The Lincoln Memorial Reflecting Pool Is Treated With ‘Nanobubbles.’ What Are They and How Do They Work?

As the United States approaches its 250th birthday celebrations on July 4, Washington, D.C.’s monuments, statues, and fountains are being prepared to put on a show.

However, renovations of the Lincoln Memorial Reflecting Pool haven’t gone to plan.

Soon after the renovations were complete, an algal bloom turned the pool’s water a slimy green. Officials are in a hurry to address the issue and, among other treatments, deployed ozone nanobubble technology to clean the water.

But what are nanobubbles, and why would they be used to address an algal bloom?

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