Air quality is invisible and strongly affects our health and performance. Also, air quality in cities changes dramatically from one hour to the next and from one block to another. A dense mesh of mobile miniaturized sensors reporting air quality, in real time, will help us to make informed decisions and in the long run to improve air quality.
Distributed and networked gas sensing is rapidly growing in importance for industrial, safety, and environmental monitoring applications. Optical gas sensors offer the highest sensitivity, stability and specificity in the market, but for most applications, the existing sensors are too bulky and expensive. To enable the broad utilization of high-performance gas sensor networks, there is a critical need for small, low-power and networked gas sensor systems.