Fetal lead exposure is associated with adverse pregnancy outcomes and developmental and cognitive deficits; however, the mechanism(s) by which lead-induced toxicity occurs remains unknown. Epigenetic fetal programming via DNA methylation may provide a pathway by which environmental lead exposure can influence disease susceptibility.

The objective of the study is to study the relationship of hemoglobin to exposure to motor vehicle exhaust.

http://tih.sagepub.com/content/12/5/629.abstract