This Incredible Smog-Eating Billboard Sucks Pollution From the Air
I live in a part of the world where poepl have no concept of humidity without precipitation. Plenty of other places might find this useful, though.
http://www.takepart.com/video/2014/05/05/incredible-smog-sucking-billboard?cmpid=tp-ptnr-upworthy
Let’s face it: There’s no escape from billboards. On our daily commutes we’re bombarded with the eyesore of advertisements encouraging us to buy goods and services. Sure, some of the ginormous posters are socially responsible—and then there’s American Apparel’s sexist imagery that makes us wish every one of the ads would disappear from the face of the earth. But if billboards start sucking smog from the air, maybe we can cut them some slack.
Indeed, a massive, smog-sucking poster has been created by Lima, Peru–based engineering college UTEC. This isn’t the school’s first time at the environmentally responsible billboard rodeo. Last year, to address Lima’s rainfall shortage, the school came up with a billboard that creates water by sucking it from the city’s super-humid air.
Along with promoting the campus, this latest advertisement addresses another problem that the university created: air pollution due to construction of campus buildings. As the video above shows, the billboard uses Lima’s humidity to trap particulate matter in the air. The school claims that just one of the billboards is the purifying equivalent of 1,200 trees.
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