CTUIR Air Quality Modeling Case Study

Theodore A. HaighConfederated Tribes of the Umatilla Indian Reservation

Environmental Science & Technology ProgramAlbert Einstein: Science is a wonderful thing if one does not have to earn one's living at it.

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Objectives ISC Model

Input and output data Areas of Concern

Umatilla Army Depot Hanford Agriculture Industry

Why

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Gaussian Model - ISC

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Other Dispersion Models? Eulerian

Fixed coordinate Focus on statistical

properties of fluid velocities

Eulerian statistics are readily measurable

Directly applicable when there are chemical reactions

Closure problem – no generally valid solutions

Lagrangian Moving coordinate Focus on statistical

properties of displacements of groups of particles

No closure problem Difficult to accurately

determine required particle statistics

Not directly applicable to problems involving nonlinear chemical reactions

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Operating as an Oversight Committee

CTUIR checks all model output Verify all output independently Check for consistency Recommendations

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Health

Dose rates and effects Area contamination

How long When did contamination occur Half life Environmental degradation

How much Where

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Emergency Planning and Contaminated Areas

What if the Army Depot has an accident? Who cleans up the mess Need to know

How much Where What

They get to clean it up

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Land Use Ceded areas Traditional

lifestyles Agriculture Housing Industrial and

commercial development

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Contamination from Outside the Reservation

Power plants Agriculture Government installations Urban sprawl

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Contamination from Inside the Reservation

Industrial activity

Agricultural activity

Recreational activity

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Predictions How

far How

much From

where What

species

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Verification Does it all make sense?

Validation from other sources

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What for? Quality

Life Environment Education

Future development