Atlanta PM2.5 Attainment Modeling with AERMOD Yan Huang, James Boylan, Peter Courtney, and Michelle Bergin (Georgia EPD

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Atlanta PM2.5 Attainment Modeling with AERMOD
Yan Huang, James Boylan, Peter Courtney, and
Michelle Bergin (Georgia EPD Air Protection
Branch)2009 Region 4 Modelers WorkshopMarch
18, 2009
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Outline

• Background
• Local AERMOD Modeling
• Updated 2012 DVF Projections

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Background
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Objective

• Elevated PM2.5 concentration in Atlanta
  non-attainment area
• Regional/urban scale sources
• Local sources

Demonstrate attainment in 2012?
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Location of Core Urban Sites
Doraville Health
E.Rivers
2.9mile
F.S.8
2.2mile
Jeff. St.
South-DeKalb
Forest Park
East Point
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Annual Average PM2.5 (Stations lt3 miles from
Fire Station 8)
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Railyard and Fire Station 8
Fire Station 8
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CMAQ PM2.5 Projections
AIRS ID County 2002 DVC 2009 DVF 2012 DVF
13-063-0091 Clayton 16.5 15.1 14.0
13-067-0003 Cobb 16.3 14.6 13.2
13-067-0004 Cobb 15.2 13.6 12.4
13-089-0002 DeKalb 15.9 14.4 13.3
13-089-2001 DeKalb 16.2 14.4 13.1
13-121-0032 Fulton 16.5 14.9 13.6
13-121-0039 Fulton 18.3 16.6 15.4
13-135-0002 Gwinnett 16.1 14.3 13.0
13-139-0003 Hall 15.1 13.4 12.1
13-223-0003 Paulding 14.3 12.8 11.5
Local Increment at Fire Station 8 1.8 mg/m3
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CMAQ 12-km Grid Cell
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AERMOD Modeling for Local Sources
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Local PM2.5 Sources

• Rail Yards
• Inman, Tilford, and Howells
• On-Road Mobile
• Marietta Blvd., Marietta St., and Bolton Rd.
• Local Industrial Facilities
• Plant McDonough, Meadwestvaco Packaging Systems,
  others

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Model Set-Up

• 2002-2006 five year simulation
• Elevated terrain (AERMAP)
• Five-hundred meter receptors
• Seasonal surface parameters with twelve 30-degree
  wind sectors (AERSURFACE)
• Meteorological data
• Peachtree City NWS upper air
• Atlanta Hartsfield airport NWS surface observation

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AERMOD Modeling Domain
Provided by B. Kim, GA EPD
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Locomotive Activity

• Two Class I railroad companies
• Norfolk Southern
• CSX Transportation
• Two locomotive activity categories
• Line-haul
• Switching

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2012 Emission Reductions

• Railyard
• 30 Genset replacement by 2012
• (currently 42 yard switchers)
• 93 PM2.5 emission reduction per Genset
• Mobile
• ARC link-based VMT data
• 50 60 reduction

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Locomotive PM2.5 Emission
Railyard 2002 of YS 2002LH (tons/ year) 2002YS (tons/ year) 2002Total (tons/ year) 2012 of Gen sets 2012LH (tons/ year) 2012YS (tons/ year) 2012Total (tons/ year) Total reduction ()
Inman 30 11.41 22.59 34.00 21 9.40 7.88 17.28 49.2
Tilford 11 6.46 8.28 14.74 9 5.32 1.98 7.30 50.5
Howells 1 0 0.75 0.75 0 0 0.75 0.75 0
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Mobile Emission
Roadway Length (mi.) 2002 (grams/day) 2012 (grams/day) Reduction ()
Bolton Rd. 1.496 1814 727 60
Marietta Rd. 2.727 1032 NA NA
Marietta Blvd. 3.712 6917 3413 51
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Local Facilities
Map ID Facility Name 2002 PM2.5 2002 PM10 2002 PM Source Type
1 GA Power Plant McDonough 145.9 332.5 494.6 Point
2 General Shale Brick Inc Plt 30 45 Point
3 LaFarge Bldg Materials, Inc 27.5 32.6 143.9 Point
4 RL Sutton WPCP 40.40 Point
5 Central Metals Co 8.00 Point
6 Vulcan Const Materials LP 46.00 Volume
7 Ennis Paint, Inc 9.61 Volume
8 Meadwestvaco Packaging 150 Point
9 Atlanta R M Clayton WPCP 21.1 Point

• Unit tons/yr

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Railyard and Mobile Source Contribution to
Annual PM2.5
Results are presented as 5-year average impact
(2002 emissions).
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Local Facility Contribution toAnnual PM2.5 at
FS8
Results are presented as 5-year average impact
(2002 emissions).
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2002 PM2.5 Contributions
Source FS 8 (mg/m3) E. Rivers (mg/m3)
Railyards 2.4533 0.1687
Mobile [phone]
Point Sources 2.3138 0.8858
TOTAL 5.2125 1.0687
Modeled Local Increment 4.1438 mg/m3 Measured
Local Increment 1.8 mg/m3
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Local Contributions at FS 8
Source 2002 (mg/m3) 2012 (mg/m3)
Railyards 2.4533 1.4070
Mobile [phone]
Point Sources 2.3138 2.3138
TOTAL 5.2125 3.9413
Railyard Reduction (Gensets) 1.0463 mg/m3
Mobile Reduction 0.2249 mg/m3
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Combining CMAQ and AERMOD Results
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Railyard Adjustment to DVF

• Percent () Reduction in Modeled Local Increment
  due to Gensets Railyard Controls
• (1.0463 mg/m3)/(4.1438 mg/m3) 25.25
• Reduction in Measured Local Increment due to
  Gensets Railyard Controls
• (1.8 mg/m3) (25.25) 0.4545 mg/m3

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Mobile Adjustment to DVF

• Percent () Reduction in Modeled Local Increment
  due to Mobile Controls
• (0.2249 mg/m3)/(4.1438 mg/m3) 5.43
• Reduction in Measured Local Increment due to
  Mobile Controls
• (1.8 mg/m3) (5.43) 0.0977 mg/m3

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Revised 2012 DVF

• Revised 2012 DVF including Local Gensets Railyard
  Mobile Controls
• Revised 2012 DVF 2012 DVF Local Reductions
• 15.3564 mg/m3 - 0.4545 mg/m3 - 0.0977 mg/m3
• 14.80 mg/m3
• Plan to redo calculations based on quarterly
  local increments quarterly RRFs from AERMOD.

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Yan Huang, Ph.D.Georgia Dept. of Natural
Resources4244 International Parkway, Suite
120Atlanta, GA 30354Yan.Huang_at_dnr.state.ga.us
404-363-7072
Contact Information