Do you frequently travel to places like India or China, in cities where smog van be a problem?
Plume Labs has designed a wearable device focused on tracking pollution in your environment.
The Flow tracker works both indoors and out, and tracks nitrogen dioxide, ozone, volatile organic compounds (VOCs), temperature, and humidity. Wearers can clip it anywhere to track air quality.
The touch screen alerts you to the pollution status of the last 12 hours using Bluetooth Low Energy. You can even share your results in a Plume community.
Here are some applications: