Stock Photo - 14 February 2023, Berlin: Matthias Werchan, landscape ecologist at the German Pollen Information Service (PID) foundation, checks a pollen trap on the roof of the Charite dermatology clinic. In the pollen trap, a plastic strip coated with a carrier film ensures that the aspirated pollen and other airborne dust particles adhere. The European Centre for Allergy Research Foundation (ECARF) and the PID will be holding a press conference to provide information on ""The latest news on the start of the 2023 pollen season"". Photo: Wolfgang Kumm/dpa. - Berlin/Berlin/Germany

Stock Photo: 14 February 2023, Berlin: Matthias Werchan, landscape ecologist at the German Pollen Information Service (PID) foundation.

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