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