Перегляд за Автор "Palamarchuk, Olena"

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  • Ескіз недоступний
    Документ
    Modeling hay fever risk factors caused by pollen from Ambrosia spp. using pollen load mapping in Ukraine
    (2018) Rodinkova, Victoria; Palamarchuk, Olena; Toziuk, Olena; Yermishev, Oleh
    The paper provides a simulation of the occurrence of Ambrosia pollen in Ukraine both in terms of a determination of the regions with high pollen concentrations and the time when the high pollen load occurs. Simulation was performed using the SILAM system and the following pollen mapping using the Grid Analysis and Display System. Simulation results were compared with the aerobiological data available from six monitoring stations in Ukraine. A decrease in the concentrations of Ambrosia pollen, the duration of the Ambrosia season, and patient exposure to the Ambrosia pollen were apparent from SE to NW of Ukraine. A close correlation between the modeled and actually registered pollen concentration values and ragweed pollen release periods was observed in all the cities for which the Ambrosia pollen monitoring data had been collected. Further investigations are required to provide accurate forecasts for other types of airborne allergens.
  • Ескіз недоступний
    Документ
    Seasonal changes in plant pollen concentrations over recent years in Vinnytsya, Central Ukraine
    (2018) Rodinkova, Victoria; Kremenska, Lilia; Palamarchuk, Olena; Motruk, Iryna; Alexandrova, Elena; Dudarenko, Oxana; Vakolyuk, Larysa; Yermishev, Oleh
    The control of plant pollen season patterns is especially important in the expectation of climate change, as the timing of potential varying pollen seasons affects the human population. An ever-increasing number of people suffer from hay fever symptoms with varying severity during the pollen season. This paper presents data on the seasonal variations of pollen concentration and the factors which are the likely causes of these variations in Vinnytsya, a city in Central Ukraine, in order to establish the apparent pattern of this variation and so improve the efficiency of hay fever control in Ukraine. Pollen counts were obtained by gravimetric and volumetric methods employing a Hirst-type volumetric spore trap. Alder (Alnus) and birch (Betula) peaks of pollen release occurred approximately 1 month earlier than was observed at the end of the twentieth century. This was due to the seasonal heat accumulation related to the appropriate temperature regimen registered in January and February prior to the growing season. Other trees – including poplar (Populus), maple (Acer), walnut (Juglans), common hazel (Corylus) – did not show distinct changes in pollen season pattern over the past decades. Mean daily temperature seems to be the leading factor promoting early season onset and a seasonal pollen peak shift of the grass and herb flora such as ragweed (Ambrosia). The shift of the ragweed seasonal pollen maximum towards later in the season correlated with higher temperatures during September. Our study has shown that droughts may also significantly decrease the ragweed pollen concentration.