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 ...

Pollen may annoy allergy sufferers in springtime but, viewed under the microscope, a pollen grain is a thing of beauty. Amazing images and facts about pollen are part of an exhibition at CSIRO ...

ATLANTA — After a warm, breezy Sunday, the pollen count in Atlanta was measured at 3,028 grains per cubic meter, the highest so far this year. Pine, Oak, Birch, Hackberry, and Sweet Gum were the ...