Dr. Mark Moss, an allergist at UW-Madison’s School of Medicine is the station master of the university’s pollen counting site, which is part of a nationwide network of such stations. He’s been the station master for 13 years, and the university has pollen counts going back into the 1990s.
“Over the past two decades, there has been two clear changes: the beginning of the season in the spring starts earlier and the end of the season in the fall goes later,” Moss said.