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2424 25562556

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(. .) 2/2554

4 2554 3/2554 29 2554

AERMOD CALPUFF 2/2556

18 2556 6/2556 29 2556

24 2556 (.) . 24 2557

24 2556

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4

1. 5

1.1 5

1.2 6

1.3 EIA

6

2.

9

3. EIA

15

4.

EIA 15

4.1 AERMOD 15

4.2 CALPUFF 16

17 18

18

1. (Model Selection) 18

2. (Emission Rate Determination) 18

3. (Source Information) 20

4. (Meteorological Information) 22

5. (Receptor) (Receptor and Terrain Elevation Information) 246. (Background Concentration) 25

7. (Total Impact) 25

8. 26

9. 26

10. 26

27

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1

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(..)2/2554 4

2554

AERMOD

3/2554 29 2554

1.

1.1

(1) (Environmental Impact Assessment EIA)

(2)

(3) /

(4)

(5)

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1.2

(1) (Model PredictedConcentration)

(2) (Background Concentration)

- (Monitoring) Background

Concentration

- Background Concentration

(3) (Cumulative Concentration) Model Predicted Concentration

Background Concentration

(4) (Ambient Air Quality Standards)

Cumulative Concentration

1.3

EIA

(1) .. 2539-2540 (NO2)

Industrial Source Complex Short-Term (ISCST)EIA

(

( .)

60

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EIA

.. 2541

NO2 512/ 60

( NO2 320/)

(2) .. 2540-2541

()

(.)

ISCST CALPUFF

() ..

3 (NO2) (SO2)

(Total Suspended Particulate TSP)

. (.) (.)

(3) 1/2550 ( ) 11

2550

CALPUFF

(Scatter Plot)

3

NO2 SO2TSP

(4) .. 2551

( AERMOD)

EIA ()

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(EIA)

AERMOD U.S. EPA Preferred Model

50 (Near-field Applications) 9 .. 2549 .

EIA .. 2550

.

(5) 6/2550 9

2550

80/20

.

.

(6) 2/2554 4

2554 .

CALPUFF AERMOD .

CALPUFF 1

(Maximum Ground Level Concentration Max. GLC) NO2 SO2

8 4

AERMOD

EIA

(7) 1/2554

27 2554

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2.

2.1 (NOx) SO2 ..

2550- 2555 .

80/20

(1) NOx 265 (8,357 ) 11

.. 2550 ( .. 2550 2,480 .. 2555

2,215 )

(2) SO2 262 (8,262 ) 11

.. 2550 ( .. 2550 2,398 .. 2555

2,136 )

2.2 NO2(NOx as NO2)

.. 2550-2555 1

(1) 1 19 5

0.015-0.0995 ( 0.17 ) 58 2

(2) 1 2 5 0.008-0.0149

( 0.03 ) 50 3

2.3 SO2 ..

2550- 2555 1

(1) 1 9 5 0.009-0.108 ( 0.30 ) 36

4

(2) 24 8 5

0.0040-0.0160 ( 0.12 ) 13

5

(3) 1 2 5 0.002-0.0076

( 0.04 ) 19 6

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2.4 U.S. EPA NO21

SO2 1 12 .. 2553 23 2553

(Overly Conservative) (1) Applicability of Appendix W Modeling Guidance for the 1-hr NO2 National

Ambient Air Quality Standard (28 2553)

(2) General Guidance for Implementing the 1-hr NO2 National Ambient Air

Quality Standard in Prevention of Significant Deterioration Permits, Including an Interim 1-hr

NO2Significant Impact Level (28 2553)

(3) General Guidance for Implementing the 1-hr SO2 National Ambient AirQuality Standard in Prevention of Significant Deterioration Permits, Including an Interim 1-hr

SO2Significant Impact Level (23 2553)

(4) Additional Clarification Regarding Application of Appendix W Modeling

Guidance for the 1-hr NO2National Ambient Air Quality Standard (1 2554)

2.5

(1) Colorado Modeling Guideline for Air Quality Permits (2548), Colorado

Department of Public Health and Environment

(2) Air Quality Modeling Procedures (2549), Louisiana Department of Environmental

Quality

(3) Air Dispersion Modeling Guideline for Ontario (2552), Ontario Regulation

419/05: Air Pollution-Local Air Quality (the Regulation)

(4) Air Dispersion Modeling Guidelines for Oklahoma Air Quality Permits (2554),

Oklahoma Department of Environmental Quality

(5) Modeling Compliance of the 1-hr NO2NAAQS (2554), California Air Pollution

Control Officers Association

(6) Air Dispersion Modeling Guidelines for Non-PSD, Pre-Construction Permit

Applications (2556), Iowa Department of Natural Resources

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1

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2 NO2 1

3 NO2 1

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4 SO2 1

5 SO2 24

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6 SO2 1

2.6 AERMOD 2555 Journal of theAir and Waste Management Association (JAWMA) 62 8 NO2and SO2DispersionModeling and Relative Roles of Emission Sources over Map Ta Phut Industrial Area, Thailand

, , , PVMRM NO2 (Overly Conservative)

2.7 3

(.. 2552-2554) 1,2 1,3

7

Best Available Control Technology

(High-Temperature Combustion)

Recuperative Thermal Oxidizer Regenerative Thermal Oxidizer

95-99 NOx

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NOx

3.

EIA

(

(Surface Data) (Upper Air Data))

Cumulative Concentration

(Max. GLC)


NO2/NOx Conversion 0.75 1

(Overly

Conservative)

4.

