Utility of benzothiazoles as markers of tire-derived inputs to estuarine waters assessed by polyethylene sheets

Wu, Chen-Chou; Chen, Li-Huan; Wang, Zhen; Bao, Lian-Jun; Lin, Song; Zeng, Eddy Y.

doi:10.1016/j.envpol.2021.118571

Cited by 3 publications

(2 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4−7 Field investigations have confirmed that BTHs can serve as indicators for tracking tire-related pollutants in urban runoff. 8,9 9,9-Dimethyl-9,10-dihydroacridine (BLE) is a rubber protective additive. 10 1,3-Dicyclohexylurea (DCU) was identified in the tire leachates.…”

Section: Introductionmentioning

confidence: 99%

“…PPDs, including N -(1,3-dimethylbutyl)- N ′-phenyl- p -phenylenediamine (6PPD), N , N ′-diphenyl- p -phenylenediamine (DPPD), N , N ′-bis(2-methylphenyl)-1,4-benzenediamine (DTPD), and N -isopropyl- N ′-phenyl-1,4-phenylenediamine (IPPD), are a significant group of antioxidants in rubber-related products, and most of them are high-production-volume chemicals. , PPDQs, namely, 6PPD-Q, DPPD-Q, and DTPD-Q, are the transformation products of their corresponding parent compounds. Regarding other industrial additives, 1 H -benzotriazole (BT), benzothiazole (BTH), 2-hydroxybenzothiazole (2-OH-BTH), 2-(methylthio)benzothiazole (2-Me-S-BTH), and N , N -dicyclohexyl-2-benzothiazolesulfenamide (DCBS) are extensively utilized as vulcanization accelerators in tire manufacturing and rubber products. − Field investigations have confirmed that BTHs can serve as indicators for tracking tire-related pollutants in urban runoff. , 9,9-Dimethyl-9,10-dihydroacridine (BLE) is a rubber protective additive . 1,3-Dicyclohexylurea (DCU) was identified in the tire leachates .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

First Evidence of the Bioaccumulation and Trophic Transfer of Tire Additives and Their Transformation Products in an Estuarine Food Web

Wei,

Wu,

et al. 2024

Environ. Sci. Technol.

View full text Add to dashboard Cite

The discovery of the significant lethal impacts of the tire additive transformation product N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine quinone (6PPD-Q) on coho salmon has garnered global attention. However, the bioaccumulation and trophic transfer of tire additives and their transformation products (TATPs) within food webs remain obscure. This study first characterized the levels and compositions of 15 TATPs in the Pearl River Estuary, estimated their bioaccumulation and trophic transfer potential in 21 estuarine species, and identified priority contaminants. Our observations indicated that TATPs were prevalent in the estuarine environment. Eight, six, seven, and 10 TATPs were first quantified in the shrimp, sea cucumber, snail, and fish samples, with total mean levels of 45, 56, 64, and 67 ng/g (wet weight), respectively. N,N′-Diphenyl-p-phenylenediamine (DPPD) and N,N′-bis(2-methylphenyl)-1,4-benzenediamine (DTPD) exhibited high bioaccumulation. Significant biodilution was only identified for benzothiazole, while DPPD and DTPD displayed biomagnification trends based on Monte Carlo simulations. The mechanisms of bioaccumulation and trophodynamics of TATPs could be explained by their chemical hydrophobicity, molecular mass, and metabolic rates. Based on a multicriteria scoring technique, DPPD, DTPD, and 6PPD-Q were characterized as priority contaminants. This work emphasizes the importance of biomonitoring, particularly for specific hydrophobic tire additives.

show abstract

Section: Introductionmentioning

confidence: 99%