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Acute Toxicity of a Tire Rubber-Derived Chemical, 6PPD Quinone, to Freshwater Fish and Crustacean Species
Environmental Science & Technology Letters ( IF 8.9 ) Pub Date : 2021-08-10 , DOI: 10.1021/acs.estlett.1c00453 Kyoshiro Hiki 1 , Kenta Asahina 2 , Kota Kato 1, 3 , Takahiro Yamagishi 1 , Ryo Omagari 1 , Yuichi Iwasaki 4 , Haruna Watanabe 1 , Hiroshi Yamamoto 1
Environmental Science & Technology Letters ( IF 8.9 ) Pub Date : 2021-08-10 , DOI: 10.1021/acs.estlett.1c00453 Kyoshiro Hiki 1 , Kenta Asahina 2 , Kota Kato 1, 3 , Takahiro Yamagishi 1 , Ryo Omagari 1 , Yuichi Iwasaki 4 , Haruna Watanabe 1 , Hiroshi Yamamoto 1
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N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine-quinone, also known as 6PPD quinone, was recently identified as a toxic chemical that causes acute mortality in coho salmon following exposure to urban runoff. Despite its potential occurrence in receiving waters worldwide, there is no information about the toxicity of 6PPD quinone to other aquatic species. In this study, to assess the aquatic toxicity of 6PPD quinone to freshwater fish and crustacean species, we performed standardized 48–96 h acute toxicity tests of 6PPD quinone with four species (Danio rerio, Oryzias latipes, Daphnia magna, and Hyalella azteca). In contrast to the high toxicity observed in coho salmon in a previous study (24 h LC50 of 0.79 μg/L), 6PPD quinone did not exhibit acute lethal toxicity to any species at its maximum water solubility. The absence of acute lethality of 6PPD quinone to tested species indicates that the urban runoff toxicity observed for the species can be attributed to other chemicals. The observed large discrepancy in toxicity (by a factor of ∼100) might be due to the specific toxicity of 6PPD quinone to coho salmon. Further research is needed to reveal the underlying mechanisms of the observed difference, which will be useful for both urban runoff management and aquatic toxicology.
中文翻译：
轮胎橡胶衍生化学品 6PPD 醌对淡水鱼和甲壳类物种的急性毒性
N -(1,3-二甲基丁基)- N '-苯基-对苯二胺-醌，也称为 6PPD 醌，最近被确定为一种有毒化学物质，可导致银鲑鱼在暴露于城市径流后急性死亡。尽管它可能发生在世界各地的接收水域，但没有关于 6PPD 醌对其他水生物种的毒性的信息。在本研究中，为了评估 6PPD 醌对淡水鱼和甲壳类物种的水生毒性，我们对 6PPD 醌对四种物种（Danio rerio、Oryzias latipes、Daphnia magna和Hyalella azteca）进行了 48-96 小时的标准化急性毒性试验。）。与先前研究中在银鲑鱼中观察到的高毒性（24 小时 LC 50为 0.79 μg/L）相比，6PPD 醌在其最大水溶性时不会对任何物种表现出急性致死毒性。6PPD 醌对受试物种没有急性致死性表明，观察到的物种的城市径流毒性可归因于其他化学物质。观察到的毒性的巨大差异（约 100 倍）可能是由于 6PPD 醌对银鲑鱼的特定毒性。需要进一步的研究来揭示观察到的差异的潜在机制，这对城市径流管理和水生毒理学都有用。
更新日期：2021-09-14
中文翻译：
轮胎橡胶衍生化学品 6PPD 醌对淡水鱼和甲壳类物种的急性毒性
N -(1,3-二甲基丁基)- N '-苯基-对苯二胺-醌，也称为 6PPD 醌，最近被确定为一种有毒化学物质，可导致银鲑鱼在暴露于城市径流后急性死亡。尽管它可能发生在世界各地的接收水域，但没有关于 6PPD 醌对其他水生物种的毒性的信息。在本研究中，为了评估 6PPD 醌对淡水鱼和甲壳类物种的水生毒性，我们对 6PPD 醌对四种物种（Danio rerio、Oryzias latipes、Daphnia magna和Hyalella azteca）进行了 48-96 小时的标准化急性毒性试验。）。与先前研究中在银鲑鱼中观察到的高毒性（24 小时 LC 50为 0.79 μg/L）相比，6PPD 醌在其最大水溶性时不会对任何物种表现出急性致死毒性。6PPD 醌对受试物种没有急性致死性表明，观察到的物种的城市径流毒性可归因于其他化学物质。观察到的毒性的巨大差异（约 100 倍）可能是由于 6PPD 醌对银鲑鱼的特定毒性。需要进一步的研究来揭示观察到的差异的潜在机制，这对城市径流管理和水生毒理学都有用。
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