Aux origines de l'humanitéPoisoned Water
Réalisé par Llewellyn M. Smith12
S44 • E17 31 mai 2017 55min7.9
NOVA investigates what happened in Flint, Michigan when local officials changed the city’s water source to save money, but overlooked a critical treatment process. As the water pipes corroded, lead leached into the system, exposing the community—including thousands of children—to dangerous levels of poison. NOVA uncovers the science behind this manmade disaster.
