Pollen count for the region Cologne
oak
grasses
beech
rumex
plantain
mugwort
hazel
elm
birch
willow
rye
poplar
ash
alder
oak
grasses
rumex
plantain
mugwort
hazel
elm
birch
beech
willow
rye
poplar
ash
alder
oak
grasses
rumex
plantain
mugwort
hazel
elm
birch
beech
willow
rye
poplar
ash
alder
grasses
oak
rumex
plantain
mugwort
hazel
elm
birch
beech
willow
rye
poplar
ash
alder
grasses
oak
rumex
plantain
mugwort
hazel
elm
birch
beech
willow
rye
poplar
ash
alder
grasses
oak
rumex
plantain
mugwort
hazel
elm
birch
beech
willow
rye
poplar
ash
alder
grasses
oak
rye
rumex
plantain
mugwort
hazel
elm
birch
beech
willow
poplar
ash
alder
