Pregnant women in Indiana show fourfold increase in toxic weedkiller in urine – study

Seventy percent of pregnant women in state had herbicide dicamba in their urine, up from 28% in an earlier study

Pregnant women in a key US farm state are showing increasing amounts of a toxic weedkiller in their urine, a rise that comes alongside climbing use of the chemicals in agriculture, according to a study published on Friday.

The study, led by the Indiana University school of medicine, showed that 70% of pregnant women tested in Indiana between 2020 and 2022 had a herbicide called dicamba in their urine, up from 28% from a similar analysis for the period 2010-12. The earlier study included women in Indiana, Illinois and Ohio.