Pollen and allergies — Toruń
Above the wide Vistula valley, on the edge of the Toruń Basin, lies Toruń – a Gothic town that grew out of a medieval Teutonic castle. The river splits the city in two, and the valley floor and the neighbouring upland differ in microclimate: fogs and frosts appear more often in the basin, and cool air can settle there for many hours.
Such a basin-shaped ground acts on pollen in a distinctive way. On windless days pollen lingers over the city instead of being blown away, so calm days can bring higher concentrations than the open upland. The pine woods of the Bory Toruńskie press against the city from the west and south, and birches thrive among the inland dunes and sandy pastures. Compared with Bydgoszcz, described separately, which stretches along the Brda and its reservoirs, Toruń is a town of the wide river, dunes, and pine woods.
Main allergens and season
- February–March: hazel and alder in the Vistula valley and in damp hollows.
- April–May: birch and oak in the conifer forests and parks; pine sheds plenty of pollen, though it is a weaker allergen.
- May–July: grasses on Vistula meadows, embankments, and flood levees.
- August–September: mugwort and ragweed on the dunes, by roads, and on wasteland.
The forecast uses the European CAMS model through Open-Meteo. Levels are modeled, not measured at a local station within this service, so they are orientative. The model's grid has a resolution of about 11 km, so it does not reproduce pollen lingering in the valley on still nights. It covers six species: alder, birch, grasses, mugwort, olive, and ragweed – olive is included for comparison with southern Europe, since it pollinates only marginally in Poland.
What is pollinating today?
Check the Toruń pollen forecast, especially after still, foggy nights in the basin.