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Meteorological Effects on Morning Rush Hour Air Pollution

Meteorological Effects on Morning Rush Hour Air Pollution. Chris Forehand Atlanta Commuter Exposure (ACE) Project. Background. What is the ACE project? Funded by the CDC Joint project between Emory University and Gatech Uses continuous and time integrated measurement Why is it important?

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Meteorological Effects on Morning Rush Hour Air Pollution

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  1. Meteorological Effects on Morning Rush Hour Air Pollution Chris Forehand Atlanta Commuter Exposure (ACE) Project

  2. Background • What is the ACE project? • Funded by the CDC • Joint project between Emory University and Gatech • Uses continuous and time integrated measurement • Why is it important? • High exposure concentrations on a daily basis

  3. Methodology

  4. For this class… • Examine the effects of: • Seasonal Trends • Temperature • Relative Humidity • Wind Speed • Precipitation • Limitations: • Mobile measurements • Limited meteorological data • Non-continuous observations

  5. Seasonal Trends

  6. Event AnalysisMoving Average

  7. Temperature

  8. Relative Humidity

  9. Precipitation Events

  10. Wind Speed

  11. Wind Speed (cont.)

  12. Conclusions • Seasonal Variation • Too much scatter and too few points to be very conclusive • Pollution seems to dominate in summer, contrary to ABL expectations • Temperature • Seems to be very loosely correlated • Relative Humidity • Little correlation for fresh source particulates • Wind Speed • Limited Data • Mild Correlation • Precipitation • Observable trends

  13. Acknowledgements • Jeremy Sarnat & Roby Greenwald • Emory University, Rollins School of Public Health • Mike Bergin • Georgia Institute of Technology • Martin Shafer • University of Wisconsin • PriyaKewada, James Gooch, Kyle Manning, and everyone else on the ACE / SCAPE team!

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