Surfactant-enhanced treatment of oil-contaminated Arctic tundra soil: Ecotoxicological assessment
| Autor: | Tatiana Smirnova, Vera Terekhova, Natalia Malina, Anastasiia Karnaeva, Elena Mazlova, Olga Kulikova |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Soil test
Chemistry Environmental remediation Soil Science 04 agricultural and veterinary sciences Plant Science 010501 environmental sciences Contamination 01 natural sciences Soil quality Tundra Environmental chemistry Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Ecotoxicity Gleysol 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Environmental Technology & Innovation. 23:101570 |
| ISSN: | 2352-1864 |
| DOI: | 10.1016/j.eti.2021.101570 |
| Popis: | During 2018–2019 summer expeditions to the Yamal peninsula, we collected tundra gley soil samples at the oil-contaminated sites. The contamination level was determined by fluorimetry and was ranged from 30 to 107 g/kg. The soil quality was evaluated by its enzymatic activity; the low catalase activity of the soils confirmed the presumed slow soil natural attenuation and the need for land remediation. The oil-contained and background samples were ex-situ treated with the aqueous solutions of non-ionic BOK-6 and anionic AddiMax PV01 synthetic surfactants. The treatment efficiency reached 71 ± 2% and 97 ± 3% in the experimental design with BOK-6 and AddiMax PV01, respectively. We derived the ecotoxicity endpoints for the surfactant solutions, using infusoria Paramecium caudatum Ehrenberg and higher plants Raphanus sativus L. and Avena sativa L. The protozoan mortality was studied and resulted in LC 50 − 24 values |
| Databáze: | OpenAIRE |
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