In brief

The grass pollen season is almost over.

Mugwort is blooming. Its pollen may cause allergy symptoms during this summer period.

Large amounts of allergenic fungal spores of the genera Cladosporium and Alternaria are also present in the air. The spore concentration peaks of these molds are very temperature dependent.

Grasses

Latest measure: 
Wednesday, 12 August, 2020
20192020Mean 2010 - 2019threshold value13 May20 May27 May03 Jun10 Jun17 Jun24 Jun01 Jul08 Jul15 Jul22 Jul29 Jul05 Aug12 Aug020406080100120140grains / m³

Mugwort

Latest measure: 
Wednesday, 12 August, 2020
20192020Mean 2010 - 201901 Jul08 Jul15 Jul22 Jul29 Jul05 Aug12 Aug19 Aug26 Aug02 Sep09 Sep16 Sep23 Sep30 Sep024681012141618202224grains / m³

Cladosporium

Latest measure: 
Wednesday, 12 August, 2020
20192020Mean 2010 - 2019threshold valueMayJunJulAugSepOctNov05000100001500020000250003000035000fungal spores / m³

Good to know

  • 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. The update frequency is daily for the Brussels station and weekly for the other stations.