Childhood Behavioral Problems Linked to Maternal Smoking by Colleen Fleiss on May 1, 2021 at 1:10 AM Behavioral problems in early childhood are associated with a pregnant woman's exposure to tobacco smoke and pollution from road traffic, revealed a recent study led by a team from the Barcelona Institute for Global Health (ISGlobal), a centre supported by the "la Caixa" Foundation. The study, published in Environmental International, is the first to investigate the impact of the exposome--i.e. the set of all environmental exposures, both chemical and non-chemical, during the prenatal and postnatal stages--on child behaviour. Previous research had assessed the impact of environmental exposures separately but not as a whole.