Starting in spring 2008, Parisians will be able to get a quick read-out of the city’s air quality by checking the colour of the giant hot-air balloon which is tethered above the André Citroen park in the 15th arrondissement. The balloon, which is operated by Eutelsat, will turn green when air quality is good, and red when it is poor. The pollution monitor will take into account the air quality in the immediate environs of the balloon as well as that on the major traffic axes in the capital thanks to a myriad of tiny diodes fixed on the bottom of the balloon. The project will be launched by Aérophile, in partnership with Banque Populaire, Airparif and the Parisian city authorities.
via Le Parisien