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Gewählte Publikation:

Rost, H; Loibner, AP; Hasinger, M; Braun, R; Szolar, OH.
(2002): Behavior of PAHs during cold storage of historically contaminated soil samples.
Chemosphere. 2002; 49(10):1239-1246

Abstract:
The stability of historically polycyclic aromatic hydrocarbon (PAH)-contaminated soils during cold storage was investigated. Samples from two former manufactured gas plants exhibited quantitative recoveries of PAHs over the whole period of sample holding at 4 degreesC in the dark (8-10 months), whereas significant losses of PAHs were observed for soils received from a former railroad sleeper preservation plant with low molecular weight compounds being notably more affected compared to heavier PAHs. Already after 2 weeks of holding time, 3-ring PAHs in one of theses samples were down to 29-73% of the initial concentration and significant losses were observed for up to 5-ring compounds. Dissipation of PAHs was found to be predominantly due to aerobic microbial metabolism since sodium azide poisoned samples showed quantitative recoveries for all PAHs over the entire storage time of 3 months. A similar stabilizing effect was observed for freezing at -20 degreesC as means of preservation. Except for acenaphthene, no significant loss for any of the PAHs was observed over 6 weeks of holding time. Eventually, selected chemical, physical, and biological parameters of two soils were investigated and identified as potential indicators for the stability of PAH-contaminated soil samples. (C) 2002 Elsevier Science Ltd. All rights reserved.
Autor/innen der BOKU Wien:
Braun Rudolf
Loibner Andreas Paul
BOKU Gendermonitor:

Find related publications in this database (using NML MeSH Indexing)
Biodegradation, Environmental -
Freezing -
Molecular Weight -
Polycyclic Hydrocarbons, Aromatic - analysis
Power Plants - analysis
Reproducibility of Results - analysis
Soil Pollutants - analysis
Specimen Handling - analysis

Find related publications in this database (Keywords)
polycyclic aromatic hydrocarbons
sample holding
biodegradation
biocide
freezing


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