Florida sargassum bloom triggers health warnings and research into useful applications

Record‑high amounts of sargassum seaweed have washed ashore along Florida’s Atlantic and Gulf coasts, creating foul hydrogen‑sulfide odors and irritating skin rashes and respiratory discomfort for beachgoers. Health officials advise avoiding contact and using gloves, noting that the decaying algae can aggravate asthma and other breathing problems.

Researchers at the University of South Florida and Florida International University are studying the bloom’s ecological impact and exploring ways to turn the waste into fertilizer, biogas, cosmetics, and construction materials, supported by an EPA grant. One researcher warned, “The year of 2026 is set to be another major sargassum year … and possibly to be a record year by summer 2026,” and a student observed, “You can’t even be in the sand because the smell gets to your head.” The scientists also caution that the bloom could spread to neighboring states such as Louisiana and Texas later this summer.