The artificial lungs, called the lung billboard, were installed by a non-government organisation called the Waatavaran Foundation.
A giant pair of artificial lungs fitted with filters and fans to mimic the human lungs, fitted in Navi Mumbai’s Kharghar by an environmental organisation on Friday, started turning black within a day.
This comes four weeks after a study found that air pollution levels on the outskirts of the Mumbai Metropolitan Region (MMR) along the Kharghar-Panvel-Taloja belt are above safe limits.