The team conducted a series of experiments in which known quantities of five such chemicals were mixed with water and passed through a dishwasher, a washing machine, a showerhead inside a shower stall or a tap in a bath, all inside a specially designed chamber.
Vacationers were wearing ponchos instead of swimsuits at the peak of the summer season because of the tropical storm, which has drenched Florida for at least four days straight like a giant showerhead set up over the state's Gulf Coast.