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Figure 2 | Particle and Fibre Toxicology

Figure 2

From: In vitro toxicity of particulate matter (PM) collected at different sites in the Netherlands is associated with PM composition, size fraction and oxidative potential - the RAPTES project

Figure 2

TNF-α produced by RAW 264.7 macrophages after 16 hours incubation with the PM samples. Each bar shows mean ± standard deviation of two exposures in triplicate. Data was analyzed using multiple linear regression. * Statistically significant different from no concentration-response p < 0.05. × Sample excluded because of high endotoxin level. · Highest concentration not tested (not enough sample).

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