EIA

4.1 AERMOD

AERMOD steady-state plume dispersion U.S. EPA Preferred regulatory model

50

(Near-field)

AERMOD

- (Point, Area and VolumeSources)

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- - (Rural and Urban Areas)- (Complex Terrain)-

- Hazardous Air Pollutant (HAPs)4.2 CALPUFF

CALPUFF Non-steady-state Lagrangian Puff dispersion U.S. EPA Preferred regulatory model

50-200

(Far-field) CALPUFF

Near-field U.S. EPA

- complex wind CALPUFF

- AERMOD Preferred near-field regulatory model CALPUFF

- Alternative model Near-field (1) Scientific peer

review

(2)

(3)

(4) (Performance Evaluation) Bias Underestimates

(5) (Protocol)

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2

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EIA

(Standardization of Air

Dispersion Modeling Application)

1. (Model Selection)

1.1 AERMOD U.S. EPA

( 50 )

1.2 CALPUFF U.S. EPA

( 50 )

-

(Complex Wind) U.S. EPA

(Case-by-Case)

2. (Emission Rate Determination)

2.1

U.S. EPA NOx SO2

/

(Maximum Ground Level Concentration)

(Significant Impact Level SIL)

(1) SIL

80

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(2) SIL

80

80/20

(Maximum Actual Emission) (Emission Offset) (Emission Trading)

/

80

2.2

NOx SO2 80

80/20 (Maximum Actual Emission) (Emission Offset) (Emission

Trading) /

80

2.3

80 /

(1)

80/20 (Stack)

20 (Fugitive)

(2)

2.4

2.5

80

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10 20 30 40 50 60

2.6

(Best Available Control Technology,BACT) / (Best Practices)

U.S. EPA

(Case-by-Case)

3. (Source Information)

3.1 (Downwash)

3.2 (Point Source)

() () ()

() () ()

( 25 1 / 7

) ( /

) ()

3.3 (Area Source) (Volume Source)

3.4

50 75

3.5

3.6

500

(x/8760 )

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3.7 (Maximum Actual Emission)

CEMs (Stack Tests)

(Mass Balance) (Emission Factor)

3.8 (Modeling Domain)

/(Total

Impact Analysis) 80/20

3.9 2

(1) (2) 65 Good

Engineering Practice (GEP) Guideline for Determining of Good Engineering Stack Height

U.S. EPA 1) 65 2)

(HB) 1.5 (HB)

(Projected Width)

3.10

0.001 1

3.11 (Flare)

1,273 20 eD =

H4

10162.3

() e

H = ( ) 478.031057.1 HHs

+ H

() Hs ()

3.12 (Fugitive)

(Area Source) 1 273

0.001

3.13

(Building Downwash) Building Profile

Input Program with Plume Rise Enhancement (BPIP-Prime) U.S. EPA

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3.14 (Conversion Factor) 1

1

U.S. EPA

(1) 1 Default Conversion 0.8 1 1

PVMRM OLMGROUP NO2/NOx

Default 0.5

(2) 1 Default Conversion 0.75

1 1 PVMRM OLMGROUP NO2/NOx

Default 0.5

4. (Meteorological Information)

4.1 (Station Number) ()

(Latitude/Longitude)

4.2 (Surface Meteorological Data) 1

(Onsite/Online) 3 3

(Wind Rose)

4.3

(1) 4

(Step-wise Linear Interpolation)

4

(2) 3

(Step-wise Linear Interpolation)

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(2.1) 1 4 90

1 4 0 2 1 3

4

(2.2) 1 4 90 1 4 0 (Step-wise

Linear Interpolation)

4.4 (Upper Air Met. Data) 1

(Onsite/Online) 3

3

4.5 1

(Linear Interpolation)

1

4.6 10

(Meteorological Tower)

10

4.7 Auer

4.8 Surface Roughness

Length Bowen Ratio Albedo

2 - -

AERMET AERSURFACE Air Dispersion

Modeling Guideline for Ontario

(1) Surface Roughness Length

3 8 ()

(2) Bowen Ratio 10 x

10

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(3) Albedo 10 x 10

5. (Receptor) (Receptor and Terrain ElevationInformation)

5.1 Universal Transverse Mercator (UTM)

WGS84

5.2 25 x 25 (

)

10 x 10 () X-Y(Cartesian)

(Variable Grid Resolution)

(1) 1.5 (Fence Line)

100

(2) 1.5-3 250

(3) 3 500

5.3 /

Digital Elevation Model (DEM) 1-arc second (30

x 30 ) Seamless Shuttle Radar Topography Mission (SRTM)

3-arc second (90 x 90 )

5.4 (Discrete Receptor)

(Sensitive Receptor)

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6. (Background

Concentration)

6.1 (Online Monitoring Station)

3 (Averaging Time) 75

6.2

(Averaging Time) 4

7 2 (Prevailing Winds) - -5-7

7. (Total Impact)

7.1

(1 25 )

5.6

7.2 /

(Total Impact) (Exceedance)

7.3

(Total Impact)

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8.

(Online Monitoring Station)

1

9. (Input) (AERMOD/AERMET/AERMAP

CALPUFF/CALMET/CALPOST) (Output)

10.

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(Significant Impact Level (SIL))

(SIL) :

1 24 1 (NO2) 12.8 - 0.57(SO2) 31.2 4.11 1

SIL General Guidance for Implementing the 1-hr NO2 National

Ambient Air Quality Standard in Prevention of Significant Deterioration Permits, Including an

Interim 1-hr NO2 Significant Impact Level (28 2553) General Guidance for

Implementing the 1-hr SO2National Ambient Air Quality Standard in Prevention of Significant

Deterioration Permits, Including an Interim 1-hr SO2Significant Impact Level (23 2553)

SIL 1 4

SIL 24 1.37

SIL 1 1

_____________________________

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