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Lake-dwelling robot fights toxic algae blooms

The so-called Environmental Sample Processor, ESPniagara, sits on the floor of Lake Erie’s western basin. It collects algae from the surrounding water, analyzes microcystin—a small, circular liver-toxic protein—and uploads results for researchers at the end of every test. They’re watching this toxin closely, because elevated levels of it could swiftly poison the water supply for humans, and wildlife in the surrounding area.

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