Download - 2000/8/15 황령산에서 바라본 연제 / 동래 일대 대기질 및 배출 모델링 Air Quality and Emission Modeling 2002.4 김 동 영김 동 영
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2000/8/15 황령산에서 바라본 연제 / 동래 일대
대기질 및 배출 모델링Air Quality and Emission Modeling
2002.4
김 동 영
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Outline
Air Quality Management Process Air Quality Management Cycle
Roles of Air Quality Model
Air Quality Modeling Evolution of Air Quality Modeling System
USEPA’s Third-Generation “One-Atmosphere” Modeling Tool:
Models-3/CMAQ System
Applications of Models-3/CMAQ System
Air Pollutant Emission Modeling Methodology of Emission Estimation
Emission Inventory Database and Emission Modeling
Applications
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Air Quality Management Process
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EstablishGoals
EvalualteResults
What ReductionsAre Necessary?
How toAchive
ImplementImplement
⇒ Science(Criteria) ⇒ Law(NAAQS)
⇒ Monitoring ⇒ Modeling
⇒ Monitoring ⇒ Inventories ⇒ Modeling ⇒ Risk and Econ. Analysis
⇒ National Rules & Programs ⇒ States Plan
⇒ States & Local Rules ⇒ Permits ⇒ Compliance & Enforcement
Air Quality Management Cycle
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Air Quality Management Process under CAA/NAAQS(U.S)
Air Quality ModelingAssement
Air Quality ModelingAssement
Air QualityMonitoringAir QualityMonitoring
EmissionInventoryEmissionInventory
Control Strategy &Risk Assessment
Control Strategy &Risk Assessment
Rulemaking &ImplementationRulemaking &
Implementation
Cost/Benefit analysis& Optimizaiton
Cost/Benefit analysis& Optimizaiton
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대기오염관리와 대기질모델링Schematic Diagram of Air Quality Management
Goal(Ozone, Acid rain, ...)
$Policy
Decision
Control StrategyEvaluation
MONITORING
Modeling PerformanceEvaluation
MODLEING
Emission - Meteorology - Chemistry - Deposition
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MeteorologicalModel
Air QualityModel
EmissionModel
Decision supportinput data
Air qualityinput data
Emissionsinput data
Meteorologicalinput data
DecisionSupportSystem
Dong Young Kim
EmissionChanges
Socio-EconomicFactors
Components of a Modeling Systemfor Air Quality Management
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Air Quality Modeling
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Roles of Air Quality Models
• Research tool
Understanding of pollution formation process
• Regulatory tool Current AQ Assessment & future AQ projection Control strategy development
Required by Law in the U.S
Clean Air Act Amendments (CAAA) of 1990
U.S. EPA’s Regulatory Models
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Physical model : small scale, lab. presentations of the phenomena (wind tunnel, water tank ...)
Mathmatical model : a set of anlytical/numerical algorthms that describe the physical and chemical aspects of the problem
Dong Young Kim
Eulerian modelLaglangian modelGaussian model
Deterministic models based on the fundamental mathematical descriptions of atmpospheric precesses, in which effects(i.e., air pollution) area generated by cause(i. e., emission)
Statistical models based upon semiemperical statistical relations among available data and measurements
Air Qaulity Management - The Tool :Mathematical Modeling
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A. Henderson-Sellers, KMcGuffieA Climate Modeling Primer, John Wiley & Sons, 1987p. 2
Dong Young Kim
Dimensions of Atmospheric Dynamics
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(Advection at 4m/s)
10-2 10-1 10-0 101 102 103 104 105 106 107 108 109 1010
10-3
10-2
10-1
1
00
101
1
02 1
03
104
1
05 1
06
107
1
08
109
Transport(m)
Lif
etim
e(se
c)
year
3 month
week
month
day
hour
minite
OH
HO2
Photostationary state
NO3
O3NO2
NOPAN
HONOH2O2
Methane
COAcetone
Benzene
Methanol
Isoprene
PropeneAcetaldehyde
SO2 troposphere
Robin L. Dennis, Daewon W. Byun, Joan H. Novak, Kenneth J. Galluppi, Carlie J. Coats, The next generation of integrated air quality modeling: EPA's Models-3, Atmos. Environ. 30(12): 1925-1938(196)
Dong Young Kim
Temporal and Spatial Scale of Chemical Lifetime and Transport
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Scale of Known Meteorological Phenomena
Robin L. Dennis, Daewon W. Byun, Joan H. Novak, Kenneth J. Galluppi, Carlie J. Coats, The next generation of integrated air quality modeling: EPA's Models-3, Atmos. Environ. 30(12): 1925-1938(196)
100 101 102 103 104 105 106 107 108
100
1
01
102
1
03
104
1
05
1
06
107
1
08
m
s e c
VII. -plane approximationVI. neglecting the Coliolis forceV. quasi-geostrophic assumptionIV. hydrostatic assumptionIII. incompressible assumptionII. anelastic assumptionI. Navier-Stokes Eqa.
