Air Quality in the 20th, 21st, and 22nd Centuries

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Atlanta
Air Quality in the 20th, 21st, and 22nd
Centuries Local Regional Solutions for
the Global Community
Beijing
November 29, 2004
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Physical Atmosphere
Chemical Atmosphere
Air Quality
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Oct. 16, 2003, p. 6A Smoggy skies persist despite
decade of work Changes in driving habits help
stall progress By Traci WatsonUSA TODAY The
amount of smog over the USA failed to decline
during the past decade despite a nationwide
effort to improve air quality, statistics from
the Environmental Protection Agency show. Smog
levels dropped during the 1980s. But the latest
edition of the EPA's annual report on air quality
shows that smog levels didn't get better from
1993 through 2002. Independent scientists have
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Physical Atmosphere
Chemical Atmosphere
Air Quality
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At the Georgia Air Quality Summit, Georgians
will plot a course for the next 25 years a
course that will re-envision the importance of
clean air, and in the process re-shape our
metropolitan areas through quality growth,
re-invent commerce for a more prosperous 21st
Century, re-invigorate people and their
participation in community decision making, and
re-invest in our natural resources.
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• Air Quality
• Research
• Instrument Development
• Field and Laboratory Studies
• Model Development and Prediction
• Integrated Analyses
• Applications

• For example
• Forecasting
• Source Apportionment

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IMPACT Near-term Air Quality Forecasting

• Health alert / management
• Episodic controls
• Enhance field studies
• Improve public awareness and education
• Manage public / media relations
• Voluntary controls

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IMPACT Long-term Air Quality Forecasting
Air Quality, Emissions, Growth, and Change A
Method to Prescribe a Desirable Future
Emissions
Air Quality
Values
Development
Planning
Emissions
Development
Planning
Air Quality
Values
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IMPACT Control Strategy Cost Optimization in
Middle Georgia(Understanding the relationships
between sources and ambient air quality.)
Simulated Concentrations
Control Costs
Source Impacts
Cost optimized strategies
Source sensitivities
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IMPACT Air Quality and Health Outcomes(Understan
ding the relationship between ambient air quality
and human health.)
Health Endpoints
Health Associations
Air Quality
Current approach associates pollutant
concentrations directly with health outcomes.
In-situ data is limited however.
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IMPACT Sources-to-Air-to-Health(Making visible
the connections between sources, air quality, and
health.)
Satellite obs.
Simulated Conc.
In-situ obs.
Probabilistic pollutant field
Association between Source Impact and Health
Endpoints
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IMPACT Source-to-Air-to-Health Cost Optimization
Simulated Conc.
In-situ obs.
Satellite obs.
Probabilistic pollutant field
Control Costs
Cost Optimized Health Protection
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Physical Atmosphere
Chemical Atmosphere
Air Quality