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Examining Ambrosia pollen episodes at Poznań (Poland) using back-trajectory analysis
1Laboratory of Aeropalynology, Adam Mickiewicz University, Poznań, Poland.
International Journal of Biometeorology
|November 23, 2006
Summary
Ragweed (Ambrosia spp.) pollen in Poznań, Poland, originates from both long-range transport from Central Europe and local sources within Poland. Analysis of air mass trajectories identified distinct southerly and easterly origins for morning and afternoon pollen peaks.
Area of Science:
- Aerobiology
- Atmospheric Science
- Allergology
Background:
- Ragweed (Ambrosia spp.) pollen is a significant aeroallergen in Europe.
- Understanding the sources of airborne pollen is crucial for managing allergies.
Purpose of the Study:
- To identify the origins of Ambrosia pollen arriving in Poznań, Poland.
- To analyze temporal variations and transport pathways of Ambrosia pollen.
Main Methods:
- Temporal analysis of Ambrosia pollen in Poznań (1995-2005).
- Back-trajectory analysis using the ACDEP Lagrangian air pollution model.
- Investigation of six specific Ambrosia pollen episodes (2001-2005).
Main Results:
- Two distinct Ambrosia pollen peaks were observed: early morning (4-8 a.m.) and afternoon (2-6 p.m.).
- Morning peaks were associated with air masses from the south (Southern Poland, Czech Republic, Slovakia, Hungary).
- Afternoon peaks were linked to air masses originating from the east, primarily within Poland.
Conclusions:
- Long-range transport from Central Europe contributes to Ambrosia pollen in Poznań.
- Local presence and sources of Ambrosia within Poland are also significant.
- Pollen transport patterns differ based on the time of day, indicating complex source-receptor relationships.
