Soil Science, School of Agriculture Food and Wine, University of Adelaide, Glen Osmond, South Australia, Australia.
CSIRO Land and Water, Urrbrae, South Australia, Australia.
Environ Toxicol Chem. 2018 May;37(5):1340-1348. doi: 10.1002/etc.4074. Epub 2018 Feb 26.
The unique physical and chemical properties of graphene-based nanomaterials (GNMs) have inspired a diverse range of scientific and industrial applications. The market value of GNMs is predicted to reach $US 1.3 billion by 2023. Common to many nanomaterials, an important and unresolved question is the environmental consequences of the increases in GNMs use. The current deficiencies in studies reporting ecotoxicology data for GNMs include differences in analytical methodologies for quantification, no standardized test guidelines, differences in morphology of GNMs, the lack of Chemical Abstract Service numbers, and the quality of the reported data. The assessment of potential adverse effects on aquatic organisms typically relies on guideline values based on species sensitivity distributions (SSDs) of toxicity data. We present preliminary water quality guideline values for graphene oxide NMs in freshwaters. Data include 10 species from 7 phyla (bacteria and fungi were not included). The most sensitive organism was found to be the freshwater shrimp Palaemon pandaliformis. The derived guideline values for 99, 95, 90, and 80% species protection were 350, 600, 830, and 1300 μg/L, respectively. These results will contribute to the regulatory derivations of future water quality guideline values for graphene-based NMs. Environ Toxicol Chem 2018;37:1340-1348. © 2018 SETAC.
基于石墨烯的纳米材料（GNMs）具有独特的物理和化学性质，激发了广泛的科学和工业应用。预计到 2023 年，GNMs 的市场价值将达到 13 亿美元。与许多纳米材料一样，一个重要且未解决的问题是 GNMs 使用增加所带来的环境后果。目前，关于 GNMs 生态毒理学数据的研究存在一些缺陷，包括定量分析方法的差异、没有标准化的测试指南、GNMs 形态的差异、缺乏化学文摘服务号码以及报告数据的质量。通常情况下，对水生生物的潜在不利影响的评估依赖于基于毒性数据物种敏感性分布（SSD）的指导值。我们提出了关于淡水氧化石墨烯纳米材料的初步水质指导值。数据包括来自 7 个门的 10 个物种（细菌和真菌不包括在内）。最敏感的生物是淡水虾 Palaemon pandaliformis。分别得出的 99%、95%、90%和 80%物种保护的指导值为 350、600、830 和 1300μg/L。这些结果将有助于为基于石墨烯的纳米材料未来的水质指导值的监管推导做出贡献。环境毒理化学 2018；37:1340-1348。©2018 SETAC。
