Study Of The Airborne Pollen Grains In Rosetta, Egypt

An aeropalynological study was carried out in the atmosphere of Rosetta city, Egypt during a period of one year from August 2015 until July 2016, using a Hirst type volumetric pollen trap. An annual pollen index of 1991 grains was obtained with the highest pollen records from February till May. The main pollen taxain abundance order are Poaceae, Arecaceae, Chenopodiaceae/Amaranthaceae complex, Casuarina, Cupressaceae, Urtica, Pinus, Myrtaceae. A total of eight pollen types with minimum 10-day mean equal to or greater than 0.1 pollen grains/m of air are involved to construct an approximate pollen calendar.The data obtained in this work was compared with others elsewhere in the world. Correlation effects between pollen counts and different meteorological parameters (temperature, rainfall and relative humidity) as well as number of allergic patients were investigated. Most of the recorded pollen grains are of allergenic effects.