One Idea for Mobile Fest

I was reading some articles on the net about mobile technologies and something came up on my mind. It's a good idea for the MobileFest festival that will happen at end of year here in Brazil. For people who don't know what MobileFest is, i'll give a brief explanation. It's a festival about mobile technology that call for papers and articles about a lot of social-cultural themes envolved to it.
The theme this year is "How mobile technology can help to democracy, culture, art, education, ecology, peace, health and third-sector ? "
One of my ideas is about how we can help , avoid and try to alert people about pollution in Brazil. Today, millions of gas from cars, factories are spreaded. Thus people don't know how the air they're breathing can be contaminated. Why can we create a mobile application that advises us about the quantity of pollution where we are at the moment ? So i was searching something related to that idea, so that's what i found:

Squirrel is a Bluetooth-enabled gadget that monitors pollution, being developed by Shannon Spanhake and colleagues at the University of California San Diego and Calit2. MedGadget reports.

"Squirrel fits in the palm of your hand and can be clasped to a belt or purse. The small, battery-powered mobile device can sample pollutants with its on-chip sensor.

Using a Bluetooth wireless transmitter, the device connects to the user's cell phone. A software program called Acorn allows the user to see the current pollution alerts through a screensaver on the cell phone's display.

...The phone also periodically transmits the environmental data to a public database on the Internet operated by Calit2."

A good idea, a cell phone that monitors air pollution and alerts you the current pollution. A good way of conscientize people about pollution is today a unpleasant huge presence.

Source: SmartMobs

A good idea to implement for the MobileFest Festival at Brazil, don't you think ?