This article has a little information on Plume: http://www.treehugger.com/health/worlds-first-global-real-time-air-pollution-map-app-launched.html http://www.t

This article has a little information on Plume: http://www.treehugger.com/health/worlds-first-global-real-time-air-pollution-map-app-launched.html http://www.treehugger.com/health/worlds-first-global-real-ti... "The map integrates some half a million data points each day from 11,000 environmental stations across the world,.."