JACKSONVILLE, Fla. – We often show you a graphic during our weather forecasts to let you know how bad the pollen is -- now, a lab at Edward Waters University is giving us even more data to work with.

When millions of minuscule pollen grains invade Richmond, we see the yellow powder covering cars and swirling down the sidewalks after rain. Under Becky Collie’s microscope at Allergy Partners of ...