Pigeons (with backpacks) are monitoring air quality over London
LONDON -- A tiny flying army has been unleashed as the latest salvo in the war against the capital's pollution.
A flock of pigeons equipped with tiny backpacks containing pollution sensors and GPS trackers flew out over the city Monday, charged with monitoring air quality and reporting back their findings.
Curious residents can tweet to @PigeonAir for a reading around their home or office.
SEE MORE: Here is a pigeon wearing a bagel
The Pigeon Air Patrol were released from a rooftop in east London by expert Brian Woodhouse as part of a project by the marketing agency, DigitasLBI.
See more about the project (and their tweets below!)
Their backpacks were created by air quality start-up Plume Labs and monitor nitrogen dioxide, ozone and volatile compounds. A vet was on hand to ensure the birds' welfare.
The pigeons' three-day stint over the city is aimed at drawing attention to the quality of London's air, which has dropped at times in recent months.
Last March, London landmarks even appeared to vanish after they were obscured by pollutants.
"It is a scandal. It is a health and environmental scandal for humans – and pigeons. We're making the invisible visible," Pierre Duquesnoy from DigitasLBI said, according to the Guardian.
The birds were resting Monday night after a hard day's monitoring, ready to do it all again Tuesday.
We've tweeted the pigeons for an update about the air quality around Mashable's London offices, we'll update the story if they get back to us.
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