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Ecotoxicological and microbiological characterization of soils from heavy-metal- and hydrocarbon-contaminated sites |
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| Authors: | Grażyna A. Płaza Grzegorz Nałęcz-Jawecki Onruthai Pinyakong Paul Illmer Rosa Margesin |
| Affiliation: | 1. Department of Environmental Microbiology, Institute for Ecology of Industrial Areas, 40-844, Katowice, Poland 2. Department of Environmental Health Sciences, Medical University of Warsaw, 02-097, Warszawa, Poland 3. Department of Microbiology, Faculty of Science, Chulalongkorn University, Phyathai Road, Patumwan, Bangkok, 10330, Thailand 4. Institute of Microbiology, University of Innsbruck, Technikerstrasse 25, 6020, Innsbruck, Austria |
| Abstract: | The aims of this study were to characterize soils from industrial sites by combining physicochemical, microbiological, and ecotoxicological parameters and to assess the suitability of these assays for evaluation of contaminated sites and ecological risk assessment. The soil samples were taken from long-term contaminated sites containing high amounts of heavy metals (sites 1 and 2) or petroleum hydrocarbons (site 3) located in the upper Silesia Industrial Region in southern Poland. Due to soil heterogeneity, large differences between all investigated parameters were measured. Microbiological properties revealed the presence of high numbers of viable hetrotrophic microorganisms. Soil enzyme activities were considerably reduced or could not be detected in contaminated soils. Activities involved in N turnover (N mineralization and nitrification) were significantly (P? |
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