When the city of Flint, Michigan, temporarily switched its water source to the Flint River in 2014, it didn’t treat the water properly. The untreated river water corroded pipes, allowing lead to leach into the water. Tests found lead levels in the region’s water to be higher than that of hazardous waste, but the city failed to warn residents of the danger for months. State officials are now facing criminal charges for their role.
The devastating health consequences of this lapse are now becoming clear. A recent paper finds that the city’s lead crisis may have sparked a drop in birth rates and a precipitous rise in miscarriages. For the working paper, Daniel Grossman from West Virginia University and David Slusky from the University of Kansas compared fertility rates in Flint to those in other Michigan cities before and after Flint changed its water source in 2014.