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Environmental Pollutants in Relation to Complications of Pregnancy
Sonia Tabacova and Liudmila Balabaeva
Environmental Health Perspectives
Vol. 101, Supplement 2: Impact of the Environment on Reproductive Health (Jul., 1993), pp. 27-31
Published by: The National Institute of Environmental Health Sciences
Stable URL: http://www.jstor.org/stable/3431372
Page Count: 5
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Certain complications of pregnancy, e.g., threatened spontaneous abortion, toxemia, emesis, and anemia, were studied in pregnant women living in industrial areas contaminated by smelters and the petrochemical industry. Exposure to lead or aromatic hydrocarbons was assessed in parallel by the determination of these agents or their metabolites in blood and urine. Comparison of respective exposure levels was made between women with normal pregnancies and those with complications. Significantly higher levels of lead in blood and increased excretion of the metabolic products of organic solvents were found in women with complicated pregnancies compared to those with normal pregnancies. Threatened spontaneous abortion, toxemia, and anemia were associated with higher lead exposure in the vicinity of smelters. In these patients, evidence of disturbances of blood glutathione equilibrium and increased lipid peroxidation were found indicating a decreased ability to compensate for the effects of exposure. Styrene exposure in a petrochemical industrial area was associated mainly with late toxemia and nephropathy. Patients with these complications also had a tendency to elevated exposure to other aromatic hydrocarbons. It is suggested that complications of pregnancy may be induced by environmental agents at levels lower than those that result in pregnancy loss or preterm birth.
Environmental Health Perspectives © 1993 The National Institute of Environmental Health Sciences