Toxicity of Water Accommodated Fractions of Estonian Shale Fuel Oils to Aquatic Organisms
| Autor: | Anne Kahru, Liina Kanarbik, Mariliis Sihtmäe, Irina Blinova |
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| Rok vydání: | 2015 |
| Předmět: |
Estonia
010504 meteorology & atmospheric sciences Health Toxicology and Mutagenesis Daphnia magna 010501 environmental sciences Toxicology 01 natural sciences Daphnia Aquatic plant Animals Ecotoxicology Petroleum Pollution Polycyclic Aromatic Hydrocarbons 0105 earth and related environmental sciences Trophic level biology Ecology General Medicine Fuel oil biology.organism_classification Pollution Environmental chemistry Ecotoxicity Oil shale Fuel Oils Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Archives of Environmental Contamination and Toxicology. 70:383-391 |
| ISSN: | 1432-0703 0090-4341 |
| Popis: | Estonia is the worldwide leading producer of the fuel oils from the oil shale. We evaluated the ecotoxicity of water accommodated fraction (WAF) of two Estonian shale fuel oils ("VKG D" and "VKG sweet") to aquatic species belonging to different trophic levels (marine bacteria, freshwater crustaceans and aquatic plants). Artificial fresh water and natural lake water were used to prepare WAFs. "VKG sweet" (lower density) proved more toxic to aquatic species than "VKG D" (higher density). Our data indicate that though shale oils were very toxic to crustaceans, the short-term exposure of Daphnia magna to sub-lethal concentrations of shale fuel oils WAFs may increase the reproductive potential of survived organisms. The weak correlation between measured chemical parameters (C10-C40 hydrocarbons and sum of 16 PAHs) and WAF's toxicity to studied species indicates that such integrated chemical parameters are not very informative for prediction of shale fuel oils ecotoxicity. |
| Databáze: | OpenAIRE |
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