Ever wondered what air you’re breathing in when you go past that smoggy road? Or maybe just want to see if your healthy bike ride to work is really that healthy? Well scientists in San Diego have developed portable sensors which allow real-time air quality readings to be accessed from smart phones or home computers. They ended up being great conversation starters and there was a lot of information sharing about areas of high/low pollution in the community. There were also a lot of suprises – like higher pollution levels on the bike paths near the roads than on the roads themselves. I hope this ends up being extended and developed. I can imagine it being a great way of enabling communities to find out about pollution in their areas. If you’re interested here’s a more in depth article I wrote about it for Bang! Science magazine.