The Weather Page

The Baltimore Sun

Itchy, sneezy? If not, the yellow dust on your car proves that pollen counts are sky-high. Ann Pugh writes from Timonium, "Is there a time of day when the pollen count is the highest and the lowest? What weather conditions favor greater pollen and less pollen?" The allergy docs at Hopkins say most pollen levels climb in the afternoon, but some, like ragweed are highest just before sunrise. More pollen gets airborne in dry, windy weather. Rain cleanses the air briefly but promotes weed growth.

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