THE ANALYSIS OF DAILY CONCENTRATIONS OF AIRBORNE POLLEN IN THE WEST AND SOUTHWEST OF ROMANIA

This analysis is meant to determine the way the pollen grains are disseminated in the atmosphere in Western and South-Western Romania in the year 2004, by using the volumetric method of collecting, identifying and quantifying data. The monitoring period started on the 16th of February and ended on the 10th of October 2004 (238 days). 23 pollen types were identified. The early spring – spring period was dominated by the pollen coming from anemophilic trees. In the late summer – autumn period the airplankton was dominated by the airpollen coming from herbaceous plants. For the investigated area the maximal quantity of airpollen occurred in April. The daily concentration of airpollen for each pollinic type is expressed in number of pollen grains on m3 of air (PG/ m3). Other parameters taken into account were: the total daily concentration of airborne pollen, the total monthly variation, and the total annual variation. The highest daily concentrations were those of Ambrosia (August and September), Artemisia (August), and Poaceae (May, June, and July). The main airborne polluter was the pollen of Ambrosia artemisiifolia.