The assessment of 6PPDQ toxicity to other aquatic species has expanded, but it has focused on fish. This study investigated the toxicity of 6PPDQ to four freshwater invertebrate species, larval burrowing mayfly (Hexagenia spp.), juvenile cladoceran (Daphnia magna), file ramshorn snail embryo (...
These data support prior relative comparisons of the occurrence and toxicity while confirming the substantial lethality of 6PPD-Q. While environmental concentrations are expected to be lower, 6PPD-Q also was more toxic than previously calculated and should be categorized as a "very highly toxic" ...
The assessment of 6PPDQ toxicity to other aquatic species has expanded, but it has focused on fish. This study investigated the toxicity of 6PPDQ to four freshwater invertebrate species, larval burrowing mayfly (Hexagenia spp.), juvenile cladoceran (Daphnia magna), file ramshorn snail embryo (...
6PPD is an ozone scavenger used to help protect tires from degradation. While 6PPD does not appear to have significant toxicity, 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 ...
N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) is a widely used additive for protecting various rubber products, and its product of oxidation N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine-quinone (6PPDQ) has attracted extensive attention...
Treatment options, including green stormwater infrastructure like treatment ponds and bioswales, are being explored. The NMFS’s Northwest Fisheries Science Center is also researching additional aspects of stormwater toxicity on Pacific Salmon and other listed fish and aquatic species. ...
2020). It has been demonstrated that some organisms may indiscriminately consume tire material and that this route of exposure may cause short-term and long-term toxicity to aquatic organisms (Wik and Dave 2009; Redondo-Hasselerharm et al. 2018; Khan et al. 2019; Halle et al. 2020). ...
However, there remains a paucity of 6PPD-quinone toxicity values developed for estuarine fish species, which is particularly significant because estuaries receiving inflows from highly urbanized watersheds are especially vulnerable to TWP contamination. Therefore, the present study aimed to determine the ...
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 similar to 100) might be due to the specific toxicity of 6PPD ...
The rubber antioxidant 6PPD has gained significant attention due to its highly toxic transformation product, 6PPD-quinone (6PPDQ). Despite their detection in urines of pregnant women, the placental transfer and developmental toxicity of 6PPD and 6PPDQ_are unknown. Here, we treated CS7B1/6 mice wi...