People with asthma can use Asthmapolis to monitor when and where they use their inhalers. A sensor fits over the end of the inhaler, and sends data to a smartphone, where users can see maps and timelines showing when they needed to use it.
 
 
This can also be shared with their doctor or pooled anonymously with others to help big data analysts identify environmental hot-spots that trigger asthma – whether related to weather, pollen, or other environmental factors. Asthmapolis can also help with research: a trial in Hawaii is using it help evaluate the effects of volcanic fog by aligning results against air monitoring. Asthmapolis was approved by the FDA in the USA in July 2012.
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