micro- micro- micro- meso- meso- meso- macro
LONG WAVES
Rossby waves
SYNOPTIC WEATHER
GRAVITY WAVES
SMALL SCALE TURBULENCE
SOUND WAVES
Power spectrum
of horizontal wind spe
ed
baroclinic waves
frontshurricanes
cloud clusters
inertial waveslow level jetsquall line
plumes
dust devils
thunderstorms
short gravity waves
deep convection
tornados
Dong Young Kim
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A. Henderson-Sellers, KMcGuffieA Climate Modeling Primer, John Wiley & Sons, 1987p. 135
Dong Young Kim
AtmosphericDynamics
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A. Henderson-Sellers, KMcGuffieA Climate Modeling Primer, John Wiley & Sons, 1987p. 135
Dong Young Kim
Governing Equation of Air Quality Dynamics
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SRz
cEz
zy
cEy
yx
cEx
xcw
zcv
ycu
xt
C)()()()()()(
Advection Diffusion Rxns Source& Sink
C : Concentration(ML-3)t : Time(T)u, v, w : Wind vector(LT-1)Ex, Ey, Ez : Diffusion coefficient vector(L2T-1)R : Reaction rate(ML-3T-1)S : Source and sink(ML-3T-1) (emission and deposition)
Dong Young Kim
Air Quality Diffusion Equation : Conservation of mass
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Dong Young Kim
MM5The Fifth-Generation NCAR/Penn State Mesoscale Model
http://www.mmm.ucar.edu/mm5/
•Prognostic vs Diagnostic•GCM and …
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Dong Young Kim
CSU RAMSColorado State University Regional Atmospheric Modeling System
http://rams.atmos.colostate.edu/
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Evolution of Air Quality Models
1st-generation AQM (1970s - 1980s) Dispersion Models (e.g., Gaussian Plume Models-ISC)
Photochemical Box Models (e.g. OZIP/EKMA)
2nd-generation AQM (1980s - 1990s) Photochemical Grid Models (e.g., UAM, RADM)
3rd-generation AQM (1990s - 2000s) Community-Based ‘One-Atmosphere’ Modeling System
(e.g., U.S. EPA’s Models-3/CMAQ)
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First-Generation Air Quality Models
Gaussian Dispersion ModelISC3, CALPUFF, AERMOD
(for primary pollutants)
Photochemical Box ModelOZIP/EKMA(for ozone)
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Eulerian Grid ModelsUAM, RADM,
REMSAD, ROM
2nd-Generation Air Quality Models
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Grid sheme and treatment of atmospheric processs of UAM
Dong Young Kim
U. S. EPA, User’s guide for the Urban Airshed Model(CB-IV),EPA-50/4-90-007A, 1990
3-D Modeling Scheme
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A. Henderson-Sellers, KMcGuffieA Climate Modeling Primer, John Wiley & Sons, 1987p. 138
Dong Young Kim
3-D Modeling Scheme
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Examples of 2nd-Generation Air Quality Models
UAM
Photochemical Grid Models
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Modeling Atmospheric Chemistry CBM-IV, RADM2
CBM-IVCarbon Bond Mecanism, Version 4
Gas phase chemisrty for Ozone
Lumped approach
(23 species, 80 rxn eq.)
