Figure 3From: Seasonal ambient air pollution correlates strongly with spontaneous abortion in Mongolia Calendar monthly averages of ambient air pollutant levels correlated with fetal death. (A) SO2. (B) CO. (C) NO2. (D) PM10. (E) PM2.5. Monthly average air pollutant levels are shown as black bars; monthly number of fetal deaths at the National Center for Maternal and Child Health in Ulaanbaatar, Mongolia in 2011 shown as grey dots and a connecting line.Back to article page