A new idea to clean the air in Beijing?

Everyday you read about new ideas what to do about the Beijing pollution.
Now, the Dutch came up with a novel way to take the pollution particles out of the air:
Beijing Will Test This Giant Smog-Devouring Pollution Vacuum
http://gizmodo.com/beijing-will-test-this-giant-smog-devouring-pollution-v-1450019111
“Dutch artist Daan Roosegaarde’s latest project: he plans to build and test a pollution-collecting system in smog-addled Beijing. Billed as an “electronic vacuum cleaner” for Beijing’s polluted skies, the so-called Smog system throws an unexpected solution at a complicated problem. Much in the same way that a static-charged balloon attracts hair, this pollution-devouring set-up uses copper coils buried under grass to create electrostatic fields and attract smog particles to the ground. Once pulled from the sky, the particles can be compressed and repurposed.”
The video is misleading because the dust is supposed to go down instead of going up.
It works very much like a giant electrostatic filter that you find in some air cleaning machines.
All nice but I wonder what the possible impact could be on human beings (and animals) walking inside that field. Or if it may attract lightning?
Well, anyway interesting to see what will happen with the idea.