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Ragweed (Ambrosia) pollen source inventory for Austria.

G Karrer1, C A Skjøth2, B Šikoparija3

  • 1Department of Integrative Biology and Biodiversity Research, University of Natural Resources and Life Sciences, Vienna, Austria.

The Science of the Total Environment
|April 13, 2015
PubMed
Summary

This study developed a new method to map ragweed (Ambrosia) pollen sources in Austria, identifying key areas in the east. This improves European pollen monitoring and allergy management.

Keywords:
AeroallergenAerobiologyAtmospheric modelsDigital elevation modelInventoriesRagweed ecologyRagweed habitats

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Area of Science:

  • Environmental Science
  • Allergology
  • Spatial Analysis

Background:

  • Invasive ragweed (Ambrosia) poses significant allergenic challenges in Europe.
  • Accurate spatial inventories of pollen sources are crucial for predicting and mitigating allergic reactions.
  • Austria's complex topography and ragweed distribution present unique challenges for source inventory mapping.

Purpose of the Study:

  • To enhance the spatial coverage of top-down Ambrosia pollen source inventories for Europe.
  • To adapt and apply a novel methodology to Austria, considering its specific geographical and ecological factors.
  • To identify high-density Ambrosia pollen source regions within Austria.

Main Methods:

  • Integrated annual ragweed pollen counts (2004-2013) from 19 monitoring stations.
  • Utilized 657 geographical observations of Ambrosia plants.
  • Incorporated a Digital Elevation Model (DEM), local ecological knowledge, and CORINE land cover data.

Main Results:

  • Highest mean annual ragweed pollen concentrations were observed in Eastern Austria.
  • The majority (99%) of Ambrosia populations were found below 745m elevation.
  • European ragweed pollen levels varied significantly, from 0.1% in Freistadt to 12.8% at Rosalia.

Conclusions:

  • The developed methodology effectively maps Ambrosia pollen sources in challenging terrains like Austria.
  • Eastern Austria emerges as a primary source area for ragweed pollen.
  • Further development of top-down inventories is recommended for other European regions to improve pan-European allergy management.