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A powerful green laser helps visualize the aerosol plumes from a toilet when it’s being flushed. Photo by Patrick Campbell/CU Boulder.
Published: Dec. 8, 2022 • By Kelsey Simpkins, Nicholas Goda
Thanks to new CU Boulder research, scientists see the impact of flushing the toilet in a whole new light—and now, the world can as well.
Using bright green lasers and camera equipment, a team of CU Boulder engineers ran an experiment to reveal how tiny water droplets, invisible to the naked eye, are rapidly ejected into the air when a lid-less, public restroom toilet is flushed. Now published in Scientific Reports, it is the first study to directly visualize the resulting aerosol plume and measure the speed and spread of particles within it.
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