Why is the pollen count so erratic – high one day and low the next?
Weather conditions affect the pollen count greatly. Dry weather usually causes an increase in the amount of pollen dropping. Rain usually washes a lot of pollen out of the air – counts go down. Wind can cause pollen to be carried farther. Moisture & humidity usually cause an increase in the fungal spores. Fires & wind may cause an increase in the unidentified particulate matter (UPM’s). Our pollen sampling covers a 24-hour period. Pollen concentrations are usually highest between 5 am and 10 am and this can make a difference in how much you are affected by pollen.
