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Fig. 2 | Particle and Fibre Toxicology

Fig. 2

From: Road tunnel-derived coarse, fine and ultrafine particulate matter: physical and chemical characterization and pro-inflammatory responses in human bronchial epithelial cells

Fig. 2

Organic carbon (OC) levels in PM sampled from the road tunnels. The figure includes the OC-content of coarse, fine and ultrafine PM samples from the two tunnels as obtained by increasing temperatures: 310 °C; 475 °C; 615 °C; 870 °C as indicated in the figure. The data represent the mean ± SEM of 3 analyses

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Particle and Fibre Toxicology

ISSN: 1743-8977

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