RADM2Regional Acid Deposition Model
Multi-phase chemistry
Explicit approach
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Third-Generation Air Quality Models:U.S.EPA’s Models-3/CMAQ
“Open-Access” Community-Based Models :
User-friendly, Modular, Common modeling framework
for scientists and policy-makers.
Advanced Computer Technologies :
High performance hardware and software technologies
(Cross-platform, GUI, distributed computing, visualization
tools, etc.).
“One-Atmosphere” Modeling : Multi-pollutant (Ozone, PM, visibility, acid deposition, air toxics, etc.)
Multi-scale.
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Air Toxics
PM
Acid Rain
Visibility
Ozone
Mobile Sources
Industrial Sources
Area Sources
(Cars, trucks, planes, boats, etc.)
(Power plants, refineries/ chemical plants, etc.)
(Residential, farming commercial, biogenic, etc.)
NOx, VOC,PM, Toxics
NOx, VOC, SOx, PM,Toxics
NOx, VOC,PM, Toxics
Chemistry
Meteorology
Atmospheric Deposition
Climate Change
One-Atmosphere Modeling: Models-3/CMAQ
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Smog = Ozone + PM(fine)
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Acid Rain(NO3- deposition)
Water Quality(Nitrogen deposition,
Lake Acidification)
NOx
Visibility(Fine PM)
(NOx + VOC + hv) -->
Ozone(NO3-, NH4+)
PM
NOx-Related Air Quality Issues
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SOx-Related Air Quality Issues
Acid Rain(SO42- deposition)
SOx
(Fine PM)
Visibility
(SO42-, NH4+) PM
Water Quality(Lake acidification,
Toxics deposition)
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..OH Role in Pollutants Formation : One-Atmosphere
AirToxics
Ozone
AcidRain
Visibility
PM2.5
Water Quality
..OH
NOx + VOC + OH + hv ---> O3
SOx [or NOx] + NH3 + OH ---> (NH4)2SO4 [or NH4NO3]
SO2 + OH ---> H2SO4
NO2 + OH ---> HNO3
VOC + OH --->Orgainic PM
OH <---> Air Toxics(POM, PAH, Hg(II), etc.)
Fine PM(Nitrate, Sulfate, Organic PM)
NOx + SOx + OH (Lake Acidification,
Eutrophication)
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Models-3/CMAQ Technology Transfer & Applications
Models-3/CMAQ Release (annual since 1998) Version :
Cray Supercomputer and Unix Workstations
PCs (Linux OS): recommended
Technology Transfer & User Support
Help Desk & Model-3 User E-mail List Server
Training & User Workshop
CMAS Modeling Support Center
http://www.epa.gov/asmdnerl/models3/
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MeteorologyProcessor
EmissionProcessor
Air QualityModel
or RAMS
PAVE
Models-3/CMAQ System Framework
or SMOKE
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CMAQChemistry Transport Model
Aerosol
Plumein
Grid
Gas-phaseChemistry
Diffusion
Photolysis rates
J PROC
WRFRAMSMM5
MeteorologicalModel Ouput
MCIP
SMOKE
EmissionsProcessing
ECIP
MEPPS
Advection
CloudAqueousProcess
PDM
ICON/ BCONInit ial/ boundaryconditions
Processanalysis
Models-3Computational
Framework
Photolysis
(Courtesy of Daewon Byun, USEPA/ORD)
Science Process Components in Models-3/CMAQ
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XADV
YADV
ZADV
ADJCON
HDIFF
VDIFF
CHEM
AERO
CLDPRC
COUPLE
VDIFF
PING
HDIFF
ZADV
YADV
XADV
ADJCON
Symmetric SCIPROC
DECOUPLE
tsync
tsync / 2
DECOUPLE
XADV*
YADV*
ZADV
ADJCON
HDIFF
DECOUPLE
VDIFF
CHEM
AERO
CLDPRC
COUPLE
PING
Asymmetric SCIPROC
* AlternatingXADV and YADV callsfor each asymmetricSCIPROC call
CGRID_MAP
INITSCEN
ADVSTEP
COUPLE
SCIPROC
SynchronizationTime Step
OutputTime Step
CMAQ-DRIVER
tout
tsync
tsync
tsync
(Courtesy of Daewon Byun, USEPA/ORD)
Science Modules Flow Charts in Models-3/CMAQ
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U. S. EPA, Models-3 conceptsAdaptability
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Models-3/CMAQ Demo Simulation : PM 2.5
Fine PM Species (PM2.5)
Sulfate, Nitrate, Ammonium,Secondary anthropogenic & biogenic organics,Primary elementary carbon,Unspeciated primary aerosols
Coarse PM Species (PM10)
Fugitive dustSea saltUnspeciated anthropogenic aerosols
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Models-3/CMAQ Demo Simulation : Visibility
Visual Range Parameters:
Deciview (dv) : dV = 10 ln (b / 0.01), b [km-1] : extinction coeff.
