Pollen and Mold Guide

If the pollen count is high, hit the gym

From Prevention Magazine.

Though pollen levels vary over the course of the day, a pollen count (the measure of pollen levels in a given area over the preceding 24 hours) can tip you off when it's particularly hazardous outside. Many people start having trouble when the count reaches the 20 to 100 grains per cubic meter range. For the pollen count in your area, as well as helpful tips on allergies, call (800) 9-POLLEN (976-5536) between 8:00 am and 8:00 pm EST.

(Mold counts aren't as reliable a guide, because mold spore levels are directly related to weather and will vary more widely over the course of a day than pollen levels do.)

Time of day when levels are highest

Pollen: 5:00 to 10:00 am and early evening

Mold: varies with type of mold; some release spores during the day; others, at night

Time of day when levels are lowest

Pollen: mid to late afternoon

Mold: varies with type of mold

Weather when levels are highest:

Pollen: warm, dry, breezy

Mold: warm and humid, particularly after a rain shower

Weather when levels are lowest:

Pollen: chilly, wet*

Mold: cold and rainy

Places where levels are highest:

Pollen: parks with lots of trees and grass; meadows

Mold: damp, shady spots with fallen leaves and rotting vegetation; freshly cut lawns, fields, and pastures

Places where levels are lowest:

Pollen: indoor spaces with filtered air

Mold: dry, cool, well-ventilated areas

Note: heavy rain can temporarily wash pollen out of the air.

Advertisement - Continue Reading Below
More From Health