Dr. Mona Hanna-Attisha, a pediatrician in Flint and lead author of the study, said she sees the emotional effects of the water crisis every day as she takes lead level readings in children.

The Center for Disease Control and Prevention estimates the water crisis exposed nearly 100,000 residents of Flint to lead. A copper water supply line, left, after being installed to replace lead ...

Volunteers distribute bottled water to help combat the effects of the crisis when the city's drinking water became contaminated with dangerously high levels of lead in Flint, Michigan, March 5, 2016.

Back in April 2014, the city of Flint changed its water source from Detroit’s system — which draws from Lake Huron — to the Flint River to save coin. Needless to say, that backfired.

The Center for Disease Control and Prevention estimates that the water crisis exposed nearly 100,000 residents of Flint to lead due to the crisis.

Back in April 2014, the city of Flint changed its water source from Detroit’s system — which draws from Lake Huron — to the Flint River to save coin. Needless to say, that backfired.

The Center for Disease Control and Prevention estimates that the water crisis exposed nearly 100,000 residents of Flint to lead due to the crisis. By Matt Lavietes | NBC News • Published July 2 ...

The Center for Disease Control and Prevention estimates that the water crisis exposed nearly 100,000 residents of Flint to lead due to the crisis. By Matt Lavietes | NBC News • Published July 2 ...

The Center for Disease Control and Prevention estimates that the water crisis exposed nearly 100,000 residents of Flint to lead due to the crisis. By Matt Lavietes | NBC News • Published July 2 ...

The Center for Disease Control and Prevention estimates that the water crisis exposed nearly 100,000 residents of Flint to lead due to the crisis. By Matt Lavietes | NBC News • Published July 2 ...

The Center for Disease Control and Prevention estimates that the water crisis exposed nearly 100,000 residents of Flint to lead due to the crisis. By Matt Lavietes | NBC News • Published July 2 ...