In 1 day, giant lung billboard at Kharghar starts to turn black due to pollution

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.

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.

The artificial lungs, called the lung billboard, were installed by a non-government organisation called the Waatavaran Foundation. (HT Photo)

A similar installation was set up in Bandra last January but it took 14 days to turn completely black. The installation changing colour within a day of being set up has caused concerns of increasing pollution levels among residents.

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 for nearly two-thirds of the day, with peak pollution during early morning hours posing a threat to morning walkers and joggers.

Kavita Choutmal, mayor of the Panvel City Municipal Corporation (PCMC), who visited the site, has demanded the setting up of an expert committee to study the deteriorating air quality in the area.

The artificial lungs, called the lung billboard, were installed by a non-government organisation called the Waatavaran Foundation in a bid to demonstrate the effect of pollution levels on the lungs. The installation is placed near the Bank of India Chowk at Sector 7.

Designed by the digital advocacy group Jhatkaa.org, the artificial lungs are made up of a white filter medium. A pair of fans are fixed at the back of the billboard to suck in the air to mimic the functions of the lungs while breathing.

“Such visuals (like the billboard) are important methods to raise awareness about finer particles bringing out a vivid image on how they impact the lungs. Air quality spikes could be mostly due to vehicular emissions in these areas. The impact needs to happen across all stakeholders to understand how various sources of pollution are contributing to this issue,” said Sudhir Srivastava, chairman, MPCB.

“Over the next few days and weeks, particulate matter from different sources will begin getting trapped in the filters. This will lead to the lungs changing colour - from chalk-white to brown to black. The billboard is also fitted with a digital air quality monitor that will record and display the real-time Air Quality Index (AQI),” said Bhagwan Kesbhat, founder of Waatavaran.

On Saturday, even as the overall air quality of Mumbai remained in the moderate category, in Navi Mumbai it was in the very poor category with an AQI of 365.

A study released by Waatavaran in December 2020 found extremely high levels of PM2.5 in the air, especially between 6 am and 8 am, and average daily air quality above safe standards for 17 hours in the Kharghar-Panvel-Taloja belt.

The data from five locations – Maharashtra Industrial Development Corporation (MIDC), Taloja; Sector 13, Panvel; Navade, Taloja; Sector 7 and 36, Kharghar - showed average PM2.5 levels over 31 days was 101.12 microgrammes per cubic metre (μg/m3), which is almost twice the national safe standard (60μg/m3), and four times the World Health Organization (WHO) standard (25μg/m3).

The highest PM2.5 concentration was recorded at 7 am at 141.1μg/m3 (average data from five monitors). MIDC Taloja had the most polluted air among five locations at 197.4 μg/m3 at 7 am. PM2.5 data was accessed using five low-cost air quality monitors between November 13 and December 13.