<br>轮胎橡胶相关污染物 6PPD 和 6PPD-Q 的环境归宿：综述,Environmental Research

当前位置： X-MOL 学术 › Environ. Res. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

轮胎橡胶相关污染物 6PPD 和 6PPD-Q 的环境归宿：综述
Environmental Research ( IF 7.7 ) Pub Date : 2024-06-25 , DOI: 10.1016/j.envres.2024.119492
Stanley Chukwuemeka Ihenetu ₁ , Qiao Xu ₂ , Zulqarnain Haider Khan ₂ , Syed Shabi Ui Hassan Kazmi ₂ , Jing Ding ₃ , Qian Sun ₄ , Gang Li ₁

Affiliation

为了提高轮胎的耐久性，橡胶中使用了抗氧化剂 N-（1,3-二甲基丁基）-N′-苯基对苯二胺（6PPD），但当暴露于臭氧（O3）等氧化剂时，它会转化为有毒的 6PPD 醌（6PPD-Q），引起生态问题。本综述综合了现有数据，以评估两种轮胎衍生污染物 6PPD 和 6PPD-Q 的转化、生物利用度和潜在危害。分析了将轮胎和塑料等废料重新利用为有价值产品所采用的不同热方法的比较分析。这些方法阐明了热解和催化转化过程的各个方面，为优化废物价值化和减轻环境影响提供了有价值的观点。此外，我们根据本综述中包含的文献研究了轮胎制造中使用的化学品的生物利用度和潜在危害。这些化学物质的生物利用度，特别是 6PPD 向 6PPD-Q 的转化，构成了重大的生态风险。6PPD-Q 在水生环境中具有很高的生物利用度，表明它可能造成广泛的生态危害。6PPD-Q 在环境中的持久性和流动性，以及其毒理学影响，凸显了持续监测和制定有效缓解策略以减少其对人类健康和生态系统影响的迫切需求。未来的研究应侧重于了解低水平接触这些化合物对陆地和水生生态系统的慢性影响，以及食物链中生物积累的可能性。此外，本综述概述了知识差距，建议进一步研究轮胎衍生污染物在生物体中的毒性以及对人类和生态系统的健康影响。

"点击查看英文标题和摘要"

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

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. This review synthesizes the existing data to assess the transformation, bioavailability, and potential hazards of two tire-derived pollutants 6PPD and 6PPD-Q. The comparative analysis of different thermal methods utilized in repurposing waste materials like tires and plastics into valuable products are analyzed. These methods shed light on the aspects of pyrolysis and catalytic conversion processes, providing valuable perspectives into optimizing the waste valorization and mitigating environmental impacts. Furthermore, we have examined the bioavailability and potential hazards of chemicals used in tire manufacturing, based on the literature included in this review. The bioavailability of these chemicals, particularly the transformation of 6PPD to 6PPD-Q, poses significant ecological risks. 6PPD-Q is highly bioavailable in aquatic environments, indicating its potential for widespread ecological harm. The persistence and mobility of 6PPD-Q in the environment, along with its toxicological effects, highlight the critical need for ongoing monitoring and the development of effective mitigation strategies to reduce its impact on both human health and ecosystem. Future research should focus on understanding the chronic effects of low-level exposure to these compounds on both terrestrial and aquatic ecosystems, as well as the potential for bioaccumulation in the food chain. Additionally, this review outlines the knowledge gaps, recommending further research into the toxicity of tire-derived pollutants in organisms and the health implications for humans and ecosystems.

更新日期：2024-06-25

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南