Bezchlebová Jitka, Cernohlávková Jitka, Kobeticová Klára, Lána Jan, Sochová Ivana, Hofman Jakub
Faculty of Science, Masaryk University, Research Centre for Environmental Chemistry and Ecotoxicology, Kamenice 126/3, Brno, 625 00 Czech Republic.
Ecotoxicol Environ Saf. 2007 Jun;67(2):206-11. doi: 10.1016/j.ecoenv.2006.12.015. Epub 2007 Mar 26.
Despite the fact that chlorinated paraffins have been produced in relatively large amounts, and high concentrations have been found in sewage sludge applied to soils, there is little information on their concentrations in soils and the effect on soil organisms. The aim of this study was to investigate the toxicity of chlorinated paraffins in soils. The effects of short-chain chlorinated paraffins (64% chlorine content) on invertebrates (Eisenia fetida, Folsomia candida, Enchytraeus albidus, Enchytraeus crypticus, Caenorhabditis elegans) and substrate-induced respiration of indigenous microorganisms were studied. Differences were found in the sensitivity of the tested organisms to short-chain chlorinated paraffins. F. candida was identified as the most sensitive organism with LC(50) and EC(50) values of 5733 and 1230 mg/kg, respectively. Toxicity results were compared with available studies and the predicted no effect concentration (PNEC) of 5.28 mg/kg was estimated for the soil environment, based on our data.
尽管氯化石蜡的产量相对较大，并且在用于土壤的污水污泥中发现了高浓度的氯化石蜡，但关于它们在土壤中的浓度以及对土壤生物的影响的信息却很少。本研究的目的是调查氯化石蜡在土壤中的毒性。研究了短链氯化石蜡（氯含量64%）对无脊椎动物（赤子爱胜蚓、白符跳、白线蚓、隐尾蚓、秀丽隐杆线虫）和本地微生物的底物诱导呼吸的影响。发现受试生物对短链氯化石蜡的敏感性存在差异。白符跳被确定为最敏感的生物，其LC(50)和EC(50)值分别为5733和1230 mg/kg。根据我们的数据，将毒性结果与现有研究进行了比较，并估计土壤环境的预测无效应浓度（PNEC）为5.28 mg/kg。
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