Beijing's latest answer to pollution: the Smog Free Tower

Beijing's latest answer to pollution: the Smog Free Tower
Dutch artist Daan Roosegaarde, right, walks by his Smog Free Tower on display at D-751art district in Beijing, Thursday, Sept. 29, 2016. In a city where smog routinely blankets the streets and chokes off clean air, Roosegaarde has offered an eccentric solution: a 20-foot metal tower that takes in smog and purifies it like a giant outdoor vacuum cleaner. (AP Photo/Andy Wong)

In a city where smog routinely blankets the streets, a Dutch artist has offered an eccentric solution: a 7-meter (23-foot) metal structure that takes in smog and expels cleaner air.

Daan Roosegaarde's Smog Free Tower opened Thursday on a small, grassy lot in Beijing's famed 798 arts district. Comprised of 45 silver plates resembling partially open window blinds, the tower contains an air-purifying machine that runs continuously with a low hum.

"That is not noise!" Roosegaarde told a visitor standing next to the tower. "That is the beautiful sound of moving toward you!"

There's hardly a more scarce resource than clean air in Beijing on a high-pollution day, particularly in wintertime when the region's coal-fired electrical plants are running at full capacity. The levels of dust and harmful particles in Beijing's air are among the highest in the world.

Government researchers have linked the pollution to higher rates of lung cancer and on particularly bad days, schools keep children inside during playtimes and many pedestrians don masks designed for hospitals or construction zones.

Roosegaarde, whose projects focus on connecting people with nature and energy, came up with the idea for the tower after a visit to Beijing three years ago during which he saw the view outside his window blocked by the thick gray haze.

"I couldn't even see the next street," he said. "That image changed me."

At his studio in the Netherlands, Roosegaarde and a team of designers began working on a project that would respond to Beijing's pollution and highlight the benefits of fighting it, in however limited a way. They raised more than $120,000 online to help pay for the tower by selling metal rings with a clear cube that includes a bit of black carbon from smog.

The tower began running in Beijing one week ahead of its formal unveiling. The tower will also be shown in other Chinese cities, including the central city of Hebei and the southern commercial center of Shenzhen.

Roosegaarde wants to eventually build more towers, perhaps with funding from the Chinese government, which has publicly made reducing pollution a priority.

He also said he hopes the tower will inspire and innovation among people in China and other countries that are grappling with heavy pollution. He's planning to meet with inventors of projects like a bicycle that purifies air as it is pedaled.

"We shouldn't wait for the government to tell us what to do," he said. "I want to start a movement, a community, which does not accept pollution anymore. We should use the energy of creative thinking to create cities where ultimately in 10-15 years, these beauties are not necessary anymore."

The tower was unveiled on a relatively good day by Beijing standards, with a bright sky and a cool early fall breeze. Standing next to dignitaries with red roses pinned to their lapels, Roosegaarde used a remote control to raise part of the tower's panels into the air to show the machine inside.

Whether the air was actually cleaner was hard to say. An unscientific test using a handheld monitoring device throughout the day showed the air next to the tower was slightly cleaner than further away.

The did draw visitors walking through the district who stopped to stare at it and take pictures.

Ma Zhongqing, an information technology worker, said she was reminded of a larger version of the air purifiers many Beijing residents keep running in their homes during winter.

Ma and others were cautiously optimistic that it would make a difference, albeit a small one.

"It being exhibited here makes people feel that they need to pay attention to this kind of thing," Ma said. "But a lot of problems need to be solved while it's being put into use."


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Sep 30, 2016
Well, as long as the tower isn't run by electricity generated from coal powerplants, I guess this is one way to combat pollution. (though looking this up the top 7 powerplants in and around Beijing are all gas and coal)

(Not creating any would be preferrable...but hey...economy, right?)

Sep 30, 2016
Well, as long as the tower isn't run by electricity generated from coal powerplants, I guess this is one way to combat pollution. (though looking this up the top 7 powerplants in and around Beijing are all gas and coal)

(Not creating any would be preferrable...but hey...economy, right?)

maybe but electricity can be also carried and china has also invested in a lot of renewables. these could be used as a way to balance the production volatility....

Oct 01, 2016
Put the cleaners on the stacks.

Oct 02, 2016
put cleaners on stacks
I would have thought that the SE with his MS in EM would have known about scrubbers.

"A decade ago China was coming to the end of a massive building spree, that saw it rapidly install more coal scrubbers than the rest of the world had done since the technology was developed. Yet these scrubbers weren't being used, despite government subsidies given to offset their operating costs.

"Three things changed that, according to research by Professor Xu Yuan at the Chinese University of Hong Kong. Beijing sent environmental inspectors... monitoring systems... fire executives..."

-More evidence for what we already know; george kamburoff lies about his SE and that his store-bought MS was not in EM.

All BS.

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