Impact of 2003 heat waves on aerobiological indices of allergenic herbaceous family pollen season in Tuscany (Italy)

摘要: The aim of this study was to assess the current aerobiological situation and investigate influence hot dry summer 2003 on pollen season (onset, end duration season, peak day value, total seasonal amount grains) herbaceous family as Poaceae, Urticaceae Compositeae. Heat wave influenced phenology main families in Tuscany: high temperatures occurred during affected different with responses. This confirms role that climate has flora species particular variability pollination among places, extreme events. In general, spring temperature induces an advance flowering period a release higher quantity Poaceae; however, exceptional weather conditions (i.e., 2003) could exert opposite effect, resulting impairment autumn. Compositeae produced low 2003, even if value than average some stations.