Fig. 4
From: Ambient black carbon particles reach the fetal side of human placenta
Correlation between placental BC load and residential BC exposure averaged over the whole pregnancy. The line is the regression line. Green and red dots indicate low (n = 10 mothers) and high (n = 10 mothers) exposed mothers. Pearson correlation r = 0.55, P = 0.012 and corresponding Spearman’s Rank correlation r = 0.43, P = 0.06. Source data are provided as a Source Data file
