High temps over long weekend to lead to peak pollen next week

There will be a lot of sun on Ascension Day, but also clouds and slightly cooler temperatures than usual at between 13 and 17 degrees. The expected summer temperatures will also lead to a peak in grass pollen next week, warned the Leiden University Medical Center. From Wednesday, it will be dry again, and a peak in the concentrations of grass pollen - one of the main causes of hay fever in the Netherlands - is expected. The two pollen counting stations, at the LUMC and the Elkerliek Hospital in Helmond, have counted grass pollen concentrations of about five pollen per cubic meter of air in recent weeks. In the peak period, with dry weather, the concentration can rise to several hundred pollen per cubic meter of air.