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.
Likens
G E
GE
Institute of Ecosystem Studies, Box AB, Millbrook, NY 12545, USA. PKHG32A@prodigy.com
Tartowski
S L
SL
Berger
T W
TW
Richey
D G
DG
Driscoll
C T
CT
Frank
H G
HG
Klein
A
A
D000327:Adsorption; D001673:Biodegradation, Environmental; D017402:Chlorofluorocarbons / Q000378:metabolism; D003198:Computer Simulation; D004463:Ecology; D004785:Environmental Pollutants / Q000378:metabolism*; D008962:Models, Theoretical; D009513:New Hampshire; D012621:Seasons; D012989:Soil Pollutants / Q000378:metabolism; D014197:Trees / Q000378:metabolism*; D014269:Trifluoroacetic Acid / Q000378:metabolism*; D014873:Water Pollutants / Q000378:metabolism
D017402:Chlorofluorocarbons; D004785:Environmental Pollutants; D012989:Soil Pollutants; D014873:Water Pollutants; D014269:Trifluoroacetic Acid