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EAC Emission Reduction Measures

Austin, TX MSA Area

 

 

  Description of the Model  Runs and Results    

 

Emission Reduction Strategies Ozone Isopleths Animations

RUN#1: I/M only

RUN#2: All CAAP (EAC) Controls

RUN#3:TERP

RUN#4: Area Source VOC Reductions

RUN#5 :EGU Point Source Reductions

NOTE: Run#1 excludes I/M in Hays Co; Run#2 excludes I/M in Hays Co and Low RVP Measure

Sensitivity Runs

Ozone Isopleths Animations

RUN#6: Alcoa Reductions (90% Reduction)

RUN#7: Hays County I&M

RUN#8: No TX Lehigh & Austin White Lime

RUN#9: Doubling VOC from Point Sources

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Description of the Model Runs

 

Strategy Model Run

Emission Reduction Measure

1

I/M only (without Hays County)

2

All State Assisted Measures (with TERMs) but without I&M in Hays County and without low Reid Vapor Pressure gasoline

3

TERP only (modeled at 2 tpd reduction)

4

All measures with VOC reductions and no NOx reductions

 Low Emission Gas Cans

Stage I Vapor Recovery

Degreasing Controls

Autobody Refinishing

Cut Back Asphalt

Low Reid Vapor Pressure Gas

5

Point Sources Only

Model Results for Emission Reduction Measures Applied to Base 2007 EI with the September 1999 Episode

Control Strategy Run

Monitor site

1999 design value

Relative reduction factor

Estimated design value for 2007 *

Attainment of the 8-hour standard?

1

Audubon

89 ppb

0.944

84.02

Yes

Murchison

87 ppb

0.944

83.13

Yes

2

Audubon

89 ppb

0.937

83.39

Yes

Murchison

87 ppb

0.934

81.26

Yes

3

Audubon

89 ppb

0.946

84.19

Yes

Murchison

87 ppb

0.947

82.39

Yes

4

Audubon

89 ppb

0.946

84.19

Yes

Murchison

87 ppb

0.945

82.22

Yes

5

Audubon

89 ppb

0.944

84.02

Yes

 

Murchison

87 ppb

0.943

82.04

Yes

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