Mining the Air at the Edge of the Internet

Most of us now carry in our pockets a package of powerful sensors, connected to the internet. These make possible near real-time monitoring, in aggregate, of the health of our infrastructures, both physical and electronic, and ourselves. I’ll describe some recent progress in gathering and interpreting smartphone-based measurements from about 1% of the population in several large US cities. Managing the tradeoffs between personal privacy and social benefits becomes easier as the degree of coverage increases.