Use of bioassays to investigate the influence of bioavailability on the toxicity of petrol hydrocarbon contaminated soils
Abstract
When crude oil or its products (organic pollutants) infiltrate the ground, contamination of the soil is evaluated by quantification of the pollutants. However, the same quantity of petrol hydrocarbons in different soils does not constitute equal toxicity. Organic pollutants can bind to the matrix of the soil. This reduction of bioavailability of the pollutant can attenuate the toxic effects of the contaminated soil. On the other hand the production of metabolites which can cause an increase in the toxic effects cannot be excluded. Hence the combination of chemical analyses and toxicity tests of various contaminated soils are required. The main objective of this project is the determination of toxicity of a series of petrol hydrocarbons (crude oil and oil products) by bioassays. Therefore, bioassays where selected for hydrocarbon contaminated elutriates and soil samples followed by optimisation. The selected bioassays were used on different reference soils (freshly spiked and aged) and on various industrial soils. In addition, a genotoxicity test was carried out for all contaminated soils. In the last part of the project different supplemental geno- and toxicity tests were undertaken and all data were analysed and interpreted. The results of the toxicity tests were correlated with the data of the GC-FID.
bioassays mineral oil soil contamination bioavailability toxicity genotoxicity bioaccumulation
Publikationen
Application of Bioassays for Site-Specific Risk Assessment
Autoren: Loibner, A.P., Braun, R., Boller, V., Szolar, O.H.J. Jahr: 2003
Chapter in collected volumes
Project staff
Andreas Paul Loibner
Ao.Univ.Prof. Dipl.-Ing. Dr.nat.techn. Andreas Paul Loibner
andreas.loibner@boku.ac.at
Tel: +43 1 47654-97470
Project Leader
01.01.2003 - 28.02.2005