Ragweed pollen in the air of Szczecin.

Małgorzata Puc 1
1 - Department of General Botany, University of Szczecin, Felczaka 3a, 71-412 Szczecin,Poland. mapuc@univ.szczecin.pl
Ann Agric Environ Med
2004; 11 (1):
ICID: 142689
The aim of the study was to analyse the ragweed (Ambrosia) pollinationin Szczecin (western Poland) in the years 2000-2002. Measurements were performed by the volumetric andgravimetric method. Pollen seasons were defined as the periods of 90 % of the total catch. Ragweed pollenis known as a very potent aeroallergen. In recent years ragweed appeared in Europe in hitherto unknownlocalities, and the number of people allergic to the allergens of this plant has been gradually increasing.In the period of the study a strong tendency towards increasing ragweed pollen counts in the air of Szczecinwas noted. Of the three years studied, the lowest concentration of ragweed pollen observed in 2000 equalleda few pollen grains in 1 m(3) per 24 h. In 2001, the highest airborne concentration of 30 grains in 1m(3) per 24 h was noted at the end of August. The annual pollen count of ragweed in 2002 was 3 timeshigher than in 2001. The pollen season started in the second decade of August and lasted until the beginningof September. The highest airborne concentration of 98 grains in 1 m(3) per 24 h was noted at the beginningof September on a sunny day with strong wind. The pollen count of ragweed was found to depend on theweather conditions, especially on wind speed and relative humidity, diversity of local flora and longdistance transportation.
PMID 15236498 - click here to show this article in PubMed

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