CleanTechnica is the #1 cleantech-focused
website
 in the world.


Green Economy smog pollution eating paint

Published on April 20th, 2012 | by Zachary Shahan

6

Smog-Eating Graffiti for One of World’s Most Polluted Cities

Share on Google+Share on RedditShare on StumbleUponTweet about this on TwitterShare on LinkedInShare on FacebookPin on PinterestDigg thisShare on TumblrBuffer this pageEmail this to someone

April 20th, 2012 by Zachary Shahan
 
 
smog pollution eating paint

Update: for a lot more info on the paint, check out the comment by the people behind it in the comments below the post!

This story grabbed my eye like few do, so I imagine it might have for you, too. So, you’re probably asking: “What’s the deal? Is smog-eating graffiti for real?” Yes, it is.

Manila (Philippines), reportedly one of the five most polluted cities in the world, is using an air-purifying paint — a paint that filters out nitrogen oxides when it reacts with sunlight and water vapor — on walls around the city, especially next to highways, to clean the air. As the BBC video below notes, people are painting murals on the walls of some of Manila’s busiest streets and measurements so far show that it is really helping to clean the air (but that there’s still a lot more to be done).
 

 
The catalytic paint, Boysen KNOxOUT, was created by a local Manila company.

Jess Zimmerman of Grist (where I ran across this story) echoes one of the stats from the video above and adds her own little twist of enthusiasm and “let’s do it” creativity in this nice comment: “Eleven square feet of paint-covered surface can absorb as much pollution as a full-grown tree, and these murals are close to 11 THOUSAND square feet. If we could get this stuff into the hands of street artists and taggers, it would be like having an army of energetic teenagers planting trees all over the city all day, every day.” Seriously, this should be deployed in cities around the world (unless we’re missing some nasty details about the paint).

Have you heard about this paint before? Think it’s the coolest thing since sliced bread? Have something else to chime in about?

Keep up to date with all the hottest cleantech news by subscribing to our (free) cleantech newsletter, or keep an eye on sector-specific news by getting our (also free) solar energy newsletter, electric vehicle newsletter, or wind energy newsletter.

Print Friendly

Share on Google+Share on RedditShare on StumbleUponTweet about this on TwitterShare on LinkedInShare on FacebookPin on PinterestDigg thisShare on TumblrBuffer this pageEmail this to someone

Tags: , , , , , , , , ,


About the Author

is the director of CleanTechnica, the most popular cleantech-focused website in the world, and Planetsave, a world-leading green and science news site. He has been covering green news of various sorts since 2008, and he has been especially focused on solar energy, electric vehicles, and wind energy since 2009. Aside from his work on CleanTechnica and Planetsave, he's the founder and director of Solar Love, EV Obsession, and Bikocity. To connect with Zach on some of your favorite social networks, go to ZacharyShahan.com and click on the relevant buttons.



  • Elizha

    Doesn’t it contain titanium dioxide which is suspected to be carcinogenic?

  • Boysen KNOxOUT Philippines

    Thanks so much for helping us spread the word about Boysen KNOxOUT and the urban renewal initiative The EDSA Project (Everyone Deserves Safe Air).

    Just to tell you a bit more about the project, the medium used in the art works is Boysen KNOxOUT –the first air-cleaning paint in the which has been proven to transform 10 cars worth of emissions per square meter painted. Eight walls measuring 1000sqm each along the nearly 24-kilometer stretch of historic EDSA will be repainted using the paint. Each art work is expected to purify the emissions of 10,000 cars everyday.

    Re the questions:

    1. Is it toxic? NO.The paint is low-VOC and it contains no lead and mercury. It actually breaks down smog or air pollutants like NOx into harmless substances like water vapor.

    2. How long does it last? The air cleaning property of the paint works as long as the paint is intact and exposed to a light source (ie. sunlight, UV light). The paint can last the regular painting interval of 5 years.

    3. Cost? In canvassing costs, the fact that Boysen KNOxOUT is an air purifier more than a paint product should be considered–you’re technically buying an air purifier while getting a quality paint for ‘free.’ Exact price quotation can be directed to inquiry@boysen.com.ph.

    4. Could it be used as base house paint? YES. It is recommended however that it’s exposed to a light source that will activate the air -cleaning property.

    In the meantime, you can check out these sites: http://knoxoutpaints.com/ and http://edsa.me/ for more info.

    • http://cleantechnica.com/ Zachary Shahan

      Thanks a ton! Will update the post.

  • Matt

    At first glance look really great. But one does wonder.
    - Is it toxic, or does it manufacture create a lot of toxic waste.
    - Does it last? month, year, 20 years?
    - Cost?

    If cost/duration is low enough and not toxic. Then think all those noise reduction walls next to highway going into a city. They get painted.

    • http://cleantechnica.com/ Zachary Shahan

      yeah, i know, brings many questions, and many thoughts on possible application.

  • rommel43

    If its true and it doesnt have major side affects could it be used as a base house paint?

Back to Top ↑