6PPD-quinone made a major impact in the world of environmental analysis in 2021 when it was identified as the primary cause of death to Coho salmon in the Pacific Northwestern United States. 6PPD-quinone is an oxidative by-product of antioxidant/antidegradant 6PPD (N-(1,3-dimethylbutyl)-N'-...
ICF: What are the impacts of 6PPD-quinone on wildlife and the environment? Forrest Carpenter:6PPD has been linked to pre-spawn mortality of Puget Sound coho salmon. Puget Sound is a highly urbanized area with many streams and rivers supporting salmon andsteelhead. Researchers began looking into ...
when it reacts with ozone it transforms into several different byproducts, including 6PPD-quinone. A recent study has determined that 6PPD-quinone is highly toxic to coho salmon, resulting in death when exposure to sufficiently high concentrations via stormwater...
Recently, large-scale fish kills in the Pacific Northwest were linked to tire wear particles (TWPs) left on roadways, with the lethality attributed to 6PPD-quinone. which has a median lethal concentration of <1 g/L for selected salmonids. However, there remains a paucity of 6PPD-quinone ...
Stormwater exposure can cause acute mortality of coho salmon ( Oncorhynchus kisutch ), and 6PPD-quinone (6PPD-Q) was identified as the primary causal toxicant. Commercial standards of 6PPD-Q recently became available; their analysis highlighted a systematic high bias in prior reporting concerning 6PPD...
摘要: N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone(6PPDQ)has attracted significant attention due to its highly acute lethality to sensitive salmonids.However,studies investigating the mechanisms underlying its acute toxicity have been lacking.In this work,we demonstrated the sensitivity ...
在众多颗粒中,含有N-(1,3-二甲基丁基)-N′-苯基对苯二胺(6PPD)的化合物因其氧化产物6PPD醌(6PPD-Q)自20世纪90年代以来对西北太平洋的升麻显示出急性毒性而受到越来越多的关注(Scholz et al.,2011)。据估计,仅在美国,TWP的6PPD-Q估计每年约为1900吨(Hu等人,2022)。Tian等人(2021)通过假设环境中6PPD通过...
The first real breakthrough happened when they tested actual runoff collected from a nearby road and exposed test salmon to it. The fish died within hours. “The harder step was delving into what could be in that stormwa...
6PPDQ may contribute to the acute mortality of coho salmon through uncoupling of the mitochondrial electron transport chain or disruption of the blood-brain barrier (Mahoney et al., 2022). Both 6PPD and 6PPDQ can enter the circulatory system and subsequently affect the nervous system of zebrafis...
6ppd remains a focus for the U.S. Tire Manufacturers Association. Here are 4 things you need to know about 6ppd, 6ppd-quinone and the environmental studies surrounding it.