Small, Portable Sensors Allow Users to Monitor Exposure to Pollution on Their Smart Phones

Small, Portable Sensors Allow Users to Monitor Exposure to Pollution on Their Smart Phones
http://ucsdnews.ucsd.edu/pressrelease/small_portable_sensors_allow_users_to_monitor_exposure_to_pollution_on_thei

"Computer scientists at the University of California, San Diego have built a small fleet of portable pollution sensors that allow users to monitor air quality in real time on their smart phones. The sensors could be particularly useful to people suffering from chronic conditions, such as asthma, who need to avoid exposure to pollutants."