In brief

The alder and hazel pollen season has begun.

The inflorescences of these trees are ripe and disperse pollen in the air when conditions are favorable. Currently, low temperatures and rain events tend to limit this dispersal.

People who are more sensitive or who are locally exposed may already be affected by allergy symptoms. During this risk period, it is recommended to take all necessary precautions as concentrations can quickly increase in case of dry weather.

Alder + Hazel

Latest measure: 
Thursday, 2 February, 2023
20222023Mean 2013 - 202207 Jan14 Jan21 Jan28 Jan04 Feb11 Feb18 Feb25 Feb04 Mar11 Mar18 Mar25 Mar01 Apr020406080100120140160180200220240260grains / m³

Good to know

  • A few useful recommendations: avoid outdoor activities, wear sun glasses, do not dry linen outside, rinse your nose regularly, wash your hair before going to sleep.
  • Typical allergy symptoms such as runny nose, cough or shortness of breath (in case of asthma) can easily be mistaken for a cold, flu or coronavirus infection. However, fever and body aches should be given special attention as they might be caused by viral infection. It is recommended to call your general practitioner in case of doubt.
  • The standardized pollen detection technique allows retrospective measurement of the levels from samples taken the day before. Samples are analyzed manually during the working days by optical microscopy.
  • Follow us too on Twitter @AirAllergy !