For more information on the DNAPL Website, please contact:

Linda Fiedler
Technology Assessment Branch
PH: (703) 603-7194 | Email: fiedler.linda@epa.gov

Halogenated Alkanes

Methanes

Table 1 presents common physical/chemical properties of the profiled halogenated methanes. All of these chemicals are expected to be highly mobile in the subsurface. With the exception of trichlorofluoromethane, which has a moderate potential for bioaccumulation, the bioaccumulation potential of all of the remaining chemicals is limited. All of the halogenated methanes are subject to anaerobic biodegradation, although biodegradation of carbon tetrachloride is slow. Methylene chloride and bromochloromethane are also biodegradable in an aerobic environment (Cohen and Mercer 1993).

For references and temperatures see individual chemical profiles

For Further Information

DNAPL Site Evaluation
Cohen, R. and J. Mercer. EPA 600-R-93-022, 369 pp, 1993

http://cluin.org/contaminantfocus/default.focus/sec/dense_nonaqueous_phase_liquids_(dnapls)/cat/chemistry_and_behavior/
Last updated on Tuesday, August 3, 2010
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