airborne pollen of olea in five regions of portugal. | the aim of this work was to study spatial and temporal distribution of olea europeae airborne pollen in different portuguese regions: reguengos de monsaraz (south); bairrada (west); braga (northwest); valença do douro and foz côa (north-east). airborne pollen sampling was conducted from 1998-2003 using "cour" type samplers located in each region. the main pollen season (mps) of olea lasted on average 36 days and occurred from late april until middle-to-end of june. during the studied period, int ... | 2005 | 16457492 |