Pollen count for the region Preston
yew
alder
plantain
oak
nettle
mugwort
hazel
grasses
elm
birch
willow
rumex
poplar
ash
yew
alder
hazel
willow
plantain
oak
nettle
mugwort
grasses
elm
birch
rumex
poplar
ash
yew
alder
hazel
willow
plantain
oak
nettle
mugwort
grasses
elm
birch
rumex
poplar
ash
yew
alder
hazel
willow
plantain
oak
nettle
mugwort
grasses
elm
birch
rumex
poplar
ash
yew
alder
hazel
willow
plantain
oak
nettle
mugwort
grasses
elm
birch
rumex
poplar
ash
yew
alder
hazel
willow
plantain
oak
nettle
mugwort
grasses
elm
birch
rumex
poplar
ash
yew
alder
hazel
willow
ash
plantain
oak
nettle
mugwort
grasses
elm
birch
rumex
poplar
