Mark Ferrey

Minnesota Pollution Control Agency researcher Mark Ferrey has found trace amounts of suspected endocrine disruptors throughout Minnesota’s waters. He hasn’t tried to limit exposure for himself or his two older boys, “but if I had infants, I’d be much more careful about what they were exposed to.” Photo: Kate Golden, Wisconsin Center for Investigative Journalism

Minnesota Pollution Control Agency researcher Mark Ferrey has found trace amounts of suspected endocrine disruptors throughout Minnesota’s waters. He hasn’t tried to limit exposure for himself or his two older boys, “but if I had infants, I’d be much more careful about what they were exposed to.” Photo: Kate Golden, Wisconsin Center for Investigative Journalism