A ubiquitous tire rubber–derived chemical induces acute mortality in coho salmon

doi:10.1126/science.abd6951

GSTDTAP > 气候变化

DOI	10.1126/science.abd6951
	A ubiquitous tire rubber–derived chemical induces acute mortality in coho salmon
	Zhenyu Tian; Haoqi Zhao; Katherine T. Peter; Melissa Gonzalez; Jill Wetzel; Christopher Wu; Ximin Hu; Jasmine Prat; Emma Mudrock; Rachel Hettinger; Allan E. Cortina; Rajshree Ghosh Biswas; Flávio Vinicius Crizóstomo Kock; Ronald Soong; Amy Jenne; Bowen Du; Fan Hou; Huan He; Rachel Lundeen; Alicia Gilbreath; Rebecca Sutton; Nathaniel L. Scholz; Jay W. Davis; Michael C. Dodd; Andre Simpson; Jenifer K. McIntyre; Edward P. Kolodziej
	2021-01-08
发表期刊	Science
出版年	2021
英文摘要	For coho salmon in the U.S. Pacific Northwest, returning to spawn in urban and suburban streams can be deadly. Regular acute mortality events are tied, in particular, to stormwater runoff, but the identity of the causative toxicant(s) has not been known. Starting from leachate from new and aged tire tread wear particles, Tian et al. followed toxic fractions through chromatography steps, eventually isolating a single molecule that could induce acute toxicity at threshold concentrations of ∼1 microgram per liter. The compound, called 6PPD-quinone, is an oxidation product of an additive intended to prevent damage to tire rubber from ozone. Measurements from road runoff and immediate receiving waters show concentrations of 6PPD-quinone high enough to account for the acute toxicity events. Science , this issue p. [185][1] In U.S. Pacific Northwest coho salmon ( Oncorhynchus kisutch ), stormwater exposure annually causes unexplained acute mortality when adult salmon migrate to urban creeks to reproduce. By investigating this phenomenon, we identified a highly toxic quinone transformation product of N -(1,3-dimethylbutyl)- N ′-phenyl-p-phenylenediamine (6PPD), a globally ubiquitous tire rubber antioxidant. Retrospective analysis of representative roadway runoff and stormwater-affected creeks of the U.S. West Coast indicated widespread occurrence of 6PPD-quinone (<0.3 to 19 micrograms per liter) at toxic concentrations (median lethal concentration of 0.8 ± 0.16 micrograms per liter). These results reveal unanticipated risks of 6PPD antioxidants to an aquatic species and imply toxicological relevance for dissipated tire rubber residues. [1]: /lookup/doi/10.1126/science.abd6951
领域	气候变化 ; 资源环境
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/310451
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Zhenyu Tian,Haoqi Zhao,Katherine T. Peter,等. A ubiquitous tire rubber–derived chemical induces acute mortality in coho salmon[J]. Science,2021.
APA	Zhenyu Tian.,Haoqi Zhao.,Katherine T. Peter.,Melissa Gonzalez.,Jill Wetzel.,...&Edward P. Kolodziej.(2021).A ubiquitous tire rubber–derived chemical induces acute mortality in coho salmon.Science.
MLA	Zhenyu Tian,et al."A ubiquitous tire rubber–derived chemical induces acute mortality in coho salmon".Science (2021).