POLLEN CALENDAR OF ALLERGENIC PLANTS IN PETROZAVODSK
The article presents the results of long-term aeropalynological monitoring in the territory of Petrozavodsk using the gravimetric method. The average duration of the pollen season in Petrozavodsk is 18 decades - from the beginning of April to the end of September. The maximum content of allergen pollen in the city air was recorded in May and June - from 50 % to 71 % of the annual amount of allergenic pollen. In the aeropalynological spectrum of Petrozavodsk, the pollens of the following 8 trees and 6 herbaceous taxa have allergenic properties: Alnus Mill., Betula L., Pinus L., Populus L., Salix L., Ulmus L., Fraxinus L., Tilia L., Plantago L., Chenopodium L., Rumex L., Artemisia L., Urtica L. and Poaceae Barnh. Based on the results of the study, an average pollen calendar for Petrozavodsk was compiled. The local pollen calendar can be used by allergists to clarify the reasons for pollinosis, as well as to draw up recommendations on the greening of urban areas.