[3] In areas near the polluting industries, testing in 1997 showed high levels copper in the soil.
[4] In 2011, Escuela La Greda located in Puchuncaví, was engulfed in a chemical cloud from the Ventanas Industrial Complex.
The sulfur cloud poisoned an estimated 33 children and 9 teachers, resulting in the relocation of the school.
[5] In August and September 2018 there was a public health crisis in Quintero and Puchuncaví, where over 300 people experienced illness from toxic substances in the air, coming from the polluting industries.
[7] In June 2022 President Gabriel Boric announced Codelco's decision to begin a closure process of Fundición Ventanas.