The Pittsburgh water crisis arose from a substantial increase in the lead concentration of the city's water supply. Although catalyzed by the hiring of cost-cutting water consultancy Veolia in 2012, and an unauthorized change of anti-corrosion chemicals in 2014, this spike in lead concentration has roots in decades of lead pipe corrosion.
The Pittsburgh water crisis arose from a substantial increase in the lead concentration of the city's water supply. Although catalyzed by the hiring of cost-cutting water consultancy Veolia in 2012, and an unauthorized change of anti-corrosion chemicals in 2014, this spike in lead concentration has roots in decades of lead pipe corrosion.
Source: Wikipedia "Pittsburgh water crisis" · CC BY-SA 4.0
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