Thanks to a very kind invitation from Vasu Kilaru (EPA National Exposure Research Laboratory), I attended the recent Air Sensors 2013 workshop at the US Environmental Protection Agency (EPA). My presentation was about the use of OGC standards for Big Data in the context of Sensors. I participated in a breakout session led by Sherri Hunt (EPA Star Program) that focused on challenges for the next 5 years. One of them was the need for better descriptions of sensors and data integration. Also, unexpectedly, for the first time I measured the CO in my breath: 2 PPM, happily reassuring to the world that I’m a non smoker and healthy.