Increased inflammation and oxidative stress caused by accumulated metal particle exposure among metro station staff.

ABSTRACT: Metro is a significant part of world transport, delivering over 58 billion passengers annually. Train operation processes generated PM rich in heavy metals in the station, but the natural ventilation underground is poor leading to a high PM exposure indoors. Though PM pollution in metro stations was reported widely, there is limited evidence of the adverse health effect of metro station PM. This study collected urinary samples from 74 metro station staff from three different metro stations in Tianjin for 8-OHdG, IL-6, MDA, GSH and T-AOC tests using commercial kits. PM samples were collected for metal composition tests using ICP-MS and oxidative potential test using DTT method. The average PM2.5 concentration was 31.5 ± 12.4 μg/m3, meeting the Standard for indoor air quality in China. Howev

SUBMITTER: Wang Z 

PROVIDER: S-EPMC12694840 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature