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Book Chapter

Suitability of generic rock to isolate dangerous waste

By
Bernard L. Cohen
Bernard L. Cohen
Physics Department, University of Pittsburgh, Pittsburgh, Pennsylvania 15206, USA
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Published:
January 01, 2008

Abstract

In a broad-scale risk analysis of hazardous waste isolation by incorporating it into rock, the principal failure scenario is for the waste material to be dissolved out of the rock by groundwater, to be carried with the groundwater close to the surface, and then to be ingested by humans. Based on average conditions and average rock behavior, the probability per year for an atom of this waste rock to be dissolved in groundwater and, after it reaches the surface, the probability of it being ingested by a human via various pathways are negligible. These pathways include potable water derived from rivers and from wells, freshwater fish as a food, agricultural use of irrigation, deposition by rivers of silt that is later used for agriculture, and—after the material has reached the ocean—human consumption of seafood. The time delay between waste burial and human ingestion, courtesy of common geologic features and processes, is the key to effective long-term isolation.

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Contents

GSA Reviews in Engineering Geology

Deep Geologic Repositories

Norbert T. Rempe
Norbert T. Rempe
1403 N. Country Club Circle Carlsbad, New Mexico 88220, USA
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Geological Society of America
Volume
19
ISBN electronic:
9780813758190
Publication date:
January 01, 2008

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