Anchorage is experiencing particularly high pollen counts this spring — especially for birch, alder, and other tree pollens — ...

Southcentral Alaska has exceptionally high amounts of tree pollen in the air right now ... aspen, willow and alder trees. Brian Farthing, a physician assistant at the Allergy, Asthma & Immunology ...

What's happening: Tree pollen is the main offender this time of year, especially from maple, cedar, alder, and oak — all abundant in the Pacific Northwest. The big picture: Climate change is ...

There are three main types of pollen. Earlier in the spring, tree pollen is the main culprit. After that grasses pollinate, followed by weeds in the late summer and early fall. Some of the most ...

On Tuesday, the Oregon Allergy Associates reported high levels of tree pollen in the air. The dominant pollen was Alder, but tests also picked up Birch, Cedar, Cottonwood, and Hornbeam.

Pollen season, encompassing tree, grass, and weed pollen, can last up to nine months, from February to October. Spring has begun and, in the South, it has been marked with a yellow dust covering ...

Common tree pollen triggers in the spring include juniper, alder, oak, cottonwood, cedar, hickory, birch, and willow, among others. Weeds are mainly triggers from late August into early fall.

The olive tree family also includes forsythia, lilac, jasmine, privet and broom. However, these trees and shrubs produce significantly less and also less aggressive pollen.

the increase in sunshine also means a rise in tree pollen levels. The University of Worcester's most recent weekly pollen forecast indicates that high levels of alder pollen will continue to ...