Hacking with GLA environmental data

Rewired State kindly invited me along to a two-day hack with unreleased environmental data from around London, held at City Hall or the GLA. What grabbed me was that scouring through the data available was that there is an hourly feed available of 99 air quality sensors across London that I can't seem to see has been hacked on before. So I did a couple of air quality hacks. Smoggle is a cute little game idea (with a monster of course) that could be used as a way of explaining which parts of London have good/bad air quality. Is it smoggy in London? - I wanted to concentrate on answering just one question well, and this is it - 99 live sensors picking up air quality. The map changes colour to be more grey on a bad day, and I've got a "human" way of describing the air conditions.