FALL LINE AIR QUALITY STUDY

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FALL LINE AIR QUALITY STUDY

• Progress and Plans
• May 17, 2001

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FAQS Project Team

• Dr. Michael Chang
• Dr. C.S. Kiang
• Dr. Bill Chameides
• Dr. Ted Russell
• Dr. Karsten Baumann
• Dr. Rodney Weber
• Dr. Michael Bergin
• Dr. Doug Worsnop
• Dr. Don Blake
• Dr. Jing Zhao
• Dr. Doug Orsini
• Dr. Kip Carrico

• Dr. Mike Baker
• Dr. Jose Jimenez
• Dr. Manjula Carnagaratna
• Mr. Frank Ift
• Mr. Roby Greenwald
• Mr. Jin Xu
• Ms. Yilin Ma
• Ms. Amy Sullivan
• Mr. Wes Younger
• Mr. Brian Jaynes
• Mr. Danny Dipasquale

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Smog in Georgia(Year 2000)

• of days over proposed stds.
• Atlanta.46
• Macon.17
• Columbus..9
• Augusta.5
• North GA Mtns...16
• South Central GA.6
• Savannah..1
• South Coastal GA.0

• of days over Federal AQ stds.
• Atlanta.11
• Macon...3
• Columbus..1
• Augusta.1
• North GA Mtns.0
• South Central GA.0
• Savannah...0
• South Coastal GA.0

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Basis for Columbus Nonattainment

• EPD Monitors at Airport (est. 1983) Crime Lab
  (est. 1981)
• Number of exceedances of 8-hour ozone
  standard
• 1997 1998 1999 2000
• Airport 1 8 9 5
• Crime Lab 2 8 13 7
• Number of exceedances of 1-hour ozone
  standard
• 1997 1998 1999 2000
• Airport 0 0 0 1
• Crime Lab 0 0 0 0

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Peak Observed 8-hour Averaged Ozone
Concentrations (ppmv) at Columbus Airport
1997-2000
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Peak Observed 8-hour Averaged Ozone
Concentrations (ppmv) at Columbus Crime lab
1997-2000
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Georgias historical AQ problem Atlanta
GA EPD ozone monitoring site
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Georgias air quality problem now
Atlanta, Augusta, Macon, Columbus,
Leslie.
Home grown pollution?
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Georgias air quality problem now
Atlanta, Augusta, Macon, Columbus,
Leslie.
Or big city transport?
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Georgias air quality problem now
Atlanta, Augusta, Macon, Columbus,
Leslie.
Or regional scale?
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Georgias air quality problem now
Atlanta, Augusta, Macon, Columbus,
Leslie.
Or combination?
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Peak Observed 8-hour Averaged Ozone
Concentrations (ppmv) at Columbus Crime lab
1997-2000
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Formulating a hypothesis for Columbus The
Russell Report
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Ozone (ppbv)
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FAQS Phase I

• May 1 - December 31, 2000
• Preliminary Data Analysis
• Pilot Field Study

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Correlations between Georgias Ozone Monitors
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Occurrences of Exceedances in Columbus,
Georgia and across the Southeastern US (2000)
Number of Sites Exceeding 8-hour ozone NAAQS
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Ozone Air Quality as a Function of Wind Speed and
DirectionColumbus Airport, Georgia 1997-1999
N
NE
NW
Good Moderate Unhealthy for Sensitive
Groups Unhealthy
E
W
Wind Speed (mph)
SW
SE
S
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Ozone Air Quality as a Function of Wind Speed and
DirectionColumbus Crime Lab, Georgia 1997-1999
N
NE
NW
Good Moderate Unhealthy for Sensitive
Groups Unhealthy
E
W
Wind Speed (mph)
SW
SE
S
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Forming a Hypothesis for the State.
Atlanta and Macon share an airshed that is
capable of generating significant ozone
independent of the region.
Columbus and Augusta, are more closely related
to the larger regional airshed, but also may be
responsible for a small but significant amount of
local ozone production.I
Leslie??
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The Columbus Pilot Study

• July 16 - 26, 2000
• Upwind / downwind study
• Characterizing the physical
• and chemical composition
• of the local atmosphere.

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Observations from the Air Quality Trailer
Macon Augusta Columbus
Wind Spd. Ozone
Periodicity ? daily cycle of ozone (low in AM,
high in PM), and winds
(lighter in early AM, peaking in early PM)
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Observations from the Air Quality Trailer
Macon Augusta Columbus
Spikes ? plume influence
CO SO2
Bimodal ? rush hour influence
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NO/NOy Ratios observed in Macon and Columbus
Macon Columbus
High NO/NOy ? Fresh Emissions and air in chemical
transition Low NO/NOy ? Chemically stable air
mass
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Isoprene - primarily biogenic (natural), highly
reactive in ozone formation process.
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Ground-level Ozone Formation
Volatile Organic Compounds (VOCs)
Nitrogen Oxides (NOx)
Ozone (O3) Smog

Combustion Processes
Fuels, Paints, Solvents, Vegetation
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Fine Particulate Matter (PM2.5)
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Particle Compostion - No matter location or time,
sulfate and organic carbon dominate.
Macon Augusta Columbus
Satellite Sites
Mobile Lab
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Black Carbon in South Columbus?
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Columbus Pilot Study Summary

• Upwind / downwind experiment not much success -
  yet.
• Water works site was influenced by J.R. Allen
  Parkway
• VOC profile similar to Atlanta ? may mean
  Columbus
• is NOx limited.
• PM primary composition is organic carbon and
  sulfate.
• May see some evidence of black carbon episodes
• at Oxbow

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FAQS Phases II and III
Emission Inventory Air Quality Modeling
Field Study
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Filling in the Numbers
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For more informationwww.cure.gatech.edu/faqs.asp