Chemical characterisation of the coarse and fine particulate matter in the environment of an underground railway system: cytotoxic effects and oxidative stress-a preliminary study.

Int J Environ Res Public Health · 2015 · PMC4410231 · PMID 25872016

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highly significantp < 0.001actually significant

In addition, only the PM components with a diameter less than 2.5 μm were able to determine a statistically significant reduction in cellular activity ( p < 0.01) in both B3 and C3 samples and a highly significant reduction in D3 ( p < 0.001).

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