20.500.12556/DiRROS-30167 Long‑term changes in the timing and intensity of the pollen season in Slovenia (2002–2024) Climate change is reshaping pollen season dynamics across Europe, with significant implications for allergic populations. This study presents the first comprehensive long-term analysis of pollen season trends in Slovenia, a region characterized by high phytogeographic diversity at the intersection of Mediterranean, Alpine, Dinaric, and Pannonian climatic influences. Daily airborne pollen concentration data from three monitoring stations were analyzed for 14 allergenic taxa over 23 years (2002–2024). Pollen season timing was determined using a normalized cumulative-sum approach, and linear regression quantified temporal trends in season onset, termination, duration, and total annual pollen load. Results reveal general advancement in season onset across most taxa, particularly pronounced for arboreal species in the Mediterranean region. Season termination exhibited asymmetric patterns: earlier endings for spring-flowering trees and delayed termination for herbaceous taxa, especially Poaceae. Notably, trees showed compressed seasons due to faster advancement of season end relative to onset, potentially leading to more intense allergen exposure despite shorter duration. Significant increases in annual pollen load were detected for Poaceae, Urticaceae, and Plantago, while Artemisia showed widespread decline. The coastal Mediterranean site exhibited significantly earlier onset, later termination, and longer seasons compared to continental stations, which showed strong inter-site synchrony. These findings demonstrate asymmetric seasonal responses to climate forcing across small spatial scales, with important implications for region-specific public health strategies. airborne pollen pollen trends pollen season Slovenia mediterranean climate continental climate cvetni prah v zraku trendi cvetnega prahu sezona cvetnega prahu Slovenija sredozemsko podnebje celinalno podnebje true false true Pitagora Editrice Angleški jezik Slovenski jezik Neznano 2026-06-16 12:18:57 2026-06-16 12:18:58 2026-06-17 03:46:52 0000-00-00 00:00:00 2026 0 0 Soavtorji: Vladimir Grubelnik, Anja Simčič, Andreja Kofol Seliger, Urška Razboršek, Marko Marhl, Uroš Lešnik Str. 1-19 Letn. 42, [št. članka] 35 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2026-01-29 2026-06-01 2026-06-11 61 0393-5965 10. 1007/ s10453- 026- 09924-x 281594371 markovic_long_term_2026.pdf markovic_long_term_2026.pdf 1 115B48D970204887E8AED1BC9E838D20 ddfda14c8fc8b9cfbd7cfe5ef953ded4637a841f2e43dd8426e7a56b29ce6866 fb35c9b2-696c-11f1-97b2-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=45647 https://link.springer.com/article/10.1007/s10453-026-09924-x 1 cb060978-696c-11f1-97b2-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=45646 Nacionalni laboratorij za zdravje, okolje in hrano 0 0 0