Drastic reduction in the intensity of Poaceae pollen season in Central Europe (Lublin, Poland) in 22 years
Krystyna Piotrowska-Weryszko, Agnieszka Kubik-Komar, Elżbieta Weryszko-Chmielewska, Agata Konarska, Aneta Sulborska-Różycka

TL;DR
This study shows that grass pollen seasons in Lublin, Poland, have become significantly less intense over 22 years, likely due to climate change.
Contribution
The paper presents a 22-year analysis of grass pollen trends in Lublin, linking reduced pollen intensity to specific climate variables.
Findings
Annual grass pollen sums and high-pollen days decreased significantly, especially in July.
Lower March and May humidity and higher June temperatures were linked to reduced pollen sums.
Pollen season intensity declined notably after 2011, consistent with European trends.
Abstract
Grass pollen grains cause allergic reactions in a large portion of the global population. Aerobiological monitoring provides a valuable method for assessing plant responses to climate change. Wind-pollinated plants exhibit varying responses to climate shifts, and this study aimed to analyze long-term trends in Poaceae pollen concentration in Lublin (Poland) from 2001 to 2022. Pollen seasons were analyzed using the volumetric method. The following parameters were assessed for each season: onset, end, duration, peak value, date of peak, number of high-pollen days, and annual pollen sum. Meteorological data were collected for the same period. Statistical analysis was performed using Spearman’s rank correlation to examine relationships between pollen season parameters and meteorological factors, and multivariate regression models were developed to explore the influence of specific climate…
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Taxonomy
TopicsAllergic Rhinitis and Sensitization · Indoor Air Quality and Microbial Exposure · Asthma and respiratory diseases
