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首页> 外文期刊>Environmental toxicology and chemistry >Exploring the Use of Species Sensitivity Distributions to Define Protective Limits for the Use of Organic Wastes as Soil Amendments
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Exploring the Use of Species Sensitivity Distributions to Define Protective Limits for the Use of Organic Wastes as Soil Amendments

机译：探索物种敏感性分布的使用来定义用于使用有机废物作为土壤修正案的保护区

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The use of organic wastes as soil amendments can be an important measure to improve soil quality and reduce waste accumulation and landfilling. However, the potential contaminant loads of such wastes, can be a source of environmental concern. Consequently, legislation has been developed to regulate the use of these wastes in agricultural soils. However, the regulations only consider chemical parameters, which are insufficient to establish the level of environmental risk. A possible solution is the use of species sensitivity distributions (SSDs), employing ecotoxicological data from test batteries that could be incorporated into legislation. In the present study, 2 different hazardous concentrations affecting 5 and 50% of the soil community (HC5 and HC50, respectively) were determined using ecotoxicological data (effect concentrations, 10 and 50% [EC10 and EC50, respectively]) for 5 different wastes. The results demonstrate that, as expected, current legislative thresholds do not translate to environmental risk/protection and that SSDs may be an important tool allowing the simple inclusion and interpretation of ecotoxicological data from test batteries in legislation. On the other hand, SSDs must be used with caution because there are still doubts about their actual value in risk prediction and about which estimates provide adequate protection. For instance, the use of HC50(EC10) values is not recommended; these values overlap with the more conservative HC5(EC50) data, highlighting the fact that the use of lower effect concentrations may not always provide the most protective approach. Also, hazardous concentrations need to be calibrated at the field or semifield level, to verify environmental protection in different soils/environments and the adequacy of standard test organisms. Environ Toxicol Chem 2019;38:1569-1576. (c) 2019 SETAC
机译：使用有机废物作为土壤修正案可以是提高土壤质量的重要措施，减少废物积累和填埋场。然而，这种废物的潜在污染物负荷可以是环境问题的来源。因此，已经制定了立法来规范农业土壤中这些废物的使用。但是，法规只考虑化学参数，这不足以建立环境风险水平。可能的解决方案是使用物种敏感性分布（SSD），采用可以纳入立法的测试电池的生态毒理学数据。在本研究中，使用生态毒理学数据（分别影响50％的土壤群（分别为50％的土壤群（HC5和HC50）（分别为50％[EC10和EC50]）进行5种不同废物的不同危险浓度。结果表明，正如预期的那样，目前的立法阈值不会转化为环境风险/保护，并且SSD可能是一种重要的工具，允许简单地包含和解释来自立法中的测试电池的生态毒理学数据。另一方面，必须谨慎使用SSD，因为它们仍然怀疑其实际价值在风险预测和估算中的实际值提供了足够的保护。例如，不建议使用HC50（EC10）值;这些值与更保守的HC5（EC50）数据重叠，突出了较低效果浓度的使用可能并不总是提供最具保护性的方法。此外，需要在现场或半导体水平上校准危险浓度，以验证不同土壤/环境中的环境保护以及标准测试生物的充分性。环境毒素科学2019年; 38：1569-1576。 （c）2019 Setac

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