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 ...
For the past 25 years, Susan Harry has been peering into a microscope every spring to count and classify minuscule grains of pollen. It’s a task that can take a few minutes up to an hour and a half at ...
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