Results 221 to 230 of about 362,650 (298)

Tire-rubber related pollutant 6-PPD quinone: A review of its transformation, environmental distribution, bioavailability, and toxicity.

Journal of Hazardous Materials, 2023
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 via the reaction of 6-PPD with O3. Due to its acute lethality in coho salmon,
Xin Hua, Dayong Wang
semanticscholar   +1 more source

Transformation Products of Tire Rubber Antioxidant 6PPD in Heterogeneous Gas-Phase Ozonation: Identification and Environmental Occurrence.

Environmental Science and Technology, 2023
6PPD, a tire rubber antioxidant, poses substantial ecological risks because it can form a highly toxic quinone transformation product (TP), 6PPD-quinone (6PPDQ), during exposure to gas-phase ozone.
H. Zhao, Ximin Hu, Z. Tian, Melissa Gonzalez, Craig A. Rideout, Katherine T. Peter, Michael C. Dodd, Edward P. Kolodziej   +7 more
semanticscholar   +1 more source

Acute Toxicity of the Tire Rubber-Derived Chemical 6PPD-quinone to Four Fishes of Commercial, Cultural, and Ecological Importance

Environmental Science & Technology Letters, 2022
: N -(1,3-Dimethylbutyl)- N ′ -phenyl- p -phenylenedi-amine-quinone (6PPD-quinone), a transformation product of the rubber tire antioxidant 6PPD, has recently been identi fi ed as the chemical responsible for urban runo ff mortality syndrome in coho salmon,
M. Brinkmann, David Montgomery, Summer Selinger, Justin G P Miller, Eric Stock, A. J. Alcaraz, J. Challis, L. Weber, D. Janz, Markus Hecker, S. Wiseman   +10 more
semanticscholar   +1 more source

Chemical characteristics, leaching, and stability of the ubiquitous tire rubber-derived toxicant 6PPD-quinone.

Environmental Science: Processes & Impacts, 2023
We here report chemical characteristics relevant to the fate and transport of the recently discovered environmental toxicant 6PPD-quinone (2-((4-methylpentan-2-yl)amino)-5-(phenylamino)cyclohexa-2,5-diene-1,4-dione or "6PPDQ").
Ximin Hu, H. Zhao, Z. Tian, Katherine T. Peter, Michael C. Dodd, Edward P. Kolodziej   +5 more
semanticscholar   +1 more source

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

Science, 2020
Tire tread particles turn streams toxic 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 ...
Z. Tian, H. Zhao, Katherine T. Peter, Melissa Gonzalez, Jill Wetzel, Christopher Wu, Ximin Hu, J. Prat, Emma Mudrock, Rachel Hettinger, Allan E Cortina, Rajshree Ghosh Biswas, F. Kock, R. Soong, A. Jenne, Bowen Du, F. Hou, Huan He, Rachel A. Lundeen, Alicia Gilbreath, R. Sutton, N. Scholz, Jay W. Davis, Michael C. Dodd, A. Simpson, J. McIntyre, Edward P. Kolodziej   +26 more
semanticscholar   +1 more source

Toxicological effects of tire rubber-derived 6PPD-quinone, a species-specific toxicant, and dithiobisbenzanilide (DTBBA) in the marine rotifer Brachionus koreanus.

Marine Pollution Bulletin, 2023
The ingredients of tire-rubber products include a complex range of chemicals additives, most of which are leached into surrounding water as unmeasured toxicants with unexplored ecotoxicological impacts.
U. Maji, Kyu-Hyung Kim, In-Cheol Yeo, Kyu-Young Shim, Chang-Bum Jeong   +4 more
semanticscholar   +1 more source

Reaction mechanism and rheological properties of waste cooking oil pre-desulfurized crumb tire rubber/SBS composite modified asphalt

, 2021
Waste cooking oil (WCO) is proved to be effective in desulfurization of crumb tire rubber (CTR), which can be considered as a sustainable desulfurization technology and an alternative way to solve the poor storage stability of asphalt rubber.
Mengzhen Zhao, Ruikun Dong
semanticscholar   +1 more source

Chemical surface etching methods for ground tire rubber as sustainable approach for environmentally-friendly composites development– a review

, 2021
Ground tire rubber (GTR) has been used as a sustainable low-cost modifier in various composites. However, due to the hydrophobic nature of GTR, it is in compatible with most matrices and results in deterioration in both mechanical and physical properties
M. M. Phiri, M. J. Phiri, K. Formela, S. Hlangothi   +3 more
semanticscholar   +1 more source

Environmental fate of tire-rubber related pollutants 6PPD and 6PPD-Q: A Review.

Environmental Research
To enhance tire durability, the antioxidant N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) is used in rubber, but it converts into the toxic 6PPD quinone (6PPD-Q) when exposed to oxidants like ozone (O3), causing ecological concerns.
S. Ihenetu, Qiao Xu, Zulqarnain H. Khan, Syed S.H. Kazmi, Jing Ding, Qian Sun, Gang Li   +6 more
semanticscholar   +1 more source

Determining the properties of semi-flexible pavement using waste tire rubber powder and natural zeolite

, 2021
The small amount of bitumen contained in semi-flexible pavement (SFP) causes the peeling of the aggregate grains, therefore, it is necessary to include some additives such as waste tire rubber (WTR) to increase the adhesion.
Hamzani, Munirwansyah, M. Hasan, S. Sugiarto   +3 more
semanticscholar   +1 more source