One of the challenges of air quality work is that unless you see visible pollution, smoke plumes coming out and settling in over communities, which unfortunately continues to happen in Pittsburgh, but not every day is like that... So the cameras allow people to see where pollution comes from. They're trained on the major point source pollution facilities are around Pittsburgh and we can see what's happening 24/7. http://www.solvecast.com/articles/detail/15273-civilian-scientists-air-quality-tech-innovation-with-matt-mehalik #50 #air-pollution