PITTSBURGH — It may not be summer yet, but it is allergy season and if you have been sniffling and sneezing a lot over the last couple of weeks, there's a good reason why.
As trees in our area are starting to bloom and flower, pollen in the air is increasing at a rapid rate.
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Tree pollen is high Thursday, and that's a predominant factor this time of the year.
Grass pollen has not started yet.