Transport and fate of trifluoroacetate in upland forest and wetland ecosystems.

Although trifluoroacetate (TFA), a breakdown product of chlorofluorocarbon replacements, is being dispersed widely within the biosphere, its ecological fate is largely unknown. TFA was added experimentally to an upland, northern hardwood forest and to a small forest wetland ecosystem within the Hubbard Brook Experimental Forest in New Hampshire. Inputs of TFA were not transported conservatively through these ecosystems; instead, significant amounts of TFA were retained within the vegetation and soil compartments. More TFA was retained by the wetland ecosystem than by the upland forest ecosystem. Using simulation modeling, TFA concentrations were predicted for soil and drainage water until the year 2040.

[1]  G. Likens,et al.  Soil retention of trifluoroacetate , 1997 .

[2]  G. Likens,et al.  Nitrogen Retention Capacity of a Northern Hardwood Forest Soil Under Ammonium Sulfate Additions , 1995 .

[3]  T. K. Tromp,et al.  Potential accumulation of a CFC-replacement degradation product in seasonal wetlands , 1995, Nature.

[4]  Paul Ekins,et al.  Sustainable Trade: A New Paradigm for World Welfare. , 1995 .

[5]  H. Scholl,et al.  Trace analysis of airborne haloacetates , 1995 .

[6]  S. Goldberg,et al.  Chemical equilibrium and reaction models , 1995 .

[7]  Gene E. Likens,et al.  Biogeochemistry of a Forested Ecosystem , 1978, Springer New York.

[8]  P. Visscher,et al.  Degradation of trifluoroacetate in oxic and anoxic sediments , 1994, Nature.

[9]  T. Wallington,et al.  Formation of trifluoroacetic acid from the atmospheric degradation of hydrofluorocarbon 134a: a human health concern? , 1993, Air & waste : journal of the Air & Waste Management Association.

[10]  D. Dunbar,et al.  Rat liver metabolism and toxicity of 2,2,2-trifluoroethanol. , 1992, Biochemical pharmacology.

[11]  G. Likens.  Human-accelerated environmental change , 1991 .

[12]  J. Barber,et al.  Xenobiotic Monitoring in Plants by F and H Nuclear Magnetic Resonance Imaging and Spectroscopy: Uptake of Trifluoroacetic Acid in Lycopersicon esculentum. , 1989, Plant physiology.

[13]  Gene E. Likens,et al.  An Ecosystem approach to aquatic ecology: Mirror Lake and its environment , 1985 .

[14]  A. Cole,et al.  Effect of sodium fluoroacetate (“compound 1080”) on the soil microflora , 1979 .

[15]  C. Federer,et al.  Simulated streamflow response to possible differences in transpiration among species of hardwood trees , 1978 .

[16]  E. N. Lawrence.  Clean Air Act , 1971, Nature.

[17]  M. Alexander,et al.  Microbial decomposition of halogenated propionic and acetic acids. , 1960, Canadian journal of microbiology.