As for grass pollen, those across the northern Plains into the Great Lakes can expect an early spike in June and July, thanks to a combination of above-average rainfall and warmer weather. High to ...

A new study shows that the shape of urban trees affects how pollen travels through the air, which could help cities reduce allergy exposure.

Pollen is already ramping up in parts of the South and West. Here’s when tree, grass and weed pollen will spike — and which regions will have the highest levels this year.

Itchy eyes and constant sneezing is a familiar start to spring for many hay fever sufferers, but this year high pollen levels have hit weeks earlier than usual. A pollen forecast by the University of ...

As temperatures rise and spring begins, the allergy-causer pollen is making its way back to South Carolina, coating cars, ...