 2014)
- M.Rao, L.George, T. Rosenstiel, V. Shandas, A. Dinno, "Assessing the relationship among urban trees, nitrogen dioxide, and respiratory health", accepted Env. Pollution 2014. (accepted manuscript)
- J. Semenza, G. Ploubidis, L. George, "Climate change and climate variability: personal motivation for adaptation and mitigation", Environmental Health, 10:46, 2011.
- C. Kendrick, A. Moore, A. Haire, A. Bigazzi, M. Figliozzi, C. Monsere, L. George, " The Impact of Bicycle Lane Characteristics on Bicyclists Exposure to Traffic-Related Particulate Matter", Transportation Research Board Journal, 2247,24-32, 2011.
- J. Parra and L. George, “Atmospheric Pressure Laser-Induced Fluorescence Determination of Ambient Levels of NO2”, accepted, Applied Optics, 48(18), 3355-61, 2009.
- L. George and J. Brenner, “ Increasing Scientific Literacy about Global Climate Change through a Laboratory-based Feminist Science Course” , Journal of College Science Teaching, 39 (4), 28-34, 2010.
- Vivek Shandas and Linda George, "Spatial Patterns of Air Toxins and Implications for Metroscape Residents and Urban Planners”, Metroscape, Winter 2009.
- D. Meka, L. George, S.Prasad, ”Polymer Nanocomposite Based Electrical Nitrogen Dioxide Gas Sensor”, Journal of the Association of Laboratory Automation, No. 4, 69-75, 2009.
- Semenza,J.C., Hall D., Wilson D.,Bontempo, B., Sailor, D. and George,L.A. , “Public Perception of Climate Change: Voluntary Mitigation and Barriers to Behavior Change”, American Journal of Preventive Medicine, 35( 5), 479-487, 2008
- G. Duh, V. Shandas, H. Chang and L. George, “Rates of Urbanization and the Resiliency of Air and Water Quality”, Science of the Total Environment, 400, (1-3), 238-256,2008.
- J. Semenza, D. Wilson, J. Parra, B. Bontempo, D. Sailor and L. George, " Public perception and behaviour change in relationship to weather and air pollution", 107(3):401-11, Environmental Research, 2008
- M. Mavko and L. George, "Sub-Neighborhood Scale Geographic Regression Model for Predicting Nitrogen Dioxide Levels", Science of the Total Environment 398, 68-75, 2008.
- L.A. George and W. Becker, "Investigating the Urban Heat Island Effect", Journal of Geoscience Education, 51(2) 237-243 2003.
- T.M.Hard, L.A. George and R.J. O'Brien, " An Absolute Calibration for Gas-Phase Hydroxyl Measurements", Environmental Science and Technology, 36(8) 1783-1790, 2002.
- L.A. George, T.M. Hard and R.J. O'Brien, "Measurements of Free Radicals OH and HO2 in Los Angeles Smog," Journal of Geophysical Research, 104,11643-11656, 1999.
- C. Swihart, D. Atkinson, L.A. George, " Assessing the impact of biogenic emissions from an urban forest on urban air quality with field measurements and computer modeling", Invited Paper, Research Corporation Partners in Science Conference Summary. 1999.
- L.A. George and J. Straton, " Integrating Science into a Multidisciplinary Course as a Means to Develop Critical Thinking," Journal of General Education, Vol. 28, 111-117, No. 2, 1999.
- T.M. Hard, L.A. George and R.J. O'Brien, "FAGE Determination of Tropospheric HO and HO2", Journal of Atmospheric Sciences, 52, pp. 3354-3372, 1995.
- M.J. Campbell, B.D. Hall, J.C. Sheppard, P.L. Utley, R.J. O'Brien, T.M. Hard and L.A. George, "Intercomparison of Local Hydroxyl Measurement by Radiocarbon FAGE Techniques", Journal of Atmospheric Sciences, 52, pp. 3421-3427, 1995.
- R.J. O'Brien and L.A. George, "Tropospheric Chemical Reactivity and Its Consequences for Clean and Polluted Air " in The Science of Global Change, pub. by the American Chemical Society, editors D. Dunnette and R.J. O'Brien, pp. 64-118, 1992.
- L.A. George and R.J. O'Brien, "Prototype FAGE Determination of NO2, " Journal of Atmospheric Chemistry, 12, 195-209, 1991.
- C.Y. Chan, T.M. Hard, A. Mehrabzadeh, L.A. George and R.J. O'Brien,"Third Generation FAGE Instrument for Tropospheric Hydroxyl Radical Measurement", J. Geophysical Res., 95, 18569, 1990.
American Geophysical Union - Atmospheric Section
Air Advice Incorporated - Technical Advisory Board
Last updated May 2012- LAG
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