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Fig. 1 | World Allergy Organization Journal

Fig. 1

From: The grass pollen season 2015: a proof of concept multi-approach study in three different European cities

Fig. 1

Comparison of daily grass pollen concentrations per m3 (left y-axis; gray line), daily averaged SLI values from 0 to 7 (right y-axis; black line) and the pollination periods of the different grass species including phenological stages 1–3 (1 and 3 gray horizontal lines; 2 black horizontal lines) during the main grass pollen season 2015 in Vienna (top left), Berlin (center left) and Turku (bottom right). Moreover, graphs of the linear correlation model of daily SLI observations (y-axis) and the square root of daily pollen concentrations per m3 (x-axis) for Vienna (top right), Berlin (center right) and Turku (bottom right)

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