If you live in central Illinois, you may have spotted a small, dome-like device that resembles a flying saucer along a fence or in a neighbor’s backyard. Those devices are air samplers, specifically designed to measure pesticide drift. We’ve placed four samplers in agricultural communities to learn more about what chemicals, if any, might be drifting from corn and soybean fields onto nearby backyards, school grounds and parks as spraying gets underway this spring. We have also placed a sampler near our office in Champaign to serve as a control. Below, you will find more information about how this project will contribute to our reporting, how the community helped determine the locations of the samplers and exactly how the samplers work.