A passing shower on the first day of spring knocks down a coating of yellow tree pollen that swirls around Dogwood blooms in a water puddle in Newborn. Made with Canon EOS 1DX camera, a 70-210 zoom lens at 180 mm, 1/200 second, F/9, ISO 640. Curtis Compton / email@example.com
Pollen is caused by trees, grass and weeds and can aggravate the symptoms of people with allergies. The Atlanta Allergy & Asthma pollen count measures how much pollen is in the air every day. The index ranges from a low of 0 to a high of 1500.