| Sumario: | Toxic exposures to both the father and the mother before conception and to the mother during pregnancy can affect fertility, the course of pregnancy, and fetal development. The present focus on cancer-causing chemicals in toxicity evaluations has overshadowed other important health endpoints, such as reproductive and developmental toxicity, that may occur at much lower levels of exposure. Environmental tobacco smoke, video display terminals, and indoor air quality are three of the most common concerns of pregnant women in their places of work. The controversies and uncertainties about these and the lack of data on other potential hazards make toxic exposure both a delicate and a necessary issue when counseling women about their workplace health during pregnancy.
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