The wonderful murals that consume air pollution in big cities

The wonderful murals that consume air pollution in big cities

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There aremurals that purify the air and they are turning it into an alternative forreduce pollution in big cities. Made with a paint that captures air pollutants, this kind of world-wide art can do the work of up to 3,000 trees. São Paulo was one of those chosen to receive this job and the most recent so far is in Warsaw, Poland.

According to information on the Good News Network website, the air freshener murals are an initiative called Converse City-Forests. This work consists of presenting public art projects that also clean the air, as well as the giant mural made with special pigments that, activated by the sun, clean pollution.

How murals work

The murals are painted with a titanium dioxide photocatalytic paint that attracts pollutants from the air before converting them to harmless nitrates through a chemical process that involves sunlight. This process is said to be equivalent to the work of 720 trees, and all the murals spread across countries do the work of up to 3,000 trees.

The most recent mural is that of Warsaw, Poland, found on a building across from the subway. Polish artists Maciek Polak and Dawid Ryski made a collection of colorful and smiling flowers with the following phrase: “Let's create together for tomorrow”. According to them, this is a positive message to help people resume their post-Covid-19 lives.

The Ciudad-Bosques project is made up of 13 groups that will produce these murals. Among the cities involved are Belgrade, Lima, Sydney, Jakarta, Manila, Santiago, Johannesburg, Melbourne, Bogotá, Panama City and São Paulo. Warsaw was the second city to finish a mural, the first was Bangkok, Thailand.

Converse isn't alone in using this type of paint to clean the air. The Roosegaarde studio, the Netherlands, made several posters in Monterrey, Mexico, using this photocatalytic paint. With it, each billboard can clean the same amount of air as 30 trees in 6 hours and can work for up to five years.

The world's largest air purifier was built in Beijing by Dutchman Daan Roosegaarde who specializes in pollution-free design projects. This scrubber has the capacity to filter 30,000 cubic meters of air per hour, transforming pollutants into literal diamonds that are sold to finance the project.

Beijing was a city of cyclists and the Dutch artist, who is a cyclist at heart, said that he plans to make cycling a cultural icon of China as the next step for pollution-free cities.

This is a brilliant idea, as it is no longer possible to tear down buildings in big cities to restore the place to trees. We hope that, in addition to São Paulo, more murals can be spread around the world!

By Eliane A. Oliveira. Article in Portuguese

Video: Air pollution in cities (February 2023).