Fig. 1
From: The association between airborne pollen monitoring and sensitization in the hot desert climate
Seasonal variation of the daily mean total count (pollen grain/m3) of pollen in the sampling sites. Two sampling stations in two different cities recorded pollens over 2 years in the atmosphere of Qatar. The seasonal peak was observed in the periods between August to October, and February to March. The maximum concentration of pollen was 40 pollen grains/m3