Figure 2.
Fetal black carbon load
Presence of intra-tissue black carbon particles in the fetal liver (A), lung (B), brain (C), and preterm placenta (D) samples, as indicated by zoomed in squares and arrows. (E) Plot of log10-transformed number of detected black carbon particles in each sample (fetal liver n=36, lung n=36, brain n=14, and preterm placenta n=36), with datapoints corresponding to geometric mean black carbon load in each sample, with horizontal lines showing the geometric mean, and the whiskers showing the corresponding 95% CIs. (F) Heat map of association between black carbon load in different tissues, with corresponding two-sided Pearson correlation values. The stronger the positive association, the darker the colour of the blue box and similar for the red colour indicating a negative association.