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pollution_balloon.jpga giant tethered helium balloon that displays real-time reports of atmospheric pollution by a colorful lighting system, which can be seen from more than 20 km (12.4 miles) away. the balloon's color signifies the ambient air quality using 3 projectors that are located in the middle of the balloon. for example, red signifies highly polluted air, orange for polluted, yellow for moderate, light green for clean, & green for very clean.

[link: aerophile.com|via physorg.com & ecofriend.org]

see also:
. nuage vert
. atmostpheric pollution
. eco river
. public air quality indicator

6 COMMENTS

I would love to have one in Pittsburgh. But then it wouldn't be that interesting because it would be RED all the time.

Fri 18 Jul 2008 at 2:40 AM

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