Wetlands act as nature’s kidneys: They trap sediments, absorb excess nutrients and turn pollutants into less harmful substances. Now, the list of pollutants wetland plants can remove includes per- and polyfluoroalkyl substances (PFAS). From a greenhouse study, researchers in Environmental Science & Technology report that moisture-loving yellow flag irises and fungi on their roots are a promising combination for PFAS removal. As part of a constructed wetland, this pair could effectively treat contaminated wastewater.
Wetland plant–fungus combo cleans up PFAS in a pilot study
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