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Georgia Power Environmental Engineering Fellows at (and beyond) Georgia Tech

Georgia Power Environmental Engineering Fellows at (and beyond) Georgia Tech. Objective of Georgia Power Fellowships. Attract top notch graduate students to Tech Facilitate research in areas of interest to Georgia Power

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Georgia Power Environmental Engineering Fellows at (and beyond) Georgia Tech

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  1. Georgia Power Environmental Engineering Fellows at (and beyond) Georgia Tech Georgia Tech

  2. Objective of Georgia Power Fellowships • Attract top notch graduate students to Tech • Facilitate research in areas of interest to Georgia Power • Educate students in areas of interest to Georgia Power for future employment • Enhance communication between Georgia Power and Georgia Tech in the environmental areas Georgia Tech

  3. Past and Current Fellows • Katie Wade (now at Sonoma Technologies) • Continuing to conduct air quality studies with health applications • Diane Ivy • Miranda Lowe • Yu Miyashita Georgia Tech

  4. Air Quality Studies in CEE: A Sampler Armistead (Ted) Russell, Georgia Power Professor Model Development Measurement Sensitivity analysis 3-D Air quality models Air quality measurements Model Application Policy / Health Siggraph Scientific Visualization Winner Source Impacts (www.ce.gatech.edu/~trussell) Georgia Institute of Technology

  5. Why A Sampler? • Range of Georgia Power relevant (and supported) studies a bit too much for 15 minutes… • Assessment of Spatial Aerosol Composition in Atlanta (ASACA) (GP funds) • Fall Line Air Quality Study (EPD + GP/SC) • Roadway Study (GP +EPA funds) • ARIES (NIH, EPA, EPRI, SC, GP…; with Emory) (Prof. Mulholland) • Source apportionment of PM in Georgia (GP + EPA) • Impact of NE Blackout (GP funds) • Satellite and aircraft data assimilation (NASA) • Sources of organic carbon aerosol (EPA + GP/SC) • PM & ozone in the Mexico-US border region (LAUSPAU) • Air quality management of regional air pollution (EPA + RFF) • Climate and Air Quality (EPA) • Prescribed burn impacts and management Georgia Tech

  6. Why A Sampler? • Range of Georgia Power relevant (and supported) studies a bit too much for 15 minutes… • Assessment of Spatial Aerosol Composition in Atlanta (ASACA) (GP funds) • Fall Line Air Quality Study (EPD + GP/SC) • Roadway Study (GP +EPA funds) • ARIES (NIH, EPA, EPRI, SC, GP…; with Emory) (Prof. Mulholland) • Source apportionment of PM in Georgia (GP + EPA) • Impact of NE Blackout (GP funds) • Satellite and aircraft data assimilation (NASA) • Sources of organic carbon aerosol (EPA + GP/SC) • PM & ozone in the Mexico-US border region (LAUSPAU) • Air quality management of regional air pollution (EPA + RFF) • Climate and Air Quality (EPA) • Prescribed burn impacts and management Georgia Tech

  7. Particulate Matter • Concern due to health and visibility impacts • Atlanta in non-attainment • Complex mixture of solid and liquid particles suspended in the ambient air • Size classifications • “super-coarse” > 10μm • “coarse” (PM10) < 10μm • “fine” (PM2.5) < 2.5μm • “ultrafine” < 0.1μm • Many sources • Many chemical species: • Ozone (a gas) also of concern • Health effects • Atlanta is in non-attainment Georgia Tech

  8. ASACA (GP funded) • System of four monitoring locations around Atlanta • Continuous PM2.5 • Daily PM2.5 composition • “Continuous” since 1999 • Designed to • Complement SEARCH • Provide unprecedented spatial, compositional and temporal coverage in Atlanta • SEARCH+STN+ASACA • Provide data for • Health (ARIES) • Model evaluation • Targets of opportunity (Fire!) • Student (UG & Grad) training ASACA Georgia Tech

  9. Observed PM Concentrations Simulated PM plume Capturing a Forest Fire • February 28th, 2007 • 3000 acre planned burned 70 km SE of Atlanta • Winds shift • PM levels climb from <10mg m-3 to over 150 in two hours • Ozone jumps 20 ppb • Bad for health, but • Great opportunity to diagnose forest fire impacts • ASACA composition data • Fires appear to have greater impact than emissions inventories suggest • Rich in OC, not EC • Aging increases water solubility Georgia Tech

  10. Provide a virtual laboratory to better understand atmospheric dynamics and emission control impacts Applications Assess impacts of planned controls on attainment Fall line air quality study (FAQS) Impact of climate on air quality Understand how much the 2003 NE blackout impacted air quality Air Quality Goals Air Quality/Health Impacts Controls Pollutant Distributions Chemistry Air Quality Model Emissions Meteorology Air Quality Modeling Georgia Tech

  11. Air Quality Model Application Domain 36-km 12-km 4-km Georgia Tech

  12. Impact of Planned Controls: 2000 vs. 2007 Planned emissions reductions lead to about a 10-20 ppb ozone reduction: Can we figure out which sources continue to be main contributors to nonattainment? Georgia Tech

  13. Residual ozone from Atlanta sources apportioned by NOx category Cross-sens. Contribution to Atlanta ozone (ppm) Sum of parts Atlanta NOx: Aggregate Atlanta NOx: By Category 65% Linear Georgia Tech Atlanta MSA, 8-hour ozone, Aug. 13-19, 2000 (Year 2007 emissions)

  14. Climate Impacts on Air Quality • Smog tends to get worse when it is warm… • Climate change is expected to make things warmer… • So, is air quality going to get worse? Complexity: Emissions will change, so what are the relative impacts (controls vs. climate change) Georgia Tech

  15. Emission Changes 2050 no controls 2050 no controls Now Georgia Tech

  16. NASA GISS IPCC A1B MM5 MCIP SMOKE(w/ 2001 EI) SMOKE(w/ 2050 EI) CMAQ-DDM What “we” have done… • Simulated how climate will impact air quality using large scale, 3D air quality models • Focused on changes expected in about 2050 • Included climate change impacts with and without emissions changes And the answer is… Georgia Tech

  17. standard Impact of Potential Climate Change and Planned Controls on Ozone and PM2.5 • Controls will significantly lower PM and Ozone • Ozone: 3-40 (maximum 8-hr) ppbV lower in 2050 (6-40%), PM~ 40% • Climate has a more limited impact • Climate has a more limited impact • Ozone: +1ppbV, PM can go up or down Georgia Tech

  18. Blackout!

  19. Ozone PM2.5 Assessing the Impacts of the 2003 NE Blackout • August 14, 2003 : Large scale blackout begins over parts of the Northeast, Midwest, and Ontario • U. Maryland analyzes flight data, suggests drop in power plant emissions led to: • 50% decrease in ozone @PA site • 90% decrease in sulfate • Challenges models to use this data set to evaluate ability to capture such changes • EPRI analysis suggests not so fast • GIT jumps in… • Ozone impact 4% • Large fraction from automobiles • Sulfate impact 20% • Much of the UM impact due to strange trajectory • Came over Canada, not Ohio River Valley Georgia Tech

  20. Questions? Georgia Tech

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