De Haan

Grasses

Latest measure: 
Sunday, 28 May, 2023
20222023Mean 2013 - 2022threshold value29 Apr06 May13 May20 May27 May03 Jun10 Jun17 Jun24 Jun01 Jul08 Jul15 Jul0102030405060708090100110120130grains / m³

Birch

Latest measure: 
Tuesday, 23 May, 2023
20222023Mean 2013 - 2022threshold value18 Mar25 Mar01 Apr08 Apr15 Apr22 Apr29 Apr06 May13 May20 May050100150200250300350400450grains / m³

Oak

Latest measure: 
Saturday, 27 May, 2023
20222023Mean 2013 - 202201 Apr08 Apr15 Apr22 Apr29 Apr06 May13 May20 May27 May050100150200250300350400450grains / m³

Ash

Latest measure: 
Monday, 1 May, 2023
20222023Mean 2013 - 202218 Feb25 Feb04 Mar11 Mar18 Mar25 Mar01 Apr08 Apr15 Apr22 Apr29 Apr0102030405060708090100110120130140grains / m³

Alder + Hazel

Latest measure: 
Saturday, 1 April, 2023
20222023Mean 2013 - 202207 Jan14 Jan21 Jan28 Jan04 Feb11 Feb18 Feb25 Feb04 Mar11 Mar18 Mar25 Mar01 Apr020406080100120140160180200220grains / m³

Cladosporium

Latest measure: 
Sunday, 21 May, 2023
20222023Mean 2013 - 2022threshold valueMayJunJulAugSepOctNov050001000015000200002500030000fungal spores / m³

Alternaria

Latest measure: 
Saturday, 1 October, 2022
2022Mean 2013 - 2022threshold valueJunJulAugSepOct050100150200250300350400450500550600fungal spores / m³

Mugwort

Latest measure: 
Friday, 16 September, 2022
2022Mean 2013 - 202215 Jul22 Jul29 Jul05 Aug12 Aug19 Aug26 Aug02 Sep09 Sep16 Sep02468101214grains / m³
With thanks to Eddy Basslé for analysing the samples (supervised by Dr. Emmanuel Nelis)

Zeepreventorium VZW
Koninklijke Baan 5
8420 De Haan

https://www.zeepreventorium.be