Inhalation of Nebulized Diesel Particulate Matter: A Safety Trial in Healthy Humans

Figure 3

Serum granulocyte macrophage colony-stimulating factor (GM-CSF) levels measured by ELISA at baseline (BL), 2 h, and 24 h after exposure to saline or varying doses of DPM. Data are shown as mean ± SEM. *Significant difference from baseline and ^†significant difference from saline at a given timepoint, as determined by repeated measures ANOVA.