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  • Title: Environmentally friendly assessment of organic compound bioaccessibility using sub-critical water.
    Author: Latawiec AE, Swindell AL, Reid BJ.
    Journal: Environ Pollut; 2008 Nov; 156(2):467-73. PubMed ID: 18314237.
    Abstract:
    The evaluation of microbial availability of contaminants is of high importance for better reflecting the processes governing contaminant fate in soil and for establishing the risk associated with contaminated sites. A sub-critical water extraction technique was assessed for its potential to determine the microbially degradable fraction of [(14)C]phenanthrene-associated activity in two dissimilar soils at three different ageing times (14, 28 and 49 days). For the majority of determinations, no significant (p>0.05) difference between sub-critical water-extracted (14)C-activity at 160 degrees C and the fraction mineralized by catabolically active Pseudomonas sp. was observed. Collectively, the results suggested that the sub-critical water extraction technique was an appropriate technique for predicting the biodegradable fraction of phenanthrene-associated (14)C-activity in dissimilar soils following increasing soil-contaminant contact time.
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