Figure 3From: Placental transfer of the polybrominated diphenyl ethers BDE-47, BDE-99 and BDE-209 in a human placenta perfusion system: an experimental study Fetal-maternal ratios of BDE-47 and BDE-99. Mean and standard deviation of fetal/maternal concentration ratios (FM-ratios) for BDE-47 and BDE-99 during four hour placenta perfusions. (0-60 min: n = 5; 130-240 min: n = 4).Back to article page