Pollen count for the region Den Helder
poplar
hazel
willow
beech
plantain
oak
mugwort
ragweed
grasses
birch
rye
rumex
alder
poplar
hazel
willow
beech
plantain
oak
mugwort
ragweed
grasses
birch
rye
rumex
alder
poplar
hazel
willow
beech
plantain
oak
mugwort
ragweed
grasses
birch
rye
rumex
alder
poplar
hazel
willow
beech
plantain
oak
mugwort
ragweed
grasses
birch
rye
rumex
alder
poplar
hazel
willow
beech
plantain
oak
mugwort
ragweed
grasses
birch
rye
rumex
alder
poplar
willow
beech
plantain
oak
mugwort
ragweed
hazel
grasses
birch
rye
rumex
alder
poplar
willow
beech
plantain
oak
mugwort
ragweed
hazel
grasses
birch
rye
rumex
alder
