Retardation of organo-bromides in a fractured chalk aquitard

Journal of Contaminant Hydrology
Shai EzraItzhak Bilkis

Abstract

This study investigates the mechanisms controlling the distribution of 3-bromo-2,2-bis(bromomethyl)propanol (TBNPA) and 2,2-bis(bromomethyl)propan-1,3-diol (DBNPG) in a fractured chalk aquitard. An extensive monitoring program showed a systematic decrease in the TBNPA/DBNPG ratio with distance from the contamination source. Sorption of TBNPA on the white and/or gray chalks comprising the aquitard is approximately one order of magnitude greater than that of DBNPG. This results in more efficient removal of TBNPA from the fracture into the porous matrix and thus decreases the TBNPA/DBNPG ratio in the fracture water. Mathematical modeling of solute transport in the fracture domain illustrates the probable importance of sorption in controlling the spatial variation in TBNPA and DBNPG ratio.

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Citations

Jun 22, 2013·Chemosphere·Yinon YecheskelBrian Berkowitz
Nov 26, 2008·Drug Metabolism and Disposition : the Biological Fate of Chemicals·Simone I HoehleI Glenn Sipes
Mar 27, 2012·Journal of Contaminant Hydrology·Shira RubinBrian Berkowitz
Feb 23, 2007·Chemosphere·Osnat SegevAriel Kushmaro
Nov 1, 2018·The Science of the Total Environment·Ningxin ChenPierre Ribstein
Jun 15, 2018·Environmental Science & Technology·Meirav Cohen, Noam Weisbrod

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