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Analysis of the grass (Poaceae L.) pollen seasons in Wroclaw, 2003-2010

100%

Malkiewicz M., Klaczak K.

Acta Agrobotanica

2011

tom 64

nr 4

The aim of the study was to analyse the grass pollen season dynamics in Wrocław in 2003-2010. The studies were carried out using volumetric method (Burkard trap). Special attentions was paid to differences in pollen season duration and patterns. The pollen season started on average on the 130th day of the year (±10 days) and ended on the 240th (±11 days). Peak of pollen seasons occurred between 156th and 185th day of the year. The mean of SPI value was 2805 (±380). On average, 18 days (±4 days) with a grass pollen concentration of more than 50 grains×m-3, and 2 days (±1 day) with concentration of more than 120 grains×m-3 were recorded during the seasons analysed. Three types of pollen seasons were distinguished on the basis of cluster analysis (the non-hierarchical method of multifeature clustering – the k-means method).

Pollen concentrations of some plants in the air over Olszanica (Bieszczady Niskie Mountains) and Wroclaw in the 2008 season

100%

Malkiewicz M., Klaczak K.

Acta Agrobotanica

2010

tom 63

nr 2

This paper presents the results of an analysis of pollen season patterns for taxa which show the strongest allergenic activity (alder, birch, grasses, and mugwort) in 2008 in the air over Wrocław and Olszanica. The study was carried out using the volumetric method (Burkard trap). The results show variation in pollen seasons between the analyzed localities. An attempt was made to find out in which of the sites in question – the urban site or the rural one – there was a greater risk of allergens of the selected plants. The results of the present study show that the alder, birch and grass pollen seasons in 2008 started and ended earlier in Wrocław, and maximum pollen concentrations were definitely lower. But the mugwort pollen season started earlier and ended much later in Olszanica, while maximum pollen concentration of this taxon was more than twice lower than in Wrocław. In 2008 in the investigated localities, the highest pollen concentrations of the plants in question occurred in the following months: alder in February, birch in April, grasses in June, while mugwort in August. In 2008 alder and birch pollen allergen risk was comparable in the investigated urban and rural environment. However, grass and mugwort pollen allergens posed a significantly greater threat in the rural environment than in Wrocław.

Ograniczanie wyników

2 Acta Agrobotanica

2 Klaczak K.

2 Malkiewicz M.

1 2011

1 2010

Wyniki wyszukiwania

Analysis of the grass (Poaceae L.) pollen seasons in Wroclaw, 2003-2010

Pollen concentrations of some plants in the air over Olszanica (Bieszczady Niskie Mountains) and Wroclaw in the 2008 season