Fig. 5: White blood cell counts and markers of inflammation.

a,b, Inflammatory cell counts (a) and inflammatory cytokine concentrations (b) for exposure to air, s-GO and us-GO. The dotted lines represent the expected upper and lower limits of normal values. The coloured bars and error bars show mean ± s.d. (n = 12 for air and us-GO groups, n = 11 for s-GO groups; biologically independent measurements). No significant differences were found between treatments (two-way analysis of variance followed by Tukey’s post hoc test).