The antioxidant 6-PPD has been widely used to prevent cracking and thermal oxidative
degradation and to extend the service life of tire rubber. 6-PPD quinone (6-PPDQ) is formed …

Abstract Tire wear compounds N-(1, 3-dimethylbutyl)-N′-phenyl-p-phenylenediamine
(6PPD) and its derivative 6PPD-quinone have been considered as emerging pollutants and …

In US Pacific Northwest coho salmon (Oncorhynchus kisutch), stormwater exposure
annually causes unexplained acute mortality when adult salmon migrate to urban creeks to …

N-(1, 3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine-quinone (6PPD-quinone), a
transformation product of the rubber tire antioxidant 6PPD, has recently been identified as …

Tire road wear particles (TRWPs) are one of the largest sources of microplastics to the urban
environment with recent concerns as they also provide a pathway for additive chemicals to …

The antiozonant N-phenyl-N'-(1, 3-dimethylbutyl)-p-phenylenediamine (6-PPD) is added to
tires to increase their lifetime and is emitted with tire and road wear particles into the …

p-Phenylenediamines (PPDs) are widely used as antioxidants in tire rubber, and their
derived quinone transformation products (PPD-Qs) may pose a threat to marine ecosystems …

N-(1, 3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine-quinone, also known as 6PPD-
quinone (6PPD-Q), was recently identified as the toxic chemical that causes acute mortality …

N-(1, 3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) and its quinone derivative,
6PPD-quinone (6PPD-Q), have been found to be prevalent in the environment, but there are …

Recently, roadway releases of N, N′-substituted p-phenylenediamine (PPD) antioxidants
and their transformation products (TPs) received significant attention due to the highly toxic …