title: Interactions between climatic changes and allergenic plants.
abstract: Records of the start of some allergenic pollen seasons monitored in Perugia (Central Italy) for the last two decades indicate a trend for the pollen seasons of spring flowering plants to begin earlier. The duration of the pollination of some taxa shows a trend to be shorter while Urticaceae reveal an increase of 20 days for its length over the same period. These trends show a close relationship to an increase in the annual mean air temperature recorded in Perugia in the last years due to, above all, the temperature of February, May, June and August.
mesh_terms: D000485:Allergens / Q000009:adverse effects*; D002980:Climate; D006801:Humans; D006967:Hypersensitivity / Q000209:etiology* / Q000503:physiopathology*; D007558:Italy; D010944:Plants / Q000009:adverse effects*; D013997:Time Factors
chemical_list: D000485:Allergens