Hindustan Times (Delhi)

Mobile app to help you choose plants that cut pollution

- Soumya Pillai soumya.pillai@hindustant­imes.com The app will suggest types of plants that can be grown by users inside their homes to fight indoor pollution.

GREEN MOVE IIT graduate’s mobile applicatio­n to suggest household plants that purify air, help those with respirator­y diseases

NEW DELHI: An IIT graduate has developed a mobile applicatio­n which will help Delhiites tackle high pollution levels with plants in their houses.

Raunak Singhi, an engineer, decided to come up with the app as a solution for residents of the Capital and help them breathe fresh air at least inside their houses.

The applicatio­n, ‘Shelli’, will be formally launched next week.

“There is a lot of talk about the alarming pollution levels in the city. What we do not talk about or realize is that our homes have much higher pollution levels when compared to the levels outside,” Singhi said.

He adds that every household plant that we grow has properties to tackle a certain pollutant.

After downloadin­g the mobile applicatio­n, users will be required to answer a few questions, like the location of their house, proximity to drains, factories or roads.

Based on the answers, a pollution profile of the user is created.

The app then will suggest the types of plants that can be grown by the user.

For example, in residentia­l neighbourh­oods around industrial areas such as Okhla, high levels of sulphur dioxide is found in the air. But in areas around petrol pumps, the level of benzene is high in the air.

Studies conducted by NASA have revealed that indoor plants such as Lady Palm, Philodendr­on, Dwarf Date Palm, and Ficus Alii bring down formaldehy­de, benzene and carbon monoxide by at least 50% in just 24 hours.

Dr Ramesh Sen, a lungs expert, said that these days the indoor environmen­t cannot be termed safe since exposure to tobacco smoke, lead in paints and toys and emission from cooking stoves causes great harm to one’s health. The indoor pollutants are not only harmful for lungs but also adversely affect brain function with constant exposure.

The major pollutants in Delhi’s air are road dust, carbon monoxide and benzene, Sen said.

“Some indoor plants have been proven to absorb these pollutants and convert them into oxygen. People with major lung issues are often advised to place certain plants in their bed rooms so that the CO2 (carbon dioxide) is converted into oxygen,” Sen said.

Singhi said the idea for this venture came in 2012 while he was still an IIT student. However, it was not till February this year that he seriously started developing this app.

Some indoor plants can absorb pollutants and convert them into oxygen. People with major lung issues are often advised to place plants in their bed rooms so that the CO2 (carbon dioxide) is converted into oxygen.

“I sat on the idea for more than two years and then in October, last year, I decided to take it up seriously. I left my job and devoted seven months in experiment­ing how each plant reacts to different pollutants. I placed plants in over 50 houses and noted down the results,” he said.

Singhi is also planning to include Ayurvedic and mosquito repellent plants to his applicatio­n in the coming months.

I sat on the idea for more than two years and then in October, last year, I decided to take it up seriously. I left my job and devoted seven months to experiment­s. I placed plants in over 50 houses and noted results.

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