Exposure to dioxins during pregnancy harms the cells in rapidly-changing breast tissue, which may explain why some women have trouble breastfeeding or don’t produce enough milk, according to a University of Rochester Medical Center study.

Land application of biosolids (treated municipal sewage sludge) is a common practice because biosolids are a rich source of plant nutrients and organic matter.

Firing clay in unvented kilns could be a significant source of dioxins in people exposed regularly and over long periods, a new study suggests.