Status and trend of the main allergenic pollens in Italy (2003-2019)

The Report describes the status of the presence of the main allergenic pollens and the Alternaria spore in Italy in 2019 and their air concentration trends, measured, from 2003 to 2019, by the monitoring stations of the POLLnet-SNPA network and by the Aerobiological Monitoring Center of Tor Vergata (Rome).