Koschmieder Visual Range :
Vr = 3.91 / b [km]
dV Vr [km] km-1]
60 1.0 4.040 7.2 0.5520 53 0.0710 144 0.03 0 391 0.01
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CMASCMAQ
Community MultiscaleAir Quality (CMAQ)Modeling System :
• First release 07/1998;• Recent release 06/2001;• Ready to use for O3, PM, visibility, acid rain; • Currently undergoing PM evaluation and air toxics development;
Community Modelingand Analysis System(CMAS) :
Year 2001 - 2004 plan :• Outreach to user community• Provide support to users through Training & Support Center• Hold Models-3 training and workshop
Multi-Media Integrated Modeling System (MIMS):
Year 2000 - 2008 plan :• Include Multi-media and cross-media pollutants;• Common framework for airshed and watershed modeling;
MIMS
Models-3 Future
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Dong Young Kim
Schematic Diagram of Multi-Media Environmental Modeling
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F : the vertical dry deposition flux(M/L2) vd : the deposition velocity(L/T) C : the concentration of air(M/L3)
F = -vdC1/vd = rt = ra + rb + rc
Dong Young Kim
Dry Deposition Modeling
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Deposition plate : a 13 inch greased(L-Apiezon) Mylar strip, which is mounted on to a clean PVC plate. have a sharp leading edge(to induce laminar flow). are kept pointing into the wind(to avoid reentrainment). should be covered whenever it rains or snows(used the moisture sensors for automation).
Sampling time Short-term samples : 8~72 hrs Long-term samples : 1~4 weeks
Dong Young Kim
Dry Deposition Sampling
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TSP, High volumn sampler PM10, High volumn sampler Dichotonous PM sampler
Dong Young Kim
Automated aerosol sampler
polar zone
Arerosol Samplers
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Dong Young Kim
Deposition Velocity &Particle Size
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Dong Young Kim
Computing Resource of NCSC
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Air Pollutants Emission Modeling
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배출목록의 활용
• 대기질 관리 정책의 수립 및 평가• 기존 배출원 관리 및 신규 배출원 평가• 대기질 모형체계의 운영• 오염 예보체계 운영• 환경영향평가• 측정망 설계 및 평가• 규제 이행여부 평가• 배출부과금 산정
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U.S. EPA’s NEI & AIRS
http://www.epa.gov/airs/
NEI(national emission inventory)
• input from State and local air agencies
• National Emission Trends (NET) database, Criteria pollutant emissions data (1985 ~ )
• National Toxics Inventory (NTI) database, Hazardous air pollutants emissions data (1993 ~)
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U.S. EPA’s AIRS
http://www.epa.gov/airs/
AIRSArerometric Information
Retrieval System
AIRSArerometric Information
Retrieval System
GCSGeo-common SubsystemGCS
Geo-common Subsystem
AQSAir QualitySubsystem
AQSAir QualitySubsystem
AFSFacility
Subsystem
AFSFacility
Subsystem
AMSArea/MobileSubsystem
AMSArea/MobileSubsystem
EmissionsData
EmissionsData
ComplianceData
ComplianceData
PermittingEnhancementsPermittingEnhancements
AGGraphicsAG
Graphics
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Emission Factor and Inventory Group Factor and inventory contact News & general information Report
Emission Factor and Inventory Group Factor and inventory contact News & general information Report
AP-42 and Other Estimation references AP-42 L&E documents(air toxics) Source classification code
AP-42 and Other Estimation references AP-42 L&E documents(air toxics) Source classification code
Emission Estimation Software Area source analysis program DESPERATE(Air toxics model) FIRE Fugitive dust emissions Inventory projection software SPECIATE PC-BEIS TANKS others
Emission Estimation Software Area source analysis program DESPERATE(Air toxics model) FIRE Fugitive dust emissions Inventory projection software SPECIATE PC-BEIS TANKS others
Emission Inventory Guidance General inventory guidance Air toxics Criteria pollutants Greenhouse gas
Emission Inventory Guidance General inventory guidance Air toxics Criteria pollutants Greenhouse gas
Emission InventoryImprovement Program Point source Area source Mobile source Biogenic source Data management Coding Quality assurance State/Local interaction
Emission InventoryImprovement Program Point source Area source Mobile source Biogenic source Data management Coding Quality assurance State/Local interaction
National Inventory Data & Projection Ozone transport Emission trend procedure
National Inventory Data & Projection Ozone transport Emission trend procedure
http://www.epa.gov/ttn/chief/U.S. EPA’s CHIEF
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http://www.eea.eu.inthttp://www.dmu.dk
CORINAIRCO-ordination of Information on AIR emissions
EU, EEA’s CORINAIR
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국내 배출목록 관련 현황
• 환경부 , 국립환경연구원 , 배출량 연간 보고서• 환경부 , 국립환경연구원 , 1~5 종 배출업소 조사 자료
• 대형 5,000 업소 , 전체 30,000 업소• 대기보전학회 , 서해안권 배출목록 작성 연구 , 1997• 대기질 규제지역의 ‘대기질 실천계획’ 수립시
지방자치단체 단위로 작성된 배출목록 자료• 환경부 , Toxic Release Inventory, 80 여종
화학물질배출량 보고제 (OECD 이행 규정 )• 환경부 , 다이옥신류 배출량 산정기법 및 DB 개발
• ( 스톡홀름협악 , 개발중 )• 환경부 , 대기정책지원시스템 ( 개발중 , 미공개 )
• http://www.me.go.kr/gita/daegi/main.htm
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환경부 대기정책지원시스템 1
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환경부 대기정책지원시스템 2
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Source Classification
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Source Classification(CORINAIR, 대기정책지원시스템 )
about 500 categories
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Source Classification(U.S.EPA)
about 9,400 categories
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General Approach to Emission Estimation
Bottom-up approach : Point source, Industrial process
Top-down approach : Mobile, Area, …..
Emission Modeling : Storage tank, Landfill ….
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배출원별 접근방법
점배출원 : 환경부 배출업소 조사표 , 전국 약 3 만여개 시설 전수조사 DB
Bottom-up approach
면배출원 : Top-down approach
이동배출원 : Top-down approach
자연배출원 : 식생 , 토양 등 - Emission Modeling
Ex) U.S. EPA’s BEIS2
기타배출원 Solvent use - Painting, Printing, Laundary
: Top-down approach
Storage Tank, Landfill site : Emission Modeling
Ex) U.S. EPA’s TANKS
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활동도와 배출계수 (Activity level and Emission Factor)
활동도 (Resolution) 배출계수
면 및 점배출원 연료연소 -소비량점배출원 공정당 생산량이동배출원 , 자동차 -주행거리이동배출원 , 항공기 -기착횟수용제사용에 의한 VOCs 배출 -소비량자연배출원 식생 - 식생밀도…
단위연소량당 배출량 (g/ton)단위생산량당 배출량 (g/ton)단위 주행거리당 배출량 (g/km)단위 기착시 배출량 (g/ 회 )단위소비량당 배출량 (g/ton)단위면적당 배출량 (g/m2)…
배출원별 배출계수 개발 기존 연료연소 배출계수
환경부 차세대 환경기술개발U. S.EPA’s AP-42, Mobile5
각종 통계자료 등배출원별 활동도에 대한 자료
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해상도 및 대상물질해상도 (Resolution) 대상물질
규제물질
SO2, NO2, PM, CO)
오존선구물질 (VOCs)
speciated VOCs
온실개스 , 오존층파괴물질
유해대기오염물질 (HAPs)
공간적 해상도 국가단위 행정구역단위 ( 광역시도 , 시군구 ) 격자단위 (1, 2, 4, 100 km...)
시간적 해상도 년간 월별 ( 계절별 ) 일별 ( 주중 , 주말 ) 시간별
Hourly, Gridded, Speciated …Emission Modeling Air Quality Modeling …
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Emission Modeling forGridded, Hourly, Speciated Data
Spatial allocation activity level database : spatial information
Temporal allocation activity level database : temporal information
Chemical speciation Chemical speciation database : U. S. EPA’s SPECIATE(VOC, PM) database
Dong Young Kim
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UncertaintyModel
EmissionProjection Model
Normalized Emission EstimationModel
Anthropogenic Point source Area source Mobile source OthersNatural source Biogenic
EmissionInventoryDatabase
Domain Definition Spatial Domain Temporal Domain Resolution
SpatialAllocation
TemporalAllocation
ChemicalSpeciation
GIS database Spatial Information
Spatial Modeling
SPECIATEDatabase
Activity LevelDatabase
ModelApplication
Report
Post-processing
Pre-processing
Pre-processing
배출 모델링 개요The schematic diagram of emission modeling system
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Dong Young Kim
Scheme U.S. EPA’s Emission Modeling System(EMS) for UAM
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SMOKE
InventoryImport
GriddingMatrix
TemperaturePreprocess
EmissionFactor
TemporalAllocation
SpeciationMatrix
LayerFractions
ControlMatrix
ElevatedSource ID
Land UseImport
BiogenicHourly
Adjustment
AllMerge
InventoryMerge
Sparse Matrix Operator Kernel Emssions Modeling Systemfor Models3 by U.S. EPA’s NEI & MCNC
BB
P P
M M
P
M
B
Point only
Mobile only
Biogenic only
Dong Young Kim
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Spatial Allocation
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TemporalAllocation
Monthly allocation
Daily allocation
Hourly allocation
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수도권 배출량 계산예
Dong Young Kim
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수도권 점배출원 배출량 분포
Dong Young Kim
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배출원별 기여도 분석
Dong Young Kim
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수도권 배출분포( 점배출원 제외 )
Dong Young Kim
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경기도 배출분포( 점배출원 제외 )
Dong Young Kim
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QA/QC
1) 정성적 방법 Delphi methods Rating and/or Ranking system
2) 정량적 방법 정량적 검증의 어려움 배출량과 측정 농도를 직접 비교하는 방법 NMHC/NOx, CO/NOx ratio 07:00-08:00, 08:00-10:00, 07:00-09:00(LST) 대기질 모형을 이용하는 방법 (Rolling back)
Dong Young Kim
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배출목록시스템의 발전 방향 1
배출계수 문제 - 연료연소 부문 보완 - 자동차 모드별 운행에 의한 배출계수 산정 - 산업공정부분 활동도 자료의 주기적인 조사 및 DB 화 시공간적 해상도 향상 - Urban/Local/National/Regional domain definition 환경정보체계 (Environmental Information System) 의 필요성 - 지형 , 토지이용 DB
- 대기질 , 기상관측 자료 DB
정확도 향상을 위한 QA/QC 과정 확립 배출량 예측 (Projection)
유해대기오염물질 (HAPs), 온실개스 등으로 확장 Dong Young Kim
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배출목록시스템의 발전 방향 2
업무분담 문제 주관기관과 운영기관의 분리 ( 환경부 - 지방자치단체 )
산재되고 산발적인 자료의 체계적인 취합 및 관리 문제 ex. 미국의 AIRS system
자료 활용 문제
Dong Young Kim
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Thank you.You can download this presentation from http://kimdy.kri.re.kr/research/paper_data/
Dong Young Kim