Mold spore levels last week sky-rocketed to three times the historical average. (Walter Reed Army Medical Center)

Susan Kosisky, microbiologist at Walter Reed’s Centralized Allergen Extract Lab reports in today to tell us last week’s levels were nearly triple the long-term average:

The daily average for the last week in September 2011 was 30,867 spores/cubic meter of air, compared to an 11 year average of 11,412 spores/cubic meter of air.

Check out the spike in the graph above...