Environmentally friendly assessment of organic compound bioaccessibility using sub-critical water

AE Latawiec, AL Swindell, BJ Reid

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

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 [14C]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 14C-activity at 160 °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 14C-activity in dissimilar soils following increasing soil-contaminant contact time. Sub-critical water extraction reflects phenanthrene bioaccessibility in the soil.
Original languageEnglish
Pages (from-to)467-473
Number of pages7
JournalEnvironmental Pollution
Volume156
Issue number2
DOIs
Publication statusPublished - 2008

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