Birch trees are in full bloom.

On last weekend, the weather conditions favored the pollen dispersal in the air.

In Brussels, 105, 58 and 77 birch pollen grains per cubic meter of air were measured respectively on Friday, Saturday and Sunday.

People sensitized to this pollen should take precautions because any overrun of the critical threshold (80 grains/m³) represents a high risk of allergy. Pollen concentrations may quickly increase during dry and sunny periods.

Other trees, namely the hornbeam, poplar, ash, willow, yew and the cypress family, are also in bloom.

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A few useful recommendations for people sensitized to birch pollen :

  • rigorously follow the treatment prescribed by your physician
  • don’t mow the lawn, and do not go near places where the lawn is mown
  • avoid outdoor efforts and activities (sports, physical efforts). Indoor activities are a better option
  • limit the aeration of your home during the pollen season, preferably during or after the rain
  • keep the windows closed when you travel by car
  • during dry and windy weather, wearing glasses is recommended to limit contact between the eyes and the pollen
  • do not dry your linen outside
  • use paper handkerchiefs
  • take a shower and wash your hair before sleeping