Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Radon as a naturally occurring tracer for the assessment of residual NAPL contamination of aquifers
Autor Schubert, M.; Paschke, A.; Lau, S.; Geyer, W.; Knöller, K.;
Journal / Serie Environmental Pollution
Erscheinungsjahr 2007
Department OEC; ANA; ISOHYD;
Band/Volume 145
Heft 3
Sprache englisch;
Keywords radon; NAPL; contamination; groundwater; partitioning tracer
Abstract The noble gas radon has a strong affinity to non-aqueous phase-liquids (NAPLs). That property makes it applicable as naturally occurring partitioning tracer for assessing residual NAPL contamination of aquifers. In a NAPL contaminated aquifer, radon dissolved in the groundwater partitions preferably into the NAPL. The magnitude of the resulting radon deficit in the groundwater depends on the NAPL-specific radon partition coefficient and on the NAPL saturation of the pore space. Hence, if the partition coefficient is known, the NAPL saturation is attainable by determination of the radon deficit. After a concise discussion of theoretical aspects regarding radon partitioning into NAPL, related experimental data and results of a field investigation are presented. Aim of the laboratory experiments was the determination of radon partition coefficients of multi-component NAPLs of environmental concern. The on-site activities were carried out in order to confirm the applicability of the "radon method" under field conditions.The paper presents the theoretical concept and experimental results which confirm the applicability of naturally occurring radon for assessing residual NAPL contamination of aquifers.
ID 2281
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=2281
Schubert, M., Paschke, A., Lau, S., Geyer, W., Knöller, K. (2007):
Radon as a naturally occurring tracer for the assessment of residual NAPL contamination of aquifers
Environ. Pollut. 145 (3), 920 - 927