Development of Radon-222 as Natural Tracer for Monitoring the Remediation of NAPL in the Subsurface | Zendy

Brian M. Davis | Zendy; Lewis Semprini | Zendy; Jonathan D. Istok | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Development of Radon-222 as Natural Tracer for Monitoring the Remediation of NAPL in the Subsurface

Author(s) -

Brian M. Davis,

Lewis Semprini,

Jonathan D. Istok

Publication year - 2003

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/809809

Subject(s) - tracer , radon , aquifer , groundwater , environmental remediation , contamination , environmental science , soil science , petroleum engineering , hydrology (agriculture) , geology , geotechnical engineering , ecology , physics , quantum mechanics , nuclear physics , biology

Naturally occurring 222-radon in ground water can potentially be used as an in situ partitioning tracer to characterize dense nonaqueous phase liquid (DNAPL) saturations. The static method involves comparing radon concentrations in water samples from DNAPL-contaminated and non-contaminated portions of an aquifer. During a push-pull test, a known volume of test solution (radon-free water containing a conservation tracer) is first injected (''pushed'') into a well; flow is then reversed and the test solution/groundwater mixture is extracted (''pulled'') from the same well. In the presence of NAPL radon transport is retarded relative to the conservative tracer. Assuming linear equilibrium partitioning, retardation factors for radon can be used to estimate NAPL saturations.The utility of this methodology was evaluated in laboratory and field settings

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research