Columbia University's Mailman School of Public Health Jun 16 2025 Babies born to mothers potentially exposed to low levels of arsenic in public drinking water-even at levels below the federal safety standard-were more likely to be born preterm, with lower birthweight, or be smaller than expected, according to a study at Columbia University Mailman School of Public Health and funded by the National Institutes of Health's Environmental influences on Child Health Outcomes (ECHO) Program. The