Pollen count for the region Alphen aan den Rijn
beech
poplar
birch
willow
oak
grasses
rumex
plantain
mugwort
ragweed
hazel
rye
alder
beech
poplar
birch
willow
oak
grasses
rumex
plantain
mugwort
ragweed
hazel
rye
alder
beech
poplar
birch
willow
oak
grasses
rumex
plantain
mugwort
ragweed
hazel
rye
alder
beech
poplar
birch
willow
oak
grasses
rumex
plantain
mugwort
ragweed
hazel
rye
alder
beech
poplar
birch
willow
oak
grasses
rumex
plantain
mugwort
ragweed
hazel
rye
alder
beech
poplar
birch
willow
oak
grasses
rumex
plantain
mugwort
ragweed
hazel
rye
alder
beech
poplar
oak
birch
willow
plantain
grasses
rye
rumex
mugwort
ragweed
hazel
alder
