Driving Scenarios Strongly Influence Tire Additive Accumulation in Road Dust: First Field Evidence from China's Urban Roads.
- 1Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
- 2State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Abstract
Tire additives (TAs) are of growing concern due to their widespread occurrence and potential toxicity. However, the role of driving scenarios in modulating their release remains poorly understood. This study examined a broad range of TAs in road dust collected from two typical urban road scenarios in China. A total of 138 TAs were detected, including 14 compounds reported in road dusts for the first time. Driving scenarios strongly influenced the TA concentrations and composition. On urban roads, crossroads (characterized by frequent braking, turning, and stop-and-go traffic) exhibited higher TA concentrations (median: 5.46 × 10⁴ ng/g) than straight road segments (median: 3.57 × 10⁴ ng/g). Vulcanization accelerators (VAs) and antioxidants (AOs) served as sensitive tracers of TA release across different driving scenarios. Importantly, TA accumulation in road dust was also governed by physicochemical properties, with lower molecular weights, stronger hydrophobicity, and higher organic carbon affinity associated with elevated concentrations. Preliminary exposure assessment indicated elevated TA exposure risk among children residing near crossroads. These findings indicate that driving scenarios are likely important factors influencing the accumulation of traffic-related TAs and highlight the potential need for scenario-specific mitigation strategies.
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BibTeX
@article{su2026driving,
title = {{Driving Scenarios Strongly Influence Tire Additive Accumulation in Road Dust: First Field Evidence from China's Urban Roads.}},
author = {Pinjie Su and Jie Shen and Zihan Wang and Chenxi Huo and Jiefeng Liang and Guangbo Qu and Runzeng Liu},
journal = {Environment \& health (Washington, D.C.)},
year = {2026},
month = jun,
doi = {10.1021/envhealth.6c00168},
url = {https://europepmc.org/article/MED/42903711},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Driving Scenarios Strongly Influence Tire Additive Accumulation in Road Dust: First Field Evidence from China's Urban Roads.
AU - Pinjie Su
AU - Jie Shen
AU - Zihan Wang
AU - Chenxi Huo
AU - Jiefeng Liang
AU - Guangbo Qu
AU - Runzeng Liu
PY - 2026
DA - 2026/06/15
JO - Environment & health (Washington, D.C.)
DO - 10.1021/envhealth.6c00168
UR - https://europepmc.org/article/MED/42903711
AB - Tire additives (TAs) are of growing concern due to their widespread occurrence and potential toxicity. However, the role of driving scenarios in modulating their release remains poorly understood. This study examined a broad range of TAs in road dust collected from two typical urban road scenarios in China. A total of 138 TAs were detected, including 14 compounds reported in road dusts for the first time. Driving scenarios strongly influenced the TA concentrations and composition. On urban roads, crossroads (characterized by frequent braking, turning, and stop-and-go traffic) exhibited higher TA concentrations (median: 5.46 × 10⁴ ng/g) than straight road segments (median: 3.57 × 10⁴ ng/g). Vulcanization accelerators (VAs) and antioxidants (AOs) served as sensitive tracers of TA release across different driving scenarios. Importantly, TA accumulation in road dust was also governed by physicochemical properties, with lower molecular weights, stronger hydrophobicity, and higher organic carbon affinity associated with elevated concentrations. Preliminary exposure assessment indicated elevated TA exposure risk among children residing near crossroads. These findings indicate that driving scenarios are likely important factors influencing the accumulation of traffic-related TAs and highlight the potential need for scenario-specific mitigation strategies.
SN - 2833-8278
ER -