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Figure 3 | Particle and Fibre Toxicology

Figure 3

From: Toxicological properties of emission particles from heavy duty engines powered by conventional and bio-based diesel fuels and compressed natural gas

Figure 3

A. Apoptosis assessed with flow cytometric detection of permeabilized cells after a 24-h exposure of RAW 264.7 macrophages to emission PM samples from EURO IV engine run with different fuel/DOC + POC catalytic converter combinations. And B. Genotoxicity assessed with the comet assay. Bars present blank levels and responses to three PM doses (50, 150 and 300 μg ml-1) and whiskers show the standard error of the mean (SEM). Asterisks indicate statistically significant differences from the blank control (Kruskall Wallis; p < 0.05). Numbers refer to a significantly larger response (Dunnett’s C test; p < 0.05) compared to the indicated fuel/catalytic converter combination: 1) EN590, 2) EN590 + cat, 3) 30% HVO, 4) 100% HVO, 5) HVO + cat 6) 30% RME, 7) 100% RME, and 8) CNG bus.

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