Dynamic Study on Blood Lead Levels of Pregnant Women and its Effect on Fetus in Hubei

To study pregnant women exposure to lead and its effect on fetus in Hubei,we selected 90 pregnant women from three un-similar districts,who had no know occupational exposure to heavy metals.Under strict quality control,the blood was obtained.The blood level was determined with Japan 180-80 flame atomic absorption spectrometer.The results showed:the geometric mean(GM)PbB of the 28 weeks of pregnancy(Y1) and delivery(Y2) was 0.290μmol/L and 0.326μmol/L,respectively.The GMPbB level of umbilical cord(Y3) is 0 333μmol/L(17.8% umbilical cord PbB>0.483 μmol/L).The correlation coefficient of Y3 and Y2 was 0.6805,P<0.01.Y3=0.12251067+0.16094591Y1+0.78077865Y2 by stepwise regress.But the lead level didn't cause adverse effects on fetal development.