De Haan

Grasses

Latest measure: 
Sunday, 15 May, 2022
20212022Mean 2012 - 2021threshold value06 May13 May20 May27 May03 Jun10 Jun17 Jun24 Jun01 Jul08 Jul15 Jul22 Jul0102030405060708090grains / m³

Oak

Latest measure: 
Sunday, 15 May, 2022
20212022Mean 2012 - 202101 Apr08 Apr15 Apr22 Apr29 Apr06 May13 May20 May27 May050100150200250300350400450grains / m³

Birch

Latest measure: 
Sunday, 15 May, 2022
20212022Mean 2012 - 2021threshold value11 Mar18 Mar25 Mar01 Apr08 Apr15 Apr22 Apr29 Apr06 May13 May050100150200250300350400grains / m³

Ash

Latest measure: 
Sunday, 1 May, 2022
20212022Mean 2012 - 202118 Feb25 Feb04 Mar11 Mar18 Mar25 Mar01 Apr08 Apr15 Apr22 Apr29 Apr0102030405060708090grains / m³

Alder + Hazel

Latest measure: 
Friday, 1 April, 2022
20212022Mean 2012 - 202107 Jan14 Jan21 Jan28 Jan04 Feb11 Feb18 Feb25 Feb04 Mar11 Mar18 Mar25 Mar01 Apr050100150200250300350400450500550600grains / m³

Mugwort

Latest measure: 
Thursday, 16 September, 2021
2021Mean 2012 - 202115 Jul22 Jul29 Jul05 Aug12 Aug19 Aug26 Aug02 Sep09 Sep16 Sep024681012141618grains / m³

Cladosporium

Latest measure: 
Sunday, 8 May, 2022
20212022Mean 2012 - 2021threshold valueMayJunJulAugSepOctNov02000400060008000100001200014000fungal spores / m³

Alternaria

Latest measure: 
Friday, 1 October, 2021
2021Mean 2012 - 2021threshold valueJunJulAugSepOct050100150200250300350400450500550fungal spores / m³

With thanks to Eddy Basslé for analysing the samples (supervised by Dr. De Guchtenaere Ann)

Zeepreventorium VZW
Koninklijke Baan 5
8420 De Haan