title: Environmentally friendly assessment of organic compound bioaccessibility using sub-critical water.
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.
authors.affiliation: School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK.
authors.forename: Agnieszka E
authors.initials: AE
authors.lastname: Latawiec
authors.forename: Annika L
authors.initials: AL
authors.lastname: Swindell
authors.forename: Brian J
authors.initials: BJ
authors.lastname: Reid
mesh_terms: D001673:Biodegradation, Environmental; D002250:Carbon Radioisotopes / Q000032:analysis; D005591:Chemical Fractionation; D004463:Ecology / Q000379:methods; D007220:Industrial Waste; D010616:Phenanthrenes / Q000032:analysis*; D011549:Pseudomonas / Q000378:metabolism*; D018570:Risk Assessment; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000032:analysis*; D013995:Time
chemical_list: D002250:Carbon Radioisotopes; D007220:Industrial Waste; D010616:Phenanthrenes; D012989:Soil Pollutants; C031181:phenanthrene