Unveiling spatiotemporal distribution, partitioning, and transport mechanisms of tire additives and their transformation products in a highly urbanized estuarine region.

IF 8.2 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES
Science of the Total Environment Pub Date : 2024-12-01 Epub Date: 2024-10-09 DOI:10.1016/j.scitotenv.2024.176804
Hai-Yan Zhang, Yue-Hong Liu, Li-Ni Wei, Rui-Qi Zhu, Jian-Liang Zhao, Shan Liu, Xiang-Rong Xu, Guang-Guo Ying
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引用次数: 0

Abstract

Numerous tire additives are high-production volume chemicals that are used extensively worldwide. However, their presence and partitioning behavior remain largely unknown, particularly in marine environments. This study is the first to reveal the spatiotemporal distribution, multimedia partitioning, and transport processing of 22 tire additives and their transformation products (TATPs) in a highly urbanized estuary (n = 166). Nineteen, 18, and 20 TATPs were detectable in water, suspended particulate matter (SPM), and sediments, respectively, with total levels of 59.7-2021 ng/L, 164-6935 ng/g, and 4.66-58.4 ng/g, respectively. The multimedia partitioning mechanisms of TATPs are governed by their molecular weight, hydrophobicity, and biodegradation rate. Mass inventories coupled with model simulations have revealed that substantial quantities of TATPs accumulate within estuarine environments, and these compounds can be continuously transported into the ocean, particularly during the wet season. According to the multi-criteria evaluation approach, four and three TATPs were identified as high-priority pollutants during the dry and wet seasons, respectively. Unexpectedly, N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone was only listed as a medium-priority pollutant. This study underscores the importance of marine surveillance and advocates for particular attention to these ubiquitous but underexplored TATPs in future studies.

揭示高度城市化河口地区轮胎添加剂及其转化产物的时空分布、分配和迁移机制。
许多轮胎添加剂都是高产量化学品,在全球范围内被广泛使用。然而,它们的存在和分区行为在很大程度上仍不为人所知,尤其是在海洋环境中。本研究首次揭示了 22 种轮胎添加剂及其转化产物(TATPs)在一个高度城市化的河口(n = 166)的时空分布、多媒体分区和迁移过程。在水、悬浮颗粒物 (SPM) 和沉积物中分别检测到 19、18 和 20 种 TATPs,总含量分别为 59.7-2021 纳克/升、164-6935 纳克/克和 4.66-58.4 纳克/克。TATPs 的多媒体分配机制受其分子量、疏水性和生物降解速率的影响。质量清单和模型模拟显示,大量 TATPs 在河口环境中累积,这些化合物会不断迁移到海洋中,尤其是在雨季。根据多标准评估方法,旱季和雨季分别有四种和三种 TATPs 被确定为高优先级污染物。意外的是,N-(1,3-二甲基丁基)-N'-苯基对苯二胺醌仅被列为中度优先污染物。这项研究强调了海洋监测的重要性,并主张在今后的研究中特别关注这些无处不在但却未得到充分探索的 TATPs。
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来源期刊
Science of the Total Environment
Science of the Total Environment 环境科学-环境科学
CiteScore
17.60
自引率
10.20%
发文量
8726
审稿时长
2.4 months
期刊介绍: The Science of the Total Environment is an international journal dedicated to scientific research on the environment and its interaction with humanity. It covers a wide range of disciplines and seeks to publish innovative, hypothesis-driven, and impactful research that explores the entire environment, including the atmosphere, lithosphere, hydrosphere, biosphere, and anthroposphere. The journal's updated Aims & Scope emphasizes the importance of interdisciplinary environmental research with broad impact. Priority is given to studies that advance fundamental understanding and explore the interconnectedness of multiple environmental spheres. Field studies are preferred, while laboratory experiments must demonstrate significant methodological advancements or mechanistic insights with direct relevance to the environment.
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