Accumulation and Toxicity of Metals (Copper, Zinc, Cadmium, and Lead) and Organic Compounds (Geraniol and Denzo[A]pyrene) In the Oribatid Mite Oppia Nitens
Accumulation and Toxicity of Metals (Copper, Zinc, Cadmium, and Lead) and Organic Compounds (Geraniol and Denzo[A]pyrene) In the Oribatid Mite Oppia Nitens
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DOI：
10.1002/etc.1857
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发表时间：
2012-07-01
影响因子：
4.1
通讯作者：
Siciliano, Steven D.
中科院分区：
文献类型：
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作者：
Owojori, Olugbenga J.;Siciliano, Steven D.
建议将甲螨Oppia nitens作为污染北方土壤生态毒理学评价的试验种。了解不同作用方式的污染物对该物种的生态毒性对于评估其与其他无脊椎动物相比的相对敏感性是必要的。对四种金属和两种有机化合物的毒性也进行了研究。nitens在28或35天的时间内进行了评价。在试验结束时评估螨的存活、繁殖和组织蓄积。生殖是一个更敏感的终点比生存的所有化合物，除香叶醇。铜、锌、镉和铅的生殖半数抑制浓度（IC 50）分别为2，896、1，562、137和1，678 mg/kg，而苯并[a]芘和香叶醇的IC 50分别大于1，600和283 mg/kg。铜、锌、镉和铅的半致死浓度（LC 50）值分别为3，311、2，291、603和6，761 mg/kg，而苯并[a]芘和香叶醇的半致死浓度（LC 50）值分别大于1，600和251 mg/kg。与其他土壤无脊椎动物比较，O.镍对Cu和Zn的敏感性较低，但与Cd和Pb的敏感性在同一数量级。尽管O.在生态毒理学评价中，镍钛合金属于代表性不足的一类，因此应列入受污染的北方和其他北方土壤风险评估的成套试验中。Environ.毒理学. 2012; 31：1639-1648。© 2012 SETAC
The oribatid miteOppia nitenshas been suggested as a test species for ecotoxicological assessment of contaminated boreal soils. Knowledge of the ecotoxicity of pollutants of different modes of action to this species is necessary to assess its relative sensitivity in comparison with other invertebrates. The toxicity of four metals and two organic chemicals toO. nitenswas evaluated over a 28‐ or 35‐d period. Mite survival, reproduction, and tissue accumulation were assessed at the end of the test. Reproduction was a more sensitive endpoint than survival for all of the compounds except geraniol. The reproduction median inhibitory concentration (IC50) values for Cu, Zn, Cd, and Pb were 2,896, 1,562, 137, and 1,678 mg/kg, respectively, whereas those for benzo[a]pyrene and geraniol were greater than 1,600 and 283 mg/kg. The median lethal concentration (LC50) values for Cu, Zn, Cd, and Pb were 3,311, 2,291, 603, and 6,761 mg/kg, respectively, whereas those for benzo[a]pyrene and geraniol were greater than 1,600 and 251 mg/kg. When effects on reproduction are compared with those of other soil invertebrates,O. nitensappears less sensitive to Cu and Zn but within the same order of magnitude of sensitivity as that for Cd and Pb. Despite its lower sensitivity to Cu and Zn,O. nitensis a member of a group underrepresented in ecotoxicological evaluations and should therefore be included in test battery for risk assessment of contaminated boreal and other northern soils. Environ. Toxicol. Chem. 2012; 31: 1639–1648. © 2012 SETAC