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