Fig. 3From: Acute exposure to wood smoke from incomplete combustion - indications of cytotoxicityIn-vitro data on a Cell metabolic activity, b percent of propidium iodide (PI) positive cells, c percent of subG1 cells and d olive tail moment (OTM) in RAW264.7 macrophages after exposure for 24 h to four doses (15, 50, 150 and 300 μg ml−1) of cell medium suspended particles collected from a wood log combustion. Each whisker represents the standard error of the mean (SEM). The asterisks (*) indicate a statistically significant difference from control cells (p < 0.05, Dunnett’s test or Mann–Whitney U -test)Back to article page