HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Allen-King, R. M. Articles by Barker, J. F. Search for Related Content PubMed Articles by Allen-King, R. M. Articles by Barker, J. F. Agricola Articles by Allen-King, R. M. Articles by Barker, J. F.

Fate of Dissolved Toluene during Steady Infiltration through Unsaturated Soil: I. Method Emphasizing Chloroform as a Volatile, Sorptive, and Recalcitrant Tracer

Dep. of Geology, Washington State Univ., Pullman, WA 99164-2812;

Robert W. Gillham and James F. Barker

Waterloo Centre for Groundwater Research, Univ. of Waterloo, Waterloo, ON Canada N2L 3G1.

^* Corresponding author (allenkng{at}wsuvml.csc.wsu.edu).

ABSTRACT

Chloroform can be used as a volatile, sorptive, and recalcitrant tracer compound relative to volatile and transformable organic compounds, such as toluene, in aerobic unsaturated soil column experiments. Chloroform concentrations <4 mg/L did not affect the rate of toluene oxidation and chloroform itself was not transformed aerobically. In the current experiments, chloroform was applied at lower concentrations than the degradable compound. Chloroform was used to estimate the column mass balance without degradation so that mass loss for the degradable compound in the column could be confidently attributed to transformation. Consistent numbers of viable heterotrophic microorganisms in soil samples from column experiments with and without chloroform added suggest that the added chloroform did not have a negative effect on the soil microorganism population.

This article has been cited by other articles:

				M. L. Rockhold, R. R. Yarwood, M. R. Niemet, P. J. Bottomley, and J. S. Selker Experimental Observations and Numerical Modeling of Coupled Microbial and Transport Processes in Variably Saturated Sand Vadose Zone J., May 12, 2005; 4(2): 407 - 417. [Abstract] [Full Text] [PDF]