Tree pollen counts compared to average in January 2012 in Washington, D.C. (US Army Centralized Allergen Extract Lab)

The above graph shows the highly elevated levels of tree pollen this January when compared to average, brought to you by the milder than average weather. Note the spike in the last week.


Mold spore counts compared to average in January 2012 in Washington, D.C. (US Army Centralized Allergen Extract Lab)

Here’s how Susan Kosisky, microbiologist at USAG’s Centralized Allergen Extract Lab , characterized the current mold situation:

....the warm weather and rain showers have also impacted weekly averages for the mold spores. The red line for the month of January illustrates an above average count for mold spores for all 4 weekly periods in January. For the second week in January the weekly average count was 2349 spores/cubic meter vs the average count of 537 spores/cubic meter for this period!

Unless/until this mild pattern breaks, it looks like it’s going to be a long allergy/pollen season...

Related: Our gardens in a mild winter: the good, bad and beautiful