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Ragweed Pollen Source Inventory for France - the Second Largest Centre of Ambrosia in Europe

Thibaudon, M. and Šikoparija, B. and Oliver, G. and Smith, Matt and Skjøth, C. (2014) Ragweed Pollen Source Inventory for France - the Second Largest Centre of Ambrosia in Europe. Atmospheric Environment, 83. pp. 62-71. ISSN 1352-2310

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Abstract

France, in particular the Rhône-Alpes region, is one of the three main centres of ragweed (Ambrosia) in Europe. The aim of this study is to develop a gridded ragweed pollen source inventory for all of France that can be used in assessments, eradication plans and by atmospheric models for describing concentrations of airborne ragweed pollen. The inventory combines information about spatial variations in annual Ambrosia pollen counts, knowledge of ragweed ecology, detailed land cover information and a Digital Elevation Model. The ragweed inventory consists of a local infection level on a scale of 0–100% (where 100% is the highest plant abundance per area in the studied region) and a European infection level between 0% and 100% (where 100% relates to the highest identified plant abundance in Europe using the same methodology) that has been distributed onto the EMEP grid with 5 km × 5 km resolution. The results of this analysis showed that some of the highest mean annual ragweed pollen concentrations were recorded at Roussillon in the Rhône-Valley. This is reflected by the inventory, where the European infection level has been estimated to reach 67.70% of the most infected areas in Europe i.e. Kecskemét in central Hungary. The inventory shows that the Rhône Valley is the most heavily infected part of France. Central France is also infected, but northern and western parts of France are much less infected. The inventory can be entered into atmospheric transport models, in combination with other components such as a phenological model and a model for daily pollen release, in order to simulate the dispersion of ragweed pollen within France as well as potential long-distance transport from France to other European countries.

Item Type: Article
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Originally deposited as National Pollen and Aerobiology Research Unit (NPARU)

Uncontrolled Keywords: aeroallergens, bioaerosols, air quality, emissions, particles
Subjects: Q Science > Q Science (General)
Divisions: Academic Departments > Institute of Science and the Environment
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Depositing User: Carsten Skjoth
Date Deposited: 29 Nov 2013 13:37
Last Modified: 04 Jan 2017 16:33
URI: https://eprints.worc.ac.uk/id/eprint/2763

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