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Canada Giant fans to improve the air of Delhi, the skeptical experts

08:25  22 july  2021
08:25  22 july  2021 Source:   ouest-france.fr

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Des ouvriers travaillent sur le site de construction d'une tour contre la pollution, le 21 juillet 2021 à New Delhi © Money Sharma of the workers work on the construction site of a tour against pollution, July 21, 2021 in New Delhi

Forty giant fans are in to be built in the center of Delhi in a new attempt to improve the air quality of the Indian capital, but the initiative is criticized by environmental advocates, particularly because it consumes electricity produced by Coal plants.

Des ouvriers sur le site de construction d'une tour contre la pollution, le 21 juillet 2021 à New Delhi © Money Sharma of the workers on the construction site of a tour against pollution, July 21, 2021 in New Delhi

This two-million dollar project consists of a 25-meter high turn that should allow Filter the air over an area of ​​a square kilometer, in the sectors of the Crested shops and cafes of Connaught Place.

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It is one of the world's most polluted cities. And as the people of New Delhi prepare to vote in local elections this week, many are demanding action to

Every winter, this relatively chic area that has many colonial buildings stifles under a thick pollution fog.

"The smog is an annual phenomenon related to particular causes. So we try to contain it," explains Anwar Ali Khan, the project manager.

the engineer explains that the goal is to reduce the amount of fine particles by 50% (less than 2.5 micrometers) and other towers could be controlled elsewhere in the city if this experience pays off .

The Chief Minister of Delhi, Arvind Kejriwal, had felt that the capital had become a "gas chamber" because of the intense pollution.

But a lot of experts say that this initiative will not change and only give "the impression" that the authorities act.

"Building towers against smog has never been, and will never be a solution," Assene Sunil Dahiya, from the center for energy research and clean air.

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During an interview with Sky News dismissed the idea that coronavirus.

"If we really want to adjust pollution, it must be tackled at the source."

Sunil Dahiya noted that the tower would be connected to the general network, which is supplied with 70% by coal plants.

"This will only add pollution elsewhere in the country."

China, the first world polluter, had in 2018, built fireplace 60 meters high in the heart of the city of Xian who was supposed to purify the air. The experience has not been repeated elsewhere in the country.

Every year at the beginning of the winter season, the air turns into New Delhi into a toxic mixture of smoke from surrounding agricultural burns, exhaust gas and industrial emissions, trapped above the city by temperatures. cooler and low winds.

Attempts by the authorities to halve the number of vehicles in circulation did not produce the expected effects.

Engineers hope that the fan tower will be completed on May 15, India Independence Day.

"The goal is not cleaning all the air of Delhi but to create special areas where people will breathe," says Anwar Ali Khan.

BB / TW / JAC / MLB

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