Tire Rubber-Derived Cyclic Amines in Urban Ambient Particulate Matter in Shanghai.

ABSTRACT: Tire wear compounds (TWCs) and their byproducts have raised increasing environmental and health concerns due to their widespread production and release. In this study, a custom-designed versatile aerosol concentration enrichment system coupled with HPLC-Q-TOF-MS was employed to conduct a nontargeted screening of suspect TWCs in urban PM_2.5, followed by the targeted quantification of ten selected TWCs, providing high temporal resolution data across summer, autumn, and winter in Shanghai. The total TWC concentrations (∑TWCs) exhibited distinct seasonal variations. The highest levels were observed in autumn, with an average concentration of 15.53 ng/m³ (ranging from 1.39 to 58.67 ng/m³), followed by summer with an average of 7.44 ng/m³ (2.22 to 25.3

SUBMITTER: Abudumutailifu M 

PROVIDER: S-EPMC12262421 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature