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Review of Field Methods for the Determination of the Tortuosity and Effective Gas-Phase Diffusivity in the Vadose Zone

Lookup NU author(s): Professor David WernerORCiD

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Abstract

Modeling the gas exchange flux between soil and the atmosphere, risk assessment, and the evaluation of remediation strategies at contaminated sites require the knowledge of gas-phase diffusivities in the subsurface. This paper reviews methods to measure the tortuosity factor or the effective gas-phase diffusion coefficient in situ.

Publication metadata

Author(s): Werner D, Grathwohl P, Hohener P

Publication type: Article

Publication status: Published

Journal: Vadose Zone Journal

Year: 2004

Volume: 3

Issue: 4

Pages: 1240-1248

ISSN (print): 1539-1663

Publisher: Soil Science Society of America

URL: http://dx.doi.org/10.2113/3.4.1240

DOI: 10.2113/3.4.1240

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