georgia environmental protection division atlanta pm2.5 attainment modeling with aermod yan huang,...

Georgia Environmental Protection Division

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


Outline

• Background

• Local AERMOD Modeling

• Updated 2012 DVF Projections


Background


Objective

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

Demonstrate attainment in 2012?


F.S.#8

E.Rivers

Jeff. St.

2.2mile

2.9mile

Forest Park

South-DeKalb

Doraville Health

East Point

Location of Core Urban Sites


14

15

16

17

18

19

20

21

22

23

24

1999 2000 2001 2002 2003 2004 2005 2006

An

nu

al P

M2

.5 (

ug

/m3

)

Fire Station #8

E. Rivers

Jefferson Street

Annual Average PM2.5 (Stations <3 miles from Fire Station #8)


Fire Station #8

Railyard and Fire Station #8


CMAQ PM2.5 Projections

AIRS ID County 2002 DVC 2009 DVF 2012 DVF13-063-0091 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 g/m3


CMAQ 12-km Grid Cell


AERMOD Modeling for Local Sources


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


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

Georgia Environmental Protection DivisionProvided by B. Kim, GA EPD

AERMOD Modeling Domain


Locomotive Activity

• Two Class I railroad companies –Norfolk Southern–CSX Transportation

• Two locomotive activity categories–Line-haul –Switching


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


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


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


Local FacilitiesMap 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


Railyard and Mobile Source Contribution* to Annual PM2.5

*Results are presented as 5-year average impact (2002 emissions).


Local Facility Contribution* toAnnual PM2.5 at FS#8

0.0

0.5

1.0

1.5

2.0

2.5

Total GaPow er ShaleBrick

LaFarge RL Sutton Ctrl Metal VulcanQuarry*

EnnisPaint*

Mead Pkg RMClayton

PM

2.5

(g

/m3

)

*Results are presented as 5-year average impact (2002 emissions).


2002 PM2.5 Contributions

Source FS #8

(g/m3)

E. Rivers (g/m3)

Railyards 2.4533 0.1687

Mobile 0.4454 0.0142

Point Sources 2.3138 0.8858

TOTAL 5.2125 1.0687

Modeled Local Increment = 4.1438 g/m3 Measured Local Increment = 1.8 g/m3


Local Contributions at FS #8

Source 2002

(g/m3)

2012

(g/m3)

Railyards 2.4533 1.4070

Mobile 0.4454 0.2205

Point Sources 2.3138 2.3138

TOTAL 5.2125 3.9413

Railyard Reduction (Gensets) = 1.0463 g/m3 Mobile Reduction = 0.2249 g/m3


Combining CMAQ and AERMOD Results


Railyard Adjustment to DVF

• Percent (%) Reduction in Modeled Local Increment due to Gensets Railyard Controls= (1.0463 g/m3)/(4.1438 g/m3) = 25.25%

• Reduction in Measured Local Increment due to Gensets Railyard Controls= (1.8 g/m3) * (25.25%) = 0.4545 g/m3


Mobile Adjustment to DVF

• Percent (%) Reduction in Modeled Local Increment due to Mobile Controls= (0.2249 g/m3)/(4.1438 g/m3) = 5.43%

• Reduction in Measured Local Increment due to Mobile Controls= (1.8 g/m3) * (5.43%) = 0.0977 g/m3


Revised 2012 DVF

• Revised 2012 DVF including Local Gensets Railyard & Mobile Controls= Revised 2012 DVF = 2012 DVF – Local

Reductions

= 15.3564 g/m3 - 0.4545 g/m3 - 0.0977 g/m3

= 14.80 g/m3

• Plan to redo calculations based on quarterly local increments & quarterly RRFs from AERMOD.


Yan Huang, Ph.D.Georgia Dept. of Natural Resources

4244 International Parkway, Suite 120Atlanta, GA 30354

[email protected] 404-363-7072

Contact Information

georgia environmental protection division atlanta pm2.5 attainment modeling with aermod yan huang